Faculty of Science, Tohoku University/National Institute of Polar Research/Department of Earth Science, Faculty of Science, Chiba University/Earthquake Research Institute, University of Tokyo/Geophysical Institute, University of Alaska
抄録(英)
Mount Erebus is an active volcano with a persistent convecting lava lake at the summit crater, located on Ross Island, Antarctica. Since December 1980 the seismic activity of Mount Erebus has been continuously monitored using a radio-telemetered network of six seismic stations. A 50-day temporary seismic observation was also carried out in the 1982-1983 Antarctic field season. The following seismic activities were observed during this field season : 1) Explosion earthquakes accompanied with Strombolian eruptions from the lava lake occurred at a rate of 0-4 times per day which is slightly lower than the rate in the previous season; 2) an intense earthquake swarm, which is possibly related to the underground movement of magma, occurred in October 1982 near Abbott Peak, 10km northwest of the summit; 3) there were other source regions of seismicity in Ross Island, fairly distant from Mount Erebus to the east.
雑誌書誌ID
AA00733561
雑誌名
Memoirs of National Institute of Polar Research. Special issue
Seismic activity of Mount Erebus, Antarctica in 1982-1983
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KJ00000012269
(1.67MB)
概要
