Velocity ratio variations in the source region of earthquake swarms in NW Bohemia obtained from arrival time double-differences

0427455 - GFÚ 2015 RIV GB eng J - Journal Article
Dahm, T. - Fischer, Tomáš
Velocity ratio variations in the source region of earthquake swarms in NW Bohemia obtained from arrival time double-differences.
Geophysical Journal International. Roč. 196, č. 2 (2014), s. 957-970. ISSN 0956-540X. E-ISSN 1365-246X
Institutional support: RVO:67985530
Keywords : tomography * earthquake source observations * volcano seismology
Subject RIV: DC - Siesmology, Volcanology, Earth Structure
Impact factor: 2.560, year: 2014

Crustal earthquake swarms are an expression of intensive cracking and rock damaging over periods of days, weeks or month in a small source region in the crust. They are caused by longer lasting stress changes in the source region. Often, the localized stressing of the crust is associated with fluid or gas migration, possibly in combination with pre-existing zones of weaknesses. However, verifying and quantifying localized fluid movement at depth remains difficult since the area affected is small and geophysical prospecting methods often cannot reach the required resolution