Source parameters of the swarm earthquakes in West Bohemia/Vogtland

0397244 - GFÚ 2014 RIV GB eng J - Journal Article
Michálek, Jan - Fischer, Tomáš
Source parameters of the swarm earthquakes in West Bohemia/Vogtland.
Geophysical Journal International. Roč. 195, č. 2 (2013), s. 1196-1210. ISSN 0956-540X. E-ISSN 1365-246X
Institutional support: RVO:67985530
Keywords : Fourier analysis * earthquake source observations * seismicity and tectonics
Subject RIV: DC - Siesmology, Volcanology, Earth Structure
Impact factor: 2.724, year: 2013

The self-similarity of earthquake rupture scaling is a subject of ongoing debates. The output of multiple recent studies agrees on the fact that stress drops of earthquakes varies from 0.1 to 100 MPa over a broad range of seismic moments. We investigated the source parameters of 56 earthquakes in the magnitude range M-L from 0.8 to 3.3 occurred during the 2000 and 2008 swarm in West Bohemia/Vogtland in order to learn if the source scaling of these, most-likely fluid triggered events, differ from the observations in other seismogenic regions around the world. We used two approaches to calculate the corner frequency in the frequency domain: inverting for the corner frequency f(c) of the displacement spectra and integrating of spectra by the method of Snoke. A single f(c) for all stations was determined with attenuation correction defined by inverting for an event-dependent Q-factor.
Permanent Link: http://hdl.handle.net/11104/0224972