On the Question of Influence of Remote Earthquakes on
Seismicity

G. A. Sobolev and N. A. Zakrzhevskaya

Schmidt Institute of Physics of the Earth, Russian Academy of Sciences, ul. Bol’shaya Gruzinskaya 10, Moscow, 123995
Russia

Received November 22, 2012

Abstract—The responses of the Kamchatka earthquakes with a minimum energy class of completeness K8.5
to 214 strong worldwide earthquakes with magnitudes M 7.5 and to 40 earthquakes with M 8 are studied.
The analysis covers the time interval of 1963–2012. The distances from the sources of the strongest earthquakes
to the center of the seismically active Kamchatka zone range from 600 to 16 000 km. It is established that the
remote earthquakes enhanced seismic activity in Kamchatka, at least in the cases when the dynamic strain was
above 10^–6, which corresponds to the additional stresses of 10^–2 MPa, accelerations above 0.1cm/s², and the
periods of the surface waves of ~20 s. The response to the remote events gradually increased within a few days.
The sensitivity of the response to the remote earthquakes varied in the course of time, which is identified on the
intervals of a few dozens of years.

DOI: 10.1134/S1069351313030166

Pleiades Publishing home page | journal home page | top

If you have any problems with this server, contact webmaster.