Seismicity and magma supply rate of the 1998 failed eruption at Iwate volcano, Japan
Abstract Iwate volcano, Japan, showed significant volcanic activity including earthquake swarms and volcano inflation from the beginning of 1998. A large earthquake of magnitude 6.1 hit the south-west of the volcano on September 3. Although a 1 $ km^{2} $ fumarole field formed, blighting plants on t...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Nishimura, Takeshi [verfasserIn] |
|---|
| Format: |
Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
2011 |
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| Schlagwörter: |
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| Anmerkung: |
© Springer-Verlag 2011 |
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| Übergeordnetes Werk: |
Enthalten in: Bulletin of volcanology - Springer-Verlag, 1986, 73(2011), 2 vom: 18. Feb., Seite 133-142 |
|---|---|
| Übergeordnetes Werk: |
volume:73 ; year:2011 ; number:2 ; day:18 ; month:02 ; pages:133-142 |
| Links: |
|---|
| DOI / URN: |
10.1007/s00445-010-0438-8 |
|---|
| Katalog-ID: |
OLC2054803111 |
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| 520 | |a Abstract Iwate volcano, Japan, showed significant volcanic activity including earthquake swarms and volcano inflation from the beginning of 1998. A large earthquake of magnitude 6.1 hit the south-west of the volcano on September 3. Although a 1 $ km^{2} $ fumarole field formed, blighting plants on the ridge in the western part of the volcano in the spring of 1999, no magmatic eruptions occurred. We reconcile the spatio-temporal distributions of volcanic pressure sources determined by previously reported studies in which GPS, strain and tilt data from dense geodetic station networks are analyzed (Miura et al. Earth Planet Space 52:1003–1008, 2000; Sato and Hamaguchi J Volcanol Geotherm Res 155:244–262, 2006). We calculate the magma supply rates from their results and compare them with the occurrence rates of volcanic earthquakes. The results show that the magma supply rates are almost constant or even decrease with time while the earthquake occurrence rate increases with time. This contrast in their temporal changes is interpreted to result from stress accumulation in the volcanic edifice caused by constant magma supply without effusion of magma to the surface. We further show that data showing slight acceleration in strain can be best explained by magma ascent at a constant velocity, and that there is no evidence for increased magma buoyancy resulting from gas bubble growth. This consideration supports the interpretation that the magma stayed at 2 km depth and horizontally migrated. These findings relating magma supply rate and seismicity to magma ascent process are clues to understanding why no magmatic eruption occurred at Iwate volcano in 1998. | ||
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10.1007/s00445-010-0438-8 doi (DE-627)OLC2054803111 (DE-He213)s00445-010-0438-8-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ Nishimura, Takeshi verfasserin aut Seismicity and magma supply rate of the 1998 failed eruption at Iwate volcano, Japan 2011 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2011 Abstract Iwate volcano, Japan, showed significant volcanic activity including earthquake swarms and volcano inflation from the beginning of 1998. A large earthquake of magnitude 6.1 hit the south-west of the volcano on September 3. Although a 1 $ km^{2} $ fumarole field formed, blighting plants on the ridge in the western part of the volcano in the spring of 1999, no magmatic eruptions occurred. We reconcile the spatio-temporal distributions of volcanic pressure sources determined by previously reported studies in which GPS, strain and tilt data from dense geodetic station networks are analyzed (Miura et al. Earth Planet Space 52:1003–1008, 2000; Sato and Hamaguchi J Volcanol Geotherm Res 155:244–262, 2006). We calculate the magma supply rates from their results and compare them with the occurrence rates of volcanic earthquakes. The results show that the magma supply rates are almost constant or even decrease with time while the earthquake occurrence rate increases with time. This contrast in their temporal changes is interpreted to result from stress accumulation in the volcanic edifice caused by constant magma supply without effusion of magma to the surface. We further show that data showing slight acceleration