Attenuation of Seismic Coda-Waves in Algeria: Algiers Vicinity and Mitidja Basin
Abstract A single backscattering method is used to estimate coda quality factor functions (Qc) from coda-wave attenuation for the Algiers vicinity and eastern part of the Mitidja Basin. The frequency-dependent Qc relation is determined using a high-quality data set with good signal-to-noise ratios (...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Benkaci, Nassima [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2022 |
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| Schlagwörter: |
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| Anmerkung: |
© The Author(s), under exclusive licence to Springer Nature Switzerland AG 2022 |
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| Übergeordnetes Werk: |
Enthalten in: Pure and applied geophysics - Basel : Birkhäuser, 1939, 179(2022), 3 vom: 28. Feb., Seite 1011-1035 |
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| Übergeordnetes Werk: |
volume:179 ; year:2022 ; number:3 ; day:28 ; month:02 ; pages:1011-1035 |
| Links: |
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| DOI / URN: |
10.1007/s00024-022-02974-5 |
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| Katalog-ID: |
SPR046739637 |
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| 520 | |a Abstract A single backscattering method is used to estimate coda quality factor functions (Qc) from coda-wave attenuation for the Algiers vicinity and eastern part of the Mitidja Basin. The frequency-dependent Qc relation is determined using a high-quality data set with good signal-to-noise ratios (SNR > 5) of 228 accelerogram waveforms of local earthquakes in the magnitude range 2.3–5.3, with focal depth varying from 1.3 to 31 km and epicentral distances less than 65 km. We studied the frequency and lapse time dependence of coda-wave attenuation through the variation of coda window length of 20, 30 and 35 s for seven frequency bands in the range of 1.5–24 Hz. The obtained average Qc increases with increasing coda window length, implying an increase in sampled depth. The Qc of horizontal components (N and E) are slightly lower than the Qc of the vertical component (Z). The obtained low values of Qc and high values of frequency-dependent parameter n indicate that the penetration depth that consists of the crust and part of the upper mantle beneath the Algiers region is seismically active with a high level of heterogeneity. The average frequency-dependent Qc values in the three directions are QcZ = (69.76 ± 2.98)f(0.82 ± 0.01), QcN = (60.2 ± 4.86)f(0.88 ± 0.03) and QcE = (59.63 ± 5.07)f(0.88 ± 0.03) with a coda window length of 20 s in which the penetration depth is 56.2 km and the covered area is 8141 $ km^{2} $. | ||
| 650 | 4 | |a Attenuation |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Northern Algeria |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a coda-wave |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a single backscattering model |7 (dpeaa)DE-He213 | |
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| 700 | 1 | |a Mehiaoui, Mahdia Y. |0 (orcid)0000-0003-0014-4402 |4 aut | |
| 700 | 1 | |a Bensalem, Rabah |0 (orcid)0000-0002-0202-4466 |4 aut | |
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10.1007/s00024-022-02974-5 doi (DE-627)SPR046739637 (SPR)s00024-022-02974-5-e DE-627 ger DE-627 rakwb eng Benkaci, Nassima verfasserin (orcid)0000-0001-6783-9837 aut Attenuation of Seismic Coda-Waves in Algeria: Algiers Vicinity and Mitidja Basin 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2022 Abstract A single backscattering method is used to estimate coda quality factor functions (Qc) from coda-wave attenuation for the Algiers vicinity and eastern part of the Mitidja Basin. The frequency-dependent Qc relation is determined using a high-quality data set with good signal-to-noise ratios (SNR > 5) of 228 accelerogram waveforms of local earthquakes in the magnitude range 2.3–5.3, with focal depth varying from 1.3 to 31 km and epicentral distances less than 65 km. We studied the frequency and lapse time dependence of coda-wave attenuation through the variation of coda window length of 20, 30 and 35 s for seven