Цунамогенное землетрясение у побережья Северной Суматры (26 декабря 2004 г.)

• Main Authors: Старостенко, В.И., Кендзера, А.В., Бугаенко, И.В., Заец, Л.Н., Цветкова, Т.А.
• Format: Article
• Language: Russian
• Published: Інститут геофізики ім. С.I. Субботіна НАН України 2011
• Series: Геофизический журнал
• Online Access: http://dspace.nbuv.gov.ua/handle/123456789/96853

This work is dedicated to the studies of tsunamogenic earthquake on December 26, 2004 within the area of North Sumatra. By the method of seismic tomography proposed by V. S. Geyko three-dimensional P-velocity model of the mantle of the studied region up to the depth of 2600 km was plotted. According to the upper mantle velocity structure segmentation of the Indo-Australian plate (Sunda Arc) has been conducted and relation of defined segments with temporal cycling of the earthquakes with magnitude М≥6 has been found. Confinement of historical tsunamogenic earthquakes to the mantle velocity separation zones has been revealed. Suggestion has been made on the fact that the mantle velocity separation zones produce the conditions both for appearance of the captured wave and secondary Releigh waves that may promote, in its turn, the appearance of strong earthquakes, including tsunamogenic ones.