Корякське нагір’я

Earthquakes on the south-west of Koryak highlands are connected with a block-key tectonics of lithosphere of marine transital of north-eastern margin of Eurasia and the block-key structure of its strata. The cloud of shocks of three strong earthquakes: Koryak`s (13.10.1988), Khailin`s (8.03.1991) and Olutor`s (20.04.2006) is located over the downfold of lithosphere bottom with drop of depths equal to 15-20 km. Preparation for the seismic events evolution to the north-eastward is possible.

Goal. The paper reveals geostructural conditions of foreshocks and aftershocks swarm location for the strong (M=6.6) Khailinsky earthquake on the south margin of the Koryak Late Mesozoic micro-continent on the northeast of Asia. The margin is an active junction of the continent and the Olyutor Paleogene tectonic zone and is manifested at the surface in the Koryak seismic belt. A swarm of earthquakes is located within the north margin of the Olyutor Paleogene tectonic zone. Methods.