Temporal variations in volumetric magma eruption rates of Quaternary volcanoes in Japan
Abstract Long-term evaluations of hazard and risk related to volcanoes rely on extrapolations from volcano histories, including the uniformity of their eruption rates. We calculated volumetric magma eruption rates, compiled from quantitative eruption histories of 29 Japanese Quaternary volcanoes, an...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SpringerOpen
2018-04-01
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| Series: | Earth, Planets and Space |
| Subjects: | |
| Online Access: | http://link.springer.com/article/10.1186/s40623-018-0849-x |
| _version_ | 1818141172254638080 |
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| author | Takahiro Yamamoto Takashi Kudo Osamu Isizuka |
| author_facet | Takahiro Yamamoto Takashi Kudo Osamu Isizuka |
| author_sort | Takahiro Yamamoto |
| collection | DOAJ |
| description | Abstract Long-term evaluations of hazard and risk related to volcanoes rely on extrapolations from volcano histories, including the uniformity of their eruption rates. We calculated volumetric magma eruption rates, compiled from quantitative eruption histories of 29 Japanese Quaternary volcanoes, and analyzed them with respect to durations spanning 101–105 years. Calculated eruption rates vary greatly (101–10−4 km3 dense-rock equivalent/1000 years) between individual volcanoes. Although large basaltic stratovolcanoes tend to have high eruption rates and relatively constant repose intervals, these cases are not representative of the various types of volcanoes in Japan. At many Japanese volcanoes, eruption rates are not constant through time, but increase, decrease, or fluctuate. Therefore, it is important to predict whether eruption rates will increase or decrease for long-term risk assessment. Several temporal co-variations of eruption rate and magmatic evolution suggest that there are connections between them. In some cases, magma supply rates increased in response to changing magma-generation processes. On the other hand, stable plumbing systems without marked changes in magma composition show decreasing eruption rates through time. |
| first_indexed | 2024-12-11T10:55:39Z |
| format | Article |
| id | doaj.art-df1ca1ecbe454a488d2c9e705a434f4b |
| institution | Directory Open Access Journal |
| issn | 1880-5981 |
| language | English |
| last_indexed | 2024-12-11T10:55:39Z |
| publishDate | 2018-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Earth, Planets and Space |
| spelling | doaj.art-df1ca1ecbe454a488d2c9e705a434f4b2022-12-22T01:10:06ZengSpringerOpenEarth, Planets and Space1880-59812018-04-0170111210.1186/s40623-018-0849-xTemporal variations in volumetric magma eruption rates of Quaternary volcanoes in JapanTakahiro Yamamoto0Takashi Kudo1Osamu Isizuka2Geological Survey of Japan, AISTGeological Survey of Japan, AISTGeological Survey of Japan, AISTAbstract Long-term evaluations of hazard and risk related to volcanoes rely on extrapolations from volcano histories, including the uniformity of their eruption rates. We calculated volumetric magma eruption rates, compiled from quantitative eruption histories of 29 Japanese Quaternary volcanoes, and analyzed them with respect to durations spanning 101–105 years. Calculated eruption rates vary greatly (101–10−4 km3 dense-rock equivalent/1000 years) between individual volcanoes. Although large basaltic stratovolcanoes tend to have high eruption rates and relatively constant repose intervals, these cases are not representative of the various types of volcanoes in Japan. At many Japanese volcanoes, eruption rates are not constant through time, but increase, decrease, or fluctuate. Therefore, it is important to predict whether eruption rates will increase or decrease for long-term risk assessment. Several temporal co-variations of eruption rate and magmatic evolution suggest that there are connections between them. In some cases, magma supply rates increased in response to changing magma-generation processes. On the other hand, stable plumbing systems without marked changes in magma composition show decreasing eruption rates through time.http://link.springer.com/article/10.1186/s40623-018-0849-xEruption rateMagma-discharge step diagramQuaternary volcanoJapan |
| spellingShingle | Takahiro Yamamoto Takashi Kudo Osamu Isizuka Temporal variations in volumetric magma eruption rates of Quaternary volcanoes in Japan Earth, Planets and Space Eruption rate Magma-discharge step diagram Quaternary volcano Japan |
| title | Temporal variations in volumetric magma eruption rates of Quaternary volcanoes in Japan |
| title_full | Temporal variations in volumetric magma eruption rates of Quaternary volcanoes in Japan |
| title_fullStr | Temporal variations in volumetric magma eruption rates of Quaternary volcanoes in Japan |
| title_full_unstemmed | Temporal variations in volumetric magma eruption rates of Quaternary volcanoes in Japan |
| title_short | Temporal variations in volumetric magma eruption rates of Quaternary volcanoes in Japan |
| title_sort | temporal variations in volumetric magma eruption rates of quaternary volcanoes in japan |
| topic | Eruption rate Magma-discharge step diagram Quaternary volcano Japan |
| url | http://link.springer.com/article/10.1186/s40623-018-0849-x |
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