Seismic activity of Mount Erebus, Antarctica in 1983-1984
Mount Erebus is one of the active volcanoes in antarctica, and seismic observations of it have been made since December 1980 using a radiotelemetered network and several temporary stations. In the 1983-1984 field season, the number of the network stations was increased to eight by adding two new rad...
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Department of Earth Sciences, Faculty of Science, Chiba University/National Institute of Polar Research/Faculty of Science, Tohoku University/Earthquake Research Institute, University of Tokyo
1985
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ftnipr:oai:nipr.repo.nii.ac.jp:00001782 2023-05-15T13:47:59+02:00 Seismic activity of Mount Erebus, Antarctica in 1983-1984 Megumi Baba Katsutada Kaminuma Sadato Ueki Etsuro Koyama 1985-09 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1782 http://id.nii.ac.jp/1291/00001782/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1782&item_no=1&attribute_id=18&file_no=1 en eng Department of Earth Sciences, Faculty of Science, Chiba University/National Institute of Polar Research/Faculty of Science, Tohoku University/Earthquake Research Institute, University of Tokyo https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1782 http://id.nii.ac.jp/1291/00001782/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 37, 29-39(1985-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1782&item_no=1&attribute_id=18&file_no=1 Departmental Bulletin Paper P(論文) 1985 ftnipr 2022-11-12T19:42:34Z Mount Erebus is one of the active volcanoes in antarctica, and seismic observations of it have been made since December 1980 using a radiotelemetered network and several temporary stations. In the 1983-1984 field season, the number of the network stations was increased to eight by adding two new radio-telemetered stations. Volcanic earthquakes in and around Mount Erebus occurred at a rate of 20-160 events per day, which was almost the same rate as in the previous season. No intense earthquake swarm occurred in the 1983-1984 season. The earthquakes in this season are located wide around Mount Erebus. The clustered earthquakes have a dike-like distribution beneath the northern area of the central cone. An aseismic zone is recognized beneath the southwest area of the Erebus summit. This aseismic zone may correspond to a magma reservoir. The earthquakes which were not associated with the eruptions of Mount Erebus can be divided into several types according to their seismograms and spectra of the seismic waves. The seismic waves which may pass through the aseismic zone seem to be strongly attenuated as compared with those which may not pass through the zone. Report Antarc* Antarctica Memoirs of National Institute of Polar Research Polar Research National Institute of Polar Research Repository, Japan Mount Erebus ENVELOPE(167.167,167.167,-77.533,-77.533) |
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Open Polar |
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National Institute of Polar Research Repository, Japan |
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English |
description |
Mount Erebus is one of the active volcanoes in antarctica, and seismic observations of it have been made since December 1980 using a radiotelemetered network and several temporary stations. In the 1983-1984 field season, the number of the network stations was increased to eight by adding two new radio-telemetered stations. Volcanic earthquakes in and around Mount Erebus occurred at a rate of 20-160 events per day, which was almost the same rate as in the previous season. No intense earthquake swarm occurred in the 1983-1984 season. The earthquakes in this season are located wide around Mount Erebus. The clustered earthquakes have a dike-like distribution beneath the northern area of the central cone. An aseismic zone is recognized beneath the southwest area of the Erebus summit. This aseismic zone may correspond to a magma reservoir. The earthquakes which were not associated with the eruptions of Mount Erebus can be divided into several types according to their seismograms and spectra of the seismic waves. The seismic waves which may pass through the aseismic zone seem to be strongly attenuated as compared with those which may not pass through the zone. |
format |
Report |
author |
Megumi Baba Katsutada Kaminuma Sadato Ueki Etsuro Koyama |
spellingShingle |
Megumi Baba Katsutada Kaminuma Sadato Ueki Etsuro Koyama Seismic activity of Mount Erebus, Antarctica in 1983-1984 |
author_facet |
Megumi Baba Katsutada Kaminuma Sadato Ueki Etsuro Koyama |
author_sort |
Megumi Baba |
title |
Seismic activity of Mount Erebus, Antarctica in 1983-1984 |
title_short |
Seismic activity of Mount Erebus, Antarctica in 1983-1984 |
title_full |
Seismic activity of Mount Erebus, Antarctica in 1983-1984 |
title_fullStr |
Seismic activity of Mount Erebus, Antarctica in 1983-1984 |
title_full_unstemmed |
Seismic activity of Mount Erebus, Antarctica in 1983-1984 |
title_sort |
seismic activity of mount erebus, antarctica in 1983-1984 |
publisher |
Department of Earth Sciences, Faculty of Science, Chiba University/National Institute of Polar Research/Faculty of Science, Tohoku University/Earthquake Research Institute, University of Tokyo |
publishDate |
1985 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1782 http://id.nii.ac.jp/1291/00001782/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1782&item_no=1&attribute_id=18&file_no=1 |
long_lat |
ENVELOPE(167.167,167.167,-77.533,-77.533) |
geographic |
Mount Erebus |
geographic_facet |
Mount Erebus |
genre |
Antarc* Antarctica Memoirs of National Institute of Polar Research Polar Research |
genre_facet |
Antarc* Antarctica Memoirs of National Institute of Polar Research Polar Research |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=1782 http://id.nii.ac.jp/1291/00001782/ AA00733561 Memoirs of National Institute of Polar Research. Special issue, 37, 29-39(1985-09) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=1782&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766248308953579520 |