in strain can be best explained by magma ascent at a constant velocity, and that there is no evidence for increased magma buoyancy resulting from gas bubble growth. This consideration supports the interpretation that the magma stayed at 2 km depth and horizontally migrated. These findings relating magma supply rate and seismicity to magma ascent process are clues to understanding why no magmatic eruption occurred at Iwate volcano in 1998. Magma ascent Volcano inflation Strain Gas bubble growth Out gassing Buoyancy Ueki, Sadato aut Enthalten in Bulletin of volcanology Springer-Verlag, 1986 73(2011), 2 vom: 18. Feb., Seite 133-142 (DE-627)130428833 (DE-600)635594-8 (DE-576)015927865 0258-8900 nnns volume:73 year:2011 number:2 day:18 month:02 pages:133-142 https://doi.org/10.1007/s00445-010-0438-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GEO SSG-OPC-GGO GBV_ILN_40 GBV_ILN_267 GBV_ILN_285 GBV_ILN_381 GBV_ILN_2018 GBV_ILN_4112 GBV_ILN_4277 GBV_ILN_4323 AR 73 2011 2 18 02 133-142 |
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10.1007/s00445-010-0438-8 doi (DE-627)OLC2054803111 (DE-He213)s00445-010-0438-8-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ Nishimura, Takeshi verfasserin aut Seismicity and magma supply rate of the 1998 failed eruption at Iwate volcano, Japan 2011 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2011 Abstract Iwate volcano, Japan, showed significant volcanic activity including earthquake swarms and volcano inflation from the beginning of 1998. A large earthquake of magnitude 6.1 hit the south-west of the volcano on September 3. Although a 1 $ km^{2} $ fumarole field formed, blighting plants on the ridge in the western part of the volcano in the spring of 1999, no magmatic eruptions occurred. We reconcile the spatio-temporal distributions of volcanic pressure sources determined by previously reported studies in which GPS, strain and tilt data from dense geodetic station networks are analyzed (Miura et al. Earth Planet Space 52:1003–1008, 2000; Sato and Hamaguchi J Volcanol Geotherm Res 155:244–262, 2006). We calculate the magma supply rates from their results and compare them with the occurrence rates of volcanic earthquakes. The results show that the magma supply rates are almost constant or even decrease with time while the earthquake occurrence rate increases with time. This contrast in their temporal changes is interpreted to result from stress accumulation in the volcanic edifice caused by constant magma supply without effusion of magma to the surface. We further show that data showing slight acceleration in strain can be best explained by magma ascent at a constant velocity, and that there is no evidence for increased magma buoyancy resulting from gas bubble growth. This consideration supports the interpretation that the magma stayed at 2 km depth and horizontally migrated. These findings relating magma supply rate and seismicity to magma ascent process are clues to understanding why no magmatic eruption occurred at Iwate volcano in 1998. Magma ascent Volcano inflation Strain Gas bubble growth Out gassing Buoyancy Ueki, Sadato aut Enthalten in Bulletin of volcanology Springer-Verlag, 1986 73(2011), 2 vom: 18. Feb., Seite 133-142 (DE-627)130428833 (DE-600)635594-8 (DE-576)015927865 0258-8900 nnns volume:73 year:2011 number:2 day:18 month:02 pages:133-142 https://doi.org/10.1007/s00445-010-0438-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GEO SSG-OPC-GGO GBV_ILN_40 GBV_ILN_267 GBV_ILN_285 GBV_ILN_381 GBV_ILN_2018 GBV_ILN_4112 GBV_ILN_4277 GBV_ILN_4323 AR 73 2011 2 18 02 133-142 |
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10.1007/s00445-010-0438-8 doi (DE-627)OLC2054803111 (DE-He213)s00445-010-0438-8-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ Nishimura, Takeshi verfasserin aut Seismicity and magma supply rate of the 1998 failed eruption at Iwate volcano, Japan 2011 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2011 Abstract Iwate volcano, Japan, showed significant volcanic activity including earthquake swarms and volcano inflation from the beginning of 1998. A large earthquake of magnitude 6.1 hit the south-west of the volcano on September 3. Although a 1 $ km^{2} $ fumarole field formed, blighting plants on the ridge in the western part of the volcano in the spring of 1999, no magmatic eruptions occurred. We reconcile the spatio-temporal distributions of volcanic pressure