The 1985/86 Earthquake Swarm in Western Bohemia

Dana Procháková

doi:10.1785/gssrl.59.2.71

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Research Article| April 01, 1988

The 1985/86 Earthquake Swarm in Western Bohemia

Dana Procháková

Geophysical Institute, Czechosl. Acad. Sci., 141 31 Praha 4 - Sporilov Czechoslovakia

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Author and Article Information

Dana Procháková

Geophysical Institute, Czechosl. Acad. Sci., 141 31 Praha 4 - Sporilov Czechoslovakia

Publisher: Seismological Society of America

Received: 14 Jul 1987

Revision Received: 19 Oct 1987

Accepted: 25 Feb 1988

First Online: 09 Mar 2017

Online ISSN: 1938-2057

Print ISSN: 0895-0695

Seismological Research Letters (1988) 59 (2): 71–78.

https://doi.org/10.1785/gssrl.59.2.71

Abstract

Earthquake swarms are typical of Western Bohemia and the Vogtland region. The 1985/86 earthquake swarm lasted about two months (Dec. 1985 – Jan. 1986). It split into four active periods. Several thousands of earthquakes were recorded. The strongest shock was on Dec. 21, 1985 at 10 h 16 m UTC. Its local magnitude was 5.1 (FRG, Federal Republic of Germany) and 4.6 (CIPE, Central Institute for Physics of the Earth, Potsdamn, GDR) and epicentral intensity I_o = 7° MSK-64. A rich macroseismic and instrumental material provides new knowledge concerning the character of individual earthquakes and the swarm pattern. The swarm did not differ in character from the old ones.

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