TY - JOUR
T1 - Earthquake swarms on Mount Erebus, Antarctica
AU - Kaminuma, Katsutada
AU - Baba, Megumi
AU - Ueki, Sadato
N1 - Funding Information:
The authorse xpressth eirt hankst o the lab-technicianosf Scott Basew ho have maintainedth e recordings ystemt hrought heir winterings easoni n 1982-1984T. he authorsa lso thank Prof. J. Kienle and Ms. C. Rowe of the GeophysicaIln stituteU, niversityo f Alaska, who are the U. S. participants in IMESS, and Prof. R. R. Dibble of VictoriaU niversityo f Wellingtonw, ho is the New Zealandp articipanitn IMESS. This work was partlys upported by the NationalI nstituteo f Polar ResearchJ,a panand the NationalS cience FoundationT.h e assistancoef Miss Yumiko Shudot hroughoutth is studyi s gratefullya cknowledged.
PY - 1986/12
Y1 - 1986/12
N2 - Mount Erebus (3794 m), located on Ross Island in McMurdo Sound, is one of the few active volcanoes in Antartica. A high-sensitivity seismic network has been operated by Japanese and US parties on and around the Volcano since December, 1980. The results of these observations show two kinds of seismic activity on Ross Island: activity concentrated near the summit of Mount Erebus associated with Strombolian eruptions, and micro-earthquake activity spread through Mount Erebus and the surrounding area. Seismicity on Mount Erebus has been quite high, usually exceeding 20 volcanic earthquakes per day. They frequently occur in swarms with daily counts exceeding 100 events. Sixteen earthquake swarms with more than 250 events per day were recorded by the seismic network during the three year period 1982-1984, and three notable earthquake swarms out of the sixteen were recognized, in October, 1982 (named 82-C), March-April, 1984 (84-B) and July, 1984 (84-F). Swarms 84-B and 84-F have a large total number of earthquakes and large Ishimoto-Iida's "m"; hence these two swarms are presumed to constitute on one of the precursor phenomena to the new eruption, which took place on 13 September, 1984, and lasted a few months.
AB - Mount Erebus (3794 m), located on Ross Island in McMurdo Sound, is one of the few active volcanoes in Antartica. A high-sensitivity seismic network has been operated by Japanese and US parties on and around the Volcano since December, 1980. The results of these observations show two kinds of seismic activity on Ross Island: activity concentrated near the summit of Mount Erebus associated with Strombolian eruptions, and micro-earthquake activity spread through Mount Erebus and the surrounding area. Seismicity on Mount Erebus has been quite high, usually exceeding 20 volcanic earthquakes per day. They frequently occur in swarms with daily counts exceeding 100 events. Sixteen earthquake swarms with more than 250 events per day were recorded by the seismic network during the three year period 1982-1984, and three notable earthquake swarms out of the sixteen were recognized, in October, 1982 (named 82-C), March-April, 1984 (84-B) and July, 1984 (84-F). Swarms 84-B and 84-F have a large total number of earthquakes and large Ishimoto-Iida's "m"; hence these two swarms are presumed to constitute on one of the precursor phenomena to the new eruption, which took place on 13 September, 1984, and lasted a few months.
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U2 - 10.1016/0264-3707(86)90052-9
DO - 10.1016/0264-3707(86)90052-9
M3 - Article
AN - SCOPUS:45949128935
VL - 6
SP - 391
EP - 404
JO - Journal of Geodynamics
JF - Journal of Geodynamics
SN - 0264-3707
IS - 1-4
ER -