sources determined by previously reported studies in which GPS, strain and tilt data from dense geodetic station networks are analyzed (Miura et al. Earth Planet Space 52:1003–1008, 2000; Sato and Hamaguchi J Volcanol Geotherm Res 155:244–262, 2006). We calculate the magma supply rates from their results and compare them with the occurrence rates of volcanic earthquakes. The results show that the magma supply rates are almost constant or even decrease with time while the earthquake occurrence rate increases with time. This contrast in their temporal changes is interpreted to result from stress accumulation in the volcanic edifice caused by constant magma supply without effusion of magma to the surface. We further show that data showing slight acceleration in strain can be best explained by magma ascent at a constant velocity, and that there is no evidence for increased magma buoyancy resulting from gas bubble growth. This consideration supports the interpretation that the magma stayed at 2 km depth and horizontally migrated. These findings relating magma supply rate and seismicity to magma ascent process are clues to understanding why no magmatic eruption occurred at Iwate volcano in 1998. Magma ascent Volcano inflation Strain Gas bubble growth Out gassing Buoyancy Ueki, Sadato aut Enthalten in Bulletin of volcanology Springer-Verlag, 1986 73(2011), 2 vom: 18. Feb., Seite 133-142 (DE-627)130428833 (DE-600)635594-8 (DE-576)015927865 0258-8900 nnns volume:73 year:2011 number:2 day:18 month:02 pages:133-142 https://doi.org/10.1007/s00445-010-0438-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GEO SSG-OPC-GGO GBV_ILN_40 GBV_ILN_267 GBV_ILN_285 GBV_ILN_381 GBV_ILN_2018 GBV_ILN_4112 GBV_ILN_4277 GBV_ILN_4323 AR 73 2011 2 18 02 133-142 |
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10.1007/s00445-010-0438-8 doi (DE-627)OLC2054803111 (DE-He213)s00445-010-0438-8-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ Nishimura, Takeshi verfasserin aut Seismicity and magma supply rate of the 1998 failed eruption at Iwate volcano, Japan 2011 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2011 Abstract Iwate volcano, Japan, showed significant volcanic activity including earthquake swarms and volcano inflation from the beginning of 1998. A large earthquake of magnitude 6.1 hit the south-west of the volcano on September 3. Although a 1 $ km^{2} $ fumarole field formed, blighting plants on the ridge in the western part of the volcano in the spring of 1999, no magmatic eruptions occurred. We reconcile the spatio-temporal distributions of volcanic pressure sources determined by previously reported studies in which GPS, strain and tilt data from dense geodetic station networks are analyzed (Miura et al. Earth Planet Space 52:1003–1008, 2000; Sato and Hamaguchi J Volcanol Geotherm Res 155:244–262, 2006). We calculate the magma supply rates from their results and compare them with the occurrence rates of volcanic earthquakes. The results show that the magma supply rates are almost constant or even decrease with time while the earthquake occurrence rate increases with time. This contrast in their temporal changes is interpreted to result from stress accumulation in the volcanic edifice caused by constant magma supply without effusion of magma to the surface. We further show that data showing slight acceleration in strain can be best explained by magma ascent at a constant velocity, and that there is no evidence for increased magma buoyancy resulting from gas bubble growth. This consideration supports the interpretation that the magma stayed at 2 km depth and horizontally migrated. These findings relating magma supply rate and seismicity to magma ascent process are clues to understanding why no magmatic eruption occurred at Iwate volcano in 1998. Magma ascent Volcano inflation Strain Gas bubble growth Out gassing Buoyancy Ueki, Sadato aut Enthalten in Bulletin of volcanology Springer-Verlag, 1986 73(2011), 2 vom: 18. Feb., Seite 133-142 (DE-627)130428833 (DE-600)635594-8 (DE-576)015927865 0258-8900 nnns volume:73 year:2011 number:2 day:18 month:02 pages:133-142 https://doi.org/10.1007/s00445-010-0438-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GEO SSG-OPC-GGO GBV_ILN_40 GBV_ILN_267 GBV_ILN_285 GBV_ILN_381 GBV_ILN_2018 GBV_ILN_4112 GBV_ILN_4277 GBV_ILN_4323 AR 73 2011 2 18 02 133-142 |
