Two 1993 Kamchatka earthquakes |
| |
| Authors: | Jean M Johnson Yuichiro Tanioka Kenji Satake Larry J Ruff |
| |
| Institution: | (1) Department of Geological Sciences, University of Michigan, 48109-1063 Ann Arbor, MI, USA |
| |
| Abstract: | Two earthquakes occurred in 1993 off southern Kamchatka. They have similar surface wave magnitudes, focal mechanisms, and depths, but have distinctly different characteristics. The November earthquake is a standard or  impulsive M7 underthrusting event. The June earthquake is a tsunamigenic or low-stress-drop event with several unusual characteristics, including a large, diffuse aftershock zone, directivity, and a long source time function. The 1993 earthquakes ruptured a segment of the Kamchatka Arc which has not ruptured since 1904. The 1993 earthquakes seem to signal the midpoint in the southern Kamchatka seismic cycle. |
| |
| Keywords: | Earthquake parameters tsunamis earthquake cycle |
| 本文献已被 SpringerLink 等数据库收录！ |
|
