Open AccessARCTIC
Author(s) -
Georgiy Avetisov,
A. Jolondz
Publication year - 2019
Publication title -
zemletrâseniâ severnoj evrazii v ... godu
Language(s) - English
Resource type - Journals
ISSN - 1818-6254
DOI - 10.35540/1818-6254.2019.22.24
Subject(s) - arctic , geology , the arctic , seismology , structural basin , canada basin , induced seismicity , physical geography , oceanography , geography , geomorphology
The review of the Arctic basin seismicity for 2013 is presented. It is based mainly on the data from the sta-tions of world network, located outside the basin. The data from a single local seismic station was used. It was "Franz Josef Land" station with two sets of seismic sensors, ZF1 and ZF2. The station is a part the Ar-khangelsk network, operating in the region since September 2011. There were 38 earthquakes with mb=3.0–4.6 in the Arctic basin in total. A map of their epicenters is provided. 28 of them are connected with the seismically active zone, which extends through the deep-water part of the Arctic basin to the shelf of the Laptev Sea. For two earthquakes, the parameters of focal mechanisms are given according to the GCMT da-ta. The magnitude frequency distribution for 2013 is compared with the distributions for 1990-2012. The level of seismic energy released in 2013 is 1.3 times lower than in 2012 and 1.6 times higher than its average one for 23 previous years. The distribution of earthquakes in the Arctic region in 2013 is presented.