frequency bands in the range of 1.5–24 Hz. The obtained average Qc increases with increasing coda window length, implying an increase in sampled depth. The Qc of horizontal components (N and E) are slightly lower than the Qc of the vertical component (Z). The obtained low values of Qc and high values of frequency-dependent parameter n indicate that the penetration depth that consists of the crust and part of the upper mantle beneath the Algiers region is seismically active with a high level of heterogeneity. The average frequency-dependent Qc values in the three directions are QcZ = (69.76 ± 2.98)f(0.82 ± 0.01), QcN = (60.2 ± 4.86)f(0.88 ± 0.03) and QcE = (59.63 ± 5.07)f(0.88 ± 0.03) with a coda window length of 20 s in which the penetration depth is 56.2 km and the covered area is 8141 $ km^{2} $. Attenuation (dpeaa)DE-He213 Northern Algeria (dpeaa)DE-He213 coda-wave (dpeaa)DE-He213 single backscattering model (dpeaa)DE-He213 Airouche, Abdelhalim (orcid)0000-0002-8713-3505 aut Abbes, Khadidja (orcid)0000-0002-5667-1810 aut Mehiaoui, Mahdia Y. (orcid)0000-0003-0014-4402 aut Bensalem, Rabah (orcid)0000-0002-0202-4466 aut Enthalten in Pure and applied geophysics Basel : Birkhäuser, 1939 179(2022), 3 vom: 28. Feb., Seite 1011-1035 (DE-627)265506743 (DE-600)1464028-4 1420-9136 nnns volume:179 year:2022 number:3 day:28 month:02 pages:1011-1035 https://dx.doi.org/10.1007/s00024-022-02974-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 179 2022 3 28 02 1011-1035 |
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10.1007/s00024-022-02974-5 doi (DE-627)SPR046739637 (SPR)s00024-022-02974-5-e DE-627 ger DE-627 rakwb eng Benkaci, Nassima verfasserin (orcid)0000-0001-6783-9837 aut Attenuation of Seismic Coda-Waves in Algeria: Algiers Vicinity and Mitidja Basin 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2022 Abstract A single backscattering method is used to estimate coda quality factor functions (Qc) from coda-wave attenuation for the Algiers vicinity and eastern part of the Mitidja Basin. The frequency-dependent Qc relation is determined using a high-quality data set with good signal-to-noise ratios (SNR > 5) of 228 accelerogram waveforms of local earthquakes in the magnitude range 2.3–5.3, with focal depth varying from 1.3 to 31 km and epicentral distances less than 65 km. We studied the frequency and lapse time dependence of coda-wave attenuation through the variation of coda window length of 20, 30 and 35 s for seven frequency bands in the range of 1.5–24 Hz. The obtained average Qc increases with increasing coda window length, implying an increase in sampled depth. The Qc of horizontal components (N and E) are slightly lower than the Qc of the vertical component (Z). The obtained low values of Qc and high values of frequency-dependent parameter n indicate that the penetration depth that consists of the crust and part of the upper mantle beneath the Algiers region is seismically active with a high level of heterogeneity. The average frequency-dependent Qc values in the three directions are QcZ = (69.76 ± 2.98)f(0.82 ± 0.01), QcN = (60.2 ± 4.86)f(0.88 ± 0.03) and QcE = (59.63 ± 5.07)f(0.88 ± 0.03) with a coda window length of 20 s in which the penetration depth is 56.2 km and the covered area is 8141 $ km^{2} $. Attenuation (dpeaa)DE-He213 Northern Algeria (dpeaa)DE-He213 coda-wave (dpeaa)DE-He213 single backscattering model (dpeaa)DE-He213 Airouche, Abdelhalim (orcid)0000-0002-8713-3505 aut Abbes, Khadidja (orcid)0000-0002-5667-1810 aut Mehiaoui, Mahdia Y. (orcid)0000-0003-0014-4402 aut Bensalem, Rabah (orcid)0000-0002-0202-4466 aut Enthalten in Pure and applied geophysics Basel : Birkhäuser, 1939 179(2022), 3 vom: 28. Feb., Seite 1011-1035 (DE-627)265506743 (DE-600)1464028-4 1420-9136 nnns volume:179 year:2022 number:3 day:28 month:02 pages:1011-1035 https://dx.doi.org/10.1007/s00024-022-02974-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 179 2022 3 28 02 1011-1035 |
