Intraplate earthquake swarms in West Bohemia/Vogtland (Central Europe)

0356855 - GFÚ 2011 RIV IS eng J - Journal Article
Horálek, Josef - Fischer, Tomáš
Intraplate earthquake swarms in West Bohemia/Vogtland (Central Europe).
Jokull. Roč. 60, č. 1 (2010), s. 67-87. ISSN 0449-0576
Grant - others:Norway Grants(NO) A/CZ0046/2/0015
Institutional research plan: CEZ:AV0Z30120515
Keywords : earthquake swarm * West Bohemia/Vogtland * WEBNET seismic network
Subject RIV: DC - Siesmology, Volcanology, Earth Structure
Impact factor: 1.889, year: 2010

West Bohemia (Czech Republic) and Vogtland (Germany) are among the most active intraplate earthquake-swarm areas in Europe with the largest events mostly of magnitudes ML<4.0. The principal characteristics of the West Bohemia/Vogtland earthquake swarms are derived on the basis of local observations from the network WEBNET during the period between 1991 and 2009. Swarm microearthquakes clustered in number of small focal areas; however, about 90% of the total seismic moment was released in the Nový Kostel (NK) focal zone, which was formed by an NNW striking and steeply dipping fault plane. The focal depths ranged between 5 and 22 km in the whole region and between 4.5 and 11 km in the NK zone, while most of the swarm events clustered at depths from 8.5 to 9.5 km. All larger earthquake swarms took place in the NK zone; though they were located close, they differed significantly in their evolution.
Permanent Link: http://hdl.handle.net/11104/0195268