HR: 0800h
AN: T11D-1282    [Abstracts]
TI: Crustal seismicity of Kamchatka
AU: * Gordeev, E
EM: gord@emsd.iks.ru
AF: Institute of Volcanology and Seismology, RAS, av. Pijp, 9, Petropavlovsk-Kamcha, 683006 Russian Federation
AU: Gusev, A
EM: gusev@emsd.iks.ru
AF: Institute of Volcanology and Seismology, RAS, av. Pijp, 9, Petropavlovsk-Kamcha, 683006 Russian Federation
AU: levina, V
EM: levina@emsd.iks.ru
AF: Kamchatkan Seismological Department, GS RAS, av Pijp, 9, Petropavlovsk-Kamcha, 683006 Russian Federation
AU: Leonov, V
EM: lvl@kcs.iks.ru
AF: Institute of Volcanology and Seismology, RAS, av. Pijp, 9, Petropavlovsk-Kamcha, 683006 Russian Federation
AU: Chebrov, V
EM: chebr@emsd.iks.ru
AF: Kamchatkan Seismological Department, GS RAS, av Pijp, 9, Petropavlovsk-Kamcha, 683006 Russian Federation
AB: The summary is given of tectonic seismicity of Kamchatka mainland, i.e., of areas to WNW from the main subduction zone of Kuril-Kamchatka arc. Volcano-tectonic earthquakes, abundant in this area, are not considered. Historical and pre-1960 instrumental data are almost absent for this territory. Paleoseismological data indicate quite considerable activity. During the last 40 years of detailed studies, hundreds of small and moderate earthquakes are recorded; they mostly occurred as clusters. Clusters and individual epicenters are often associated with known or assumed Holocene faults; however, th†y do not form well-expressed lineaments. The structures that have been revealed most distinctly are located in the ranges Sredinny, Kumroch, Tumrok, Valaginsky, Ganal'sky, in the Shchapinsky graben, and along the Eastern Volcanic Belt. A band of relatively weak seismicity stretches to the North, to Parapolsky-dol istmus and to Koryaksky uplands.
DE: 8100 TECTONOPHYSICS
SC: Tectonophysics [T]
MN: 2004 AGU Fall Meeting