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DCフィールド | 値 | 言語 |
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dc.contributor.author | 井口, 正人 | ja |
dc.contributor.author | 山田, 大志 | ja |
dc.contributor.alternative | IGUCHI, Masato | en |
dc.contributor.alternative | YAMADA, Taishi | en |
dc.date.accessioned | 2023-02-21T09:31:37Z | - |
dc.date.available | 2023-02-21T09:31:37Z | - |
dc.date.issued | 2022-12 | - |
dc.identifier.uri | http://hdl.handle.net/2433/279419 | - |
dc.description.abstract | Eruption hazard caused by volcanic bombs and volcanic ash at Suwanosejima volcano is examined using infrasound. The explosive eruption, which ejected volcanic bombs to distances around 1 km, occurred during high explosivity with infrasound larger than 200 Pa. The high explosivity accompanied only a low plume (<1500 m). Smaller (<100 Pa) infrasound pulses are successively recorded prior to the high explosivity. The frequent occurrence of infrasound pulses is classified into Type L: 1-9 days duration and minute order time interval and Type S: 1-4 hours duration and second order time interval, and it is regarded as precursor of increase in hazard due to volcanic bombs. Eruptions with plumes higher than 3000 m sometimes occurred. The amplitudes of infrasound onset pulse were much smaller than the explosive eruptions, but tremor-like vibration continued for a longer time (several minutes). Suwanosejima volcano repeats hazardous states of volcanic bombs and volcanic ash alternatively. | en |
dc.language.iso | jpn | - |
dc.publisher | 京都大学防災研究所 | ja |
dc.publisher.alternative | Disaster Prevention Research Institute, Kyoto University | en |
dc.subject | 諏訪之瀬島火山 | ja |
dc.subject | 空振 | ja |
dc.subject | 火山岩塊 | ja |
dc.subject | 火山灰 | ja |
dc.subject | Suwanosejima volcano | en |
dc.subject | infrasound | en |
dc.subject | volcanic bomb | en |
dc.subject | volcanic ash | en |
dc.subject.ndc | 519.9 | - |
dc.title | 諏訪之瀬島における空振観測から考える噴火ハザード | ja |
dc.title.alternative | Eruption Hazards Evaluated from Infrasound Observation at Suwanosejima Volcano | en |
dc.type | departmental bulletin paper | - |
dc.type.niitype | Departmental Bulletin Paper | - |
dc.identifier.ncid | AN00027784 | - |
dc.identifier.jtitle | 京都大学防災研究所年報. B | ja |
dc.identifier.volume | 65 | - |
dc.identifier.issue | B | - |
dc.identifier.spage | 97 | - |
dc.identifier.epage | 106 | - |
dc.textversion | publisher | - |
dc.sortkey | 09 | - |
dc.address | 京都大学防災研究所 | ja |
dc.address | 京都大学防災研究所 | ja |
dc.relation.url | http://www.dpri.kyoto-u.ac.jp/publications/nenpo/ | - |
dcterms.accessRights | open access | - |
dc.identifier.pissn | 0386-412X | - |
dc.identifier.jtitle-alternative | Disaster Prevention Research Institute Annuals. B | en |
出現コレクション: | Vol.65 B |
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