| UDC 550.34 (571.66) | |
Seismic Tectonics on Kamchatka Peninsula |
|
| В© 2005 E. I. Gordeev1, 2, A. A. Gusev1, 2, V. I. Levina2, V. L. Leonov1, V. N. Chebrov2 |
1Institute of Volcanology and Seismology FEB RAS, Petropavlovsk-Kamchatsky
2Kamchatka experimental-methodological seismological party of the GS RAS, Petropavlovsk-Kamchatsky |
|
|
|
| E-mail:
|
|
| This is a review of tectonic seismicity on Kamchatka Peninsula placed to the NWN of the subduction area of the Kurils-Kamchatka Island Arc. Any historical and pre-1960ies instrumental data are in fact unavailable for this territory, although obtained paleoseismic data indicate a significant seismic activity. During the last forty years of intense seismic studies, the hundreds of small and medium-size earthquakes (often in clusters) have been recorded throughout the study area. The individual earhtquakes and those in clusters are often related to known or suggested Holocene faults, but, however, they do not form any well-expressed lineaments. The best defined structures are those of the Sredinny Range, the Kumroch, Tumrok, Valaghinsky and Ganalsky Ranges, the Schapin Trough and the Eastern Volcanic Belt. There is a belt featured by a relatively low seismicity, that extends northward to the Parapolsky Valley and the Koryak Highlands. This paper doesn't deal with the earthquakes related to volcanism. |
|
| Keywords: tectonic seismicity, Kamchatka, volcanotectonic earthquakes, active faults, magnitude of earthquakes, epicenter. |
| Full text [In Russian] |
|