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10.1007/s00024-022-02974-5 doi (DE-627)SPR046739637 (SPR)s00024-022-02974-5-e DE-627 ger DE-627 rakwb eng Benkaci, Nassima verfasserin (orcid)0000-0001-6783-9837 aut Attenuation of Seismic Coda-Waves in Algeria: Algiers Vicinity and Mitidja Basin 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2022 Abstract A single backscattering method is used to estimate coda quality factor functions (Qc) from coda-wave attenuation for the Algiers vicinity and eastern part of the Mitidja Basin. The frequency-dependent Qc relation is determined using a high-quality data set with good signal-to-noise ratios (SNR > 5) of 228 accelerogram waveforms of local earthquakes in the magnitude range 2.3–5.3, with focal depth varying from 1.3 to 31 km and epicentral distances less than 65 km. We studied the frequency and lapse time dependence of coda-wave attenuation through the variation of coda window length of 20, 30 and 35 s for seven frequency bands in the range of 1.5–24 Hz. The obtained average Qc increases with increasing coda window length, implying an increase in sampled depth. The Qc of horizontal components (N and E) are slightly lower than the Qc of the vertical component (Z). The obtained low values of Qc and high values of frequency-dependent parameter n indicate that the penetration depth that consists of the crust and part of the upper mantle beneath the Algiers region is seismically active with a high level of heterogeneity. The average frequency-dependent Qc values in the three directions are QcZ = (69.76 ± 2.98)f(0.82 ± 0.01), QcN = (60.2 ± 4.86)f(0.88 ± 0.03) and QcE = (59.63 ± 5.07)f(0.88 ± 0.03) with a coda window length of 20 s in which the penetration depth is 56.2 km and the covered area is 8141 $ km^{2} $. Attenuation (dpeaa)DE-He213 Northern Algeria (dpeaa)DE-He213 coda-wave (dpeaa)DE-He213 single backscattering model (dpeaa)DE-He213 Airouche, Abdelhalim (orcid)0000-0002-8713-3505 aut Abbes, Khadidja (orcid)0000-0002-5667-1810 aut Mehiaoui, Mahdia Y. (orcid)0000-0003-0014-4402 aut Bensalem, Rabah (orcid)0000-0002-0202-4466 aut Enthalten in Pure and applied geophysics Basel : Birkhäuser, 1939 179(2022), 3 vom: 28. Feb., Seite 1011-1035 (DE-627)265506743 (DE-600)1464028-4 1420-9136 nnns volume:179 year:2022 number:3 day:28 month:02 pages:1011-1035 https://dx.doi.org/10.1007/s00024-022-02974-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 179 2022 3 28 02 1011-1035 |
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10.1007/s00024-022-02974-5 doi (DE-627)SPR046739637 (SPR)s00024-022-02974-5-e DE-627 ger DE-627 rakwb eng Benkaci, Nassima verfasserin (orcid)0000-0001-6783-9837 aut Attenuation of Seismic Coda-Waves in Algeria: Algiers Vicinity and Mitidja Basin 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2022 Abstract A single backscattering method is used to estimate coda quality factor functions (Qc) from coda-wave attenuation for the Algiers vicinity and eastern part of the Mitidja Basin. The frequency-dependent Qc relation is determined using a high-quality data set with good signal-to-noise ratios (SNR > 5) of 228 accelerogram waveforms of local earthquakes in the magnitude range 2.3–5.3, with focal depth varying from 1.3 to 31 km and epicentral distances less than 65 km. We studied the frequency and lapse time dependence of coda-wave attenuation through the variation of coda window length of 20, 30 and 35 s for seven frequency bands in the range of 1.5–24 Hz. The obtained average Qc increases with increasing coda window length, implying an increase in sampled depth. The Qc of horizontal components (N and E) are slightly lower than the Qc of the vertical component (Z). The obtained low values of Qc and high values of frequency-dependent parameter n indicate that the penetration depth that consists of the crust and part of the upper mantle beneath the Algiers region is seismically active with a high level of heterogeneity. The average frequency-dependent Qc values in the three directions are QcZ = (69.76 ± 2.98)f(0.82 ± 0.01), QcN = (60.2 ± 4.86)f(0.88 ± 0.03) and QcE = (59.63 ± 5.07)f(0.88 ± 0.03) with a coda window length of 20 s in which the penetration depth is 56.2 km and the covered area is 8141 $ km^{2} $. Attenuation (dpeaa)DE-He213 Northern Algeria (dpeaa)DE-He213 coda-wave (dpeaa)DE-He213 single backscattering model (dpeaa)DE-He213 Airouche, Abdelhalim (orcid)0000-0002-8713-3505 aut Abbes, Khadidja (orcid)0000-0002-5667-1810 aut Mehiaoui, Mahdia Y. (orcid)0000-0003-0014-4402 aut Bensalem, Rabah (orcid)0000-0002-0202-4466 aut Enthalten in Pure and applied geophysics Basel : Birkhäuser, 1939 179(2022), 3 vom: 28. Feb., Seite 1011-1035 (DE-627)265506743 (DE-600)1464028-4 1420-9136 nnns volume:179 year:2022 number:3 day:28 month:02 pages:1011-1035 https://dx.doi.org/10.1007/s00024-022-02974-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 179 2022 3 28 02 1011-1035 |
