PRIMORYE EARTHQUAKE on April 12, 2014, KP=11.9 (Far Eastern Russia)-Reference-Cited by-同舟云学术

PRIMORYE EARTHQUAKE on April 12, 2014, KP=11.9 (Far Eastern Russia)

Published:2020-12-15 Issue:23 Volume: Page:298-306
ISSN:1818-6254
Container-title:Earthquakes in Northern Eurasia
language:ru
Short-container-title:

Author:

Safonov D.¹^ORCID,Shestakov N.²,Kovalenko N.³

Affiliation:

1. Sakhalin Branch of Geophysical Survey of the Russian Academy of Sciences, Institute of Marine Geology and Geophysics, Far Eastern Branch, Russian Academy of Sciences

2. Far Eastern Federal University, Institute for Applied Mathematics, Far Eastern Branch, Russian Academy of Sciences

3. Sakhalin Branch of Geophysical Survey of the Russian Academy of Sciences

Abstract

The article presents instrumental and macroseismic data of the earthquake that occurred on April 12, 2014 in the Primorye Region of the Far Eastern Federal District of the Russian Federation. Primorye refers to areas with a weak of shallow seismic activity. This relatively small magnitude M=4.5 earthquake is a rare occurrence in this region. It caused a significant macroseismic effect over an unexpectedly large area. The highest seismic intensity as large as 5 degrees was observed in the settlements nearest to the epicenter – Mezhgorye, Krylovka and Maryanovka. 36 minutes after the main event, an aftershock was recorded with an epicenter 6.5 km southeast of the main shock location, felt by the inhabitants of the settlement of Krylovka. According to the data obtained, the focal mechanism of the earthquake might be treated as the strikeslip fault type with the nodal planes of the sublatitudinal and sublongitudinal extension. In view of tectonics, the earthquake and its aftershock epicenters might be related to a nameless NW striking fault located near Mezhgorye Settlement and linking the Krylovsky and Chernorechensky faults.

Publisher

Geophysical Survey of the Russian Academy of Sciences - GS RAS

Reference28 articles.

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1. AMUR AND PRIMORYE;Earthquakes in Northern Eurasia;2020-12-15