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10.1007/s00445-010-0438-8 doi (DE-627)OLC2054803111 (DE-He213)s00445-010-0438-8-p DE-627 ger DE-627 rakwb eng 550 VZ 550 VZ Nishimura, Takeshi verfasserin aut Seismicity and magma supply rate of the 1998 failed eruption at Iwate volcano, Japan 2011 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer-Verlag 2011 Abstract Iwate volcano, Japan, showed significant volcanic activity including earthquake swarms and volcano inflation from the beginning of 1998. A large earthquake of magnitude 6.1 hit the south-west of the volcano on September 3. Although a 1 $ km^{2} $ fumarole field formed, blighting plants on the ridge in the western part of the volcano in the spring of 1999, no magmatic eruptions occurred. We reconcile the spatio-temporal distributions of volcanic pressure sources determined by previously reported studies in which GPS, strain and tilt data from dense geodetic station networks are analyzed (Miura et al. Earth Planet Space 52:1003–1008, 2000; Sato and Hamaguchi J Volcanol Geotherm Res 155:244–262, 2006). We calculate the magma supply rates from their results and compare them with the occurrence rates of volcanic earthquakes. The results show that the magma supply rates are almost constant or even decrease with time while the earthquake occurrence rate increases with time. This contrast in their temporal changes is interpreted to result from stress accumulation in the volcanic edifice caused by constant magma supply without effusion of magma to the surface. We further show that data showing slight acceleration in strain can be best explained by magma ascent at a constant velocity, and that there is no evidence for increased magma buoyancy resulting from gas bubble growth. This consideration supports the interpretation that the magma stayed at 2 km depth and horizontally migrated. These findings relating magma supply rate and seismicity to magma ascent process are clues to understanding why no magmatic eruption occurred at Iwate volcano in 1998. Magma ascent Volcano inflation Strain Gas bubble growth Out gassing Buoyancy Ueki, Sadato aut Enthalten in Bulletin of volcanology Springer-Verlag, 1986 73(2011), 2 vom: 18. Feb., Seite 133-142 (DE-627)130428833 (DE-600)635594-8 (DE-576)015927865 0258-8900 nnns volume:73 year:2011 number:2 day:18 month:02 pages:133-142 https://doi.org/10.1007/s00445-010-0438-8 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GEO SSG-OPC-GGO GBV_ILN_40 GBV_ILN_267 GBV_ILN_285 GBV_ILN_381 GBV_ILN_2018 GBV_ILN_4112 GBV_ILN_4277 GBV_ILN_4323 AR 73 2011 2 18 02 133-142 |
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550 VZ Seismicity and magma supply rate of the 1998 failed eruption at Iwate volcano, Japan Magma ascent Volcano inflation Strain Gas bubble growth Out gassing Buoyancy |
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Seismicity and magma supply rate of the 1998 failed eruption at Iwate volcano, Japan |
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Seismicity and magma supply rate of the 1998 failed eruption at Iwate volcano, Japan |
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Nishimura, Takeshi |
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Nishimura, Takeshi Ueki, Sadato |
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seismicity and magma supply rate of the 1998 failed eruption at iwate volcano, japan |
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Seismicity and magma supply rate of the 1998 failed eruption at Iwate volcano, Japan |
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Abstract Iwate volcano, Japan, showed significant volcanic activity including earthquake swarms and volcano inflation from the beginning of 1998. A large earthquake of magnitude 6.1 hit the south-west of the volcano on September 3. Although a 1 $ km^{2} $ fumarole field formed, blighting plants on the ridge in the western part of the volcano in the spring of 1999, no magmatic eruptions occurred. We reconcile the spatio-temporal distributions of volcanic pressure sources determined by previously reported studies in which GPS, strain and tilt data from dense geodetic station networks are analyzed (Miura et al. Earth Planet Space 52:1003–1008, 2000; Sato and Hamaguchi J Volcanol Geotherm Res 155:244–262, 2006). We calculate the magma supply rates from their results and compare them with the occurrence rates of volcanic earthquakes. The results show that the magma supply rates are almost constant or even decrease