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10.1007/s00024-022-02974-5 doi (DE-627)SPR046739637 (SPR)s00024-022-02974-5-e DE-627 ger DE-627 rakwb eng Benkaci, Nassima verfasserin (orcid)0000-0001-6783-9837 aut Attenuation of Seismic Coda-Waves in Algeria: Algiers Vicinity and Mitidja Basin 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2022 Abstract A single backscattering method is used to estimate coda quality factor functions (Qc) from coda-wave attenuation for the Algiers vicinity and eastern part of the Mitidja Basin. The frequency-dependent Qc relation is determined using a high-quality data set with good signal-to-noise ratios (SNR > 5) of 228 accelerogram waveforms of local earthquakes in the magnitude range 2.3–5.3, with focal depth varying from 1.3 to 31 km and epicentral distances less than 65 km. We studied the frequency and lapse time dependence of coda-wave attenuation through the variation of coda window length of 20, 30 and 35 s for seven frequency bands in the range of 1.5–24 Hz. The obtained average Qc increases with increasing coda window length, implying an increase in sampled depth. The Qc of horizontal components (N and E) are slightly lower than the Qc of the vertical component (Z). The obtained low values of Qc and high values of frequency-dependent parameter n indicate that the penetration depth that consists of the crust and part of the upper mantle beneath the Algiers region is seismically active with a high level of heterogeneity. The average frequency-dependent Qc values in the three directions are QcZ = (69.76 ± 2.98)f(0.82 ± 0.01), QcN = (60.2 ± 4.86)f(0.88 ± 0.03) and QcE = (59.63 ± 5.07)f(0.88 ± 0.03) with a coda window length of 20 s in which the penetration depth is 56.2 km and the covered area is 8141 $ km^{2} $. Attenuation (dpeaa)DE-He213 Northern Algeria (dpeaa)DE-He213 coda-wave (dpeaa)DE-He213 single backscattering model (dpeaa)DE-He213 Airouche, Abdelhalim (orcid)0000-0002-8713-3505 aut Abbes, Khadidja (orcid)0000-0002-5667-1810 aut Mehiaoui, Mahdia Y. (orcid)0000-0003-0014-4402 aut Bensalem, Rabah (orcid)0000-0002-0202-4466 aut Enthalten in Pure and applied geophysics Basel : Birkhäuser, 1939 179(2022), 3 vom: 28. Feb., Seite 1011-1035 (DE-627)265506743 (DE-600)1464028-4 1420-9136 nnns volume:179 year:2022 number:3 day:28 month:02 pages:1011-1035 https://dx.doi.org/10.1007/s00024-022-02974-5 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_381 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4328 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 179 2022 3 28 02 1011-1035 |
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Enthalten in Pure and applied geophysics 179(2022), 3 vom: 28. Feb., Seite 1011-1035 volume:179 year:2022 number:3 day:28 month:02 pages:1011-1035 |
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Enthalten in Pure and applied geophysics 179(2022), 3 vom: 28. Feb., Seite 1011-1035 volume:179 year:2022 number:3 day:28 month:02 pages:1011-1035 |
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Attenuation Northern Algeria coda-wave single backscattering model |
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Benkaci, Nassima @@aut@@ Airouche, Abdelhalim @@aut@@ Abbes, Khadidja @@aut@@ Mehiaoui, Mahdia Y. @@aut@@ Bensalem, Rabah @@aut@@ |
