Tectonic position of the Khailino and Olyutorka earthquakes

• Main Author: G. P. Yarotskii
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Published: 2008
• Subjects: Khailino; Olyutorka; Vyvenka; Kamchatka
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.594.2838; http://kcs.dvo.ru/ivs/bibl/sotrudn/yar/g2008/tect_pozition_hailino.pdf

[1] The continentocean transition zone has various exogenous and endogenous processes that reflect the geodynamic ecological function of lithosphere. The East Kamchatka suffers the earthquakes with MSK64 over 9 points. PetropavlovskKamchatsky is in zone of 9.5 points. The area of strong earthquakes included the Hailinskoye (1991) the Olyotorskoye (2006) events with both magnitudes 7.1 that caused the area broadening. We suggest their tectonic position valuation in the blockmasskey (a pianolike) structure in the earth crust in concept of the continent active margin. This structure was formed by the system of the northwestern (320–330 ◦ ) lateral deep faults. They are located logically and cross Kamchatka, Okhotskoye sea, OkhotskoChukotskiy volcanogenic belt and appear on the continent as linear (45 ◦ ) faults. In KoryakKamchatkan region they appear each 75–160 km. They are betweenblocks and stretch to the northwest for hundred of kilometers, divide the crust into blocks with vertical movements in different directions and have rather mobile southeastern ends in a transition zone between an ocean and a continent. Peninsulas represent the rising ends of blocks and the coastal gulfs represent the lowering ends of blocks. The scheme was determined from the south Japan to cape Dezhnyov. The both earthquakes occurred in the Vyvenka rivervalley. Its northern valley side is a part of the