with time while the earthquake occurrence rate increases with time. This contrast in their temporal changes is interpreted to result from stress accumulation in the volcanic edifice caused by constant magma supply without effusion of magma to the surface. We further show that data showing slight acceleration in strain can be best explained by magma ascent at a constant velocity, and that there is no evidence for increased magma buoyancy resulting from gas bubble growth. This consideration supports the interpretation that the magma stayed at 2 km depth and horizontally migrated. These findings relating magma supply rate and seismicity to magma ascent process are clues to understanding why no magmatic eruption occurred at Iwate volcano in 1998. © Springer-Verlag 2011 |
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Abstract Iwate volcano, Japan, showed significant volcanic activity including earthquake swarms and volcano inflation from the beginning of 1998. A large earthquake of magnitude 6.1 hit the south-west of the volcano on September 3. Although a 1 $ km^{2} $ fumarole field formed, blighting plants on the ridge in the western part of the volcano in the spring of 1999, no magmatic eruptions occurred. We reconcile the spatio-temporal distributions of volcanic pressure sources determined by previously reported studies in which GPS, strain and tilt data from dense geodetic station networks are analyzed (Miura et al. Earth Planet Space 52:1003–1008, 2000; Sato and Hamaguchi J Volcanol Geotherm Res 155:244–262, 2006). We calculate the magma supply rates from their results and compare them with the occurrence rates of volcanic earthquakes. The results show that the magma supply rates are almost constant or even decrease with time while the earthquake occurrence rate increases with time. This contrast in their temporal changes is interpreted to result from stress accumulation in the volcanic edifice caused by constant magma supply without effusion of magma to the surface. We further show that data showing slight acceleration in strain can be best explained by magma ascent at a constant velocity, and that there is no evidence for increased magma buoyancy resulting from gas bubble growth. This consideration supports the interpretation that the magma stayed at 2 km depth and horizontally migrated. These findings relating magma supply rate and seismicity to magma ascent process are clues to understanding why no magmatic eruption occurred at Iwate volcano in 1998. © Springer-Verlag 2011 |
| abstract_unstemmed |
Abstract Iwate volcano, Japan, showed significant volcanic activity including earthquake swarms and volcano inflation from the beginning of 1998. A large earthquake of magnitude 6.1 hit the south-west of the volcano on September 3. Although a 1 $ km^{2} $ fumarole field formed, blighting plants on the ridge in the western part of the volcano in the spring of 1999, no magmatic eruptions occurred. We reconcile the spatio-temporal distributions of volcanic pressure sources determined by previously reported studies in which GPS, strain and tilt data from dense geodetic station networks are analyzed (Miura et al. Earth Planet Space 52:1003–1008, 2000; Sato and Hamaguchi J Volcanol Geotherm Res 155:244–262, 2006). We calculate the magma supply rates from their results and compare them with the occurrence rates of volcanic earthquakes. The results show that the magma supply rates are almost constant or even decrease with time while the earthquake occurrence rate increases with time. This contrast in their temporal changes is interpreted to result from stress accumulation in the volcanic edifice caused by constant magma supply without effusion of magma to the surface. We further show that data showing slight acceleration in strain can be best explained by magma ascent at a constant velocity, and that there is no evidence for increased magma buoyancy resulting from gas bubble growth. This consideration supports the interpretation that the magma stayed at 2 km depth and horizontally migrated. These findings relating magma supply rate and seismicity to magma ascent process are clues to understanding why no magmatic eruption occurred at Iwate volcano in 1998. © Springer-Verlag 2011 |
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Seismicity and magma supply rate of the 1998 failed eruption at Iwate volcano, Japan |
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