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The frequency-dependent Qc relation is determined using a high-quality data set with good signal-to-noise ratios (SNR > 5) of 228 accelerogram waveforms of local earthquakes in the magnitude range 2.3–5.3, with focal depth varying from 1.3 to 31 km and epicentral distances less than 65 km. We studied the frequency and lapse time dependence of coda-wave attenuation through the variation of coda window length of 20, 30 and 35 s for seven frequency bands in the range of 1.5–24 Hz. The obtained average Qc increases with increasing coda window length, implying an increase in sampled depth. The Qc of horizontal components (N and E) are slightly lower than the Qc of the vertical component (Z). The obtained low values of Qc and high values of frequency-dependent parameter n indicate that the penetration depth that consists of the crust and part of the upper mantle beneath the Algiers region is seismically active with a high level of heterogeneity. The average frequency-dependent Qc values in the three directions are QcZ = (69.76 ± 2.98)f(0.82 ± 0.01), QcN = (60.2 ± 4.86)f(0.88 ± 0.03) and QcE = (59.63 ± 5.07)f(0.88 ± 0.03) with a coda window length of 20 s in which the penetration depth is 56.2 km and the covered area is 8141 $ km^{2} $.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Attenuation</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Northern Algeria</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">coda-wave</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">single backscattering model</subfield><subfield code="7">(dpeaa)DE-He213</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Airouche, Abdelhalim</subfield><subfield code="0">(orcid)0000-0002-8713-3505</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Abbes, Khadidja</subfield><subfield code="0">(orcid)0000-0002-5667-1810</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Mehiaoui, Mahdia Y.</subfield><subfield code="0">(orcid)0000-0003-0014-4402</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Bensalem, Rabah</subfield><subfield code="0">(orcid)0000-0002-0202-4466</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Pure and applied geophysics</subfield><subfield code="d">Basel : Birkhäuser, 1939</subfield><subfield code="g">179(2022), 3 vom: 28. 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Benkaci, Nassima |
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Benkaci, Nassima misc Attenuation misc Northern Algeria misc coda-wave misc single backscattering model Attenuation of Seismic Coda-Waves in Algeria: Algiers Vicinity and Mitidja Basin |
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Attenuation of Seismic Coda-Waves in Algeria: Algiers Vicinity and Mitidja Basin Attenuation (dpeaa)DE-He213 Northern Algeria (dpeaa)DE-He213 coda-wave (dpeaa)DE-He213 single backscattering model (dpeaa)DE-He213 |
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Attenuation of Seismic Coda-Waves in Algeria: Algiers Vicinity and Mitidja Basin |
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Attenuation of Seismic Coda-Waves in Algeria: Algiers Vicinity and Mitidja Basin |
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Benkaci, Nassima |
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Benkaci, Nassima Airouche, Abdelhalim Abbes, Khadidja Mehiaoui, Mahdia Y. Bensalem, Rabah |
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attenuation of seismic coda-waves in algeria: algiers vicinity and mitidja basin |
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Attenuation of Seismic Coda-Waves in Algeria: Algiers Vicinity and Mitidja Basin |
| abstract |
Abstract A single backscattering method is used to estimate coda quality factor functions (Qc) from coda-wave attenuation for the Algiers vicinity and eastern part of the Mitidja Basin. The frequency-dependent Qc relation is determined using a high-quality data set with good signal-to-noise ratios (SNR > 5) of 228 accelerogram waveforms of local earthquakes in the magnitude range 2.3–5.3, with focal depth varying from 1.3 to 31 km and epicentral distances less than 65 km. We studied the frequency and lapse time dependence of coda-wave attenuation through the variation of coda window length of 20, 30 and 35 s for seven frequency bands in the range of 1.5–24 Hz. The obtained average Qc increases with increasing coda window length, implying an increase in sampled depth. The Qc of horizontal components (N and E) are slightly lower than the Qc of the vertical component (Z). The obtained low values of Qc and high values of frequency-dependent parameter n indicate that the penetration depth that consists of the crust and part of the upper mantle beneath the Algiers region is seismically active with a high level of heterogeneity. The average frequency-dependent Qc values in the three directions are QcZ = (69.76 ± 2.98)f(0.82 ± 0.01), QcN = (60.2 ± 4.86)f(0.88 ± 0.03) and QcE = (59.63 ± 5.07)f(0.88 ± 0.03) with a coda window length of 20 s in which the penetration depth is 56.2 km and the covered area is 8141 $ km^{2} $. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2022 |
| abstractGer |
Abstract A single backscattering method is used to estimate coda quality factor functions (Qc) from coda-wave attenuation for the Algiers vicinity and eastern part of the Mitidja Basin. The frequency-dependent Qc relation is determined using a high-quality data set with good signal-to-noise ratios (SNR > 5) of 228 accelerogram waveforms of local earthquakes in the magnitude range 2.3–5.3, with focal depth varying from 1.3 to 31 km and epicentral distances less than 65 km. We studied the frequency and lapse time dependence of coda-wave attenuation through the variation of coda window length of 20, 30 and 35 s for seven frequency bands in the range of 1.5–24 Hz. The obtained average Qc increases with increasing coda window length, implying an increase in sampled depth. The Qc of horizontal components (N and E) are slightly lower than the Qc of the vertical component (Z). The obtained low values of Qc and high values of frequency-dependent parameter n indicate that the penetration depth that consists of the crust and part of the upper mantle beneath the Algiers region is seismically active with a high level of heterogeneity. The average frequency-dependent Qc values in the three directions are QcZ = (69.76 ± 2.98)f(0.82 ± 0.01), QcN = (60.2 ± 4.86)f(0.88 ± 0.03) and QcE = (59.63 ± 5.07)f(0.88 ± 0.03) with a coda window length of 20 s in which the penetration depth is 56.2 km and the covered area is 8141 $ km^{2} $. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2022 |
| abstract_unstemmed |
Abstract A single backscattering method is used to estimate coda quality factor functions (Qc) from coda-wave attenuation for the Algiers vicinity and eastern part of the Mitidja Basin. The frequency-dependent Qc relation is determined using a high-quality data set with good signal-to-noise ratios (SNR > 5) of 228 accelerogram waveforms of local earthquakes in the magnitude range 2.3–5.3, with focal depth varying from 1.3 to 31 km and epicentral distances less than 65 km. We studied the frequency and lapse time dependence of coda-wave attenuation through the variation of coda window length of 20, 30 and 35 s for seven frequency bands in the range of 1.5–24 Hz. The obtained average Qc increases with increasing coda window length, implying an increase in sampled depth. The Qc of horizontal components (N and E) are slightly lower than the Qc of the vertical component (Z). The obtained low values of Qc and high values of frequency-dependent parameter n indicate that the penetration depth that consists of the crust and part of the upper mantle beneath the Algiers region is seismically active with a high level of heterogeneity. The average frequency-dependent Qc values in the three directions are QcZ = (69.76 ± 2.98)f(0.82 ± 0.01), QcN = (60.2 ± 4.86)f(0.88 ± 0.03) and QcE = (59.63 ± 5.07)f(0.88 ± 0.03) with a coda window length of 20 s in which the penetration depth is 56.2 km and the covered area is 8141 $ km^{2} $. © The Author(s), under exclusive licence to Springer Nature Switzerland AG 2022 |
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| title_short |
Attenuation of Seismic Coda-Waves in Algeria: Algiers Vicinity and Mitidja Basin |
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https://dx.doi.org/10.1007/s00024-022-02974-5 |
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Airouche, Abdelhalim Abbes, Khadidja Mehiaoui, Mahdia Y. Bensalem, Rabah |
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Airouche, Abdelhalim Abbes, Khadidja Mehiaoui, Mahdia Y. Bensalem, Rabah |
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10.1007/s00024-022-02974-5 |
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2024-07-04T00:10:04.684Z |
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| score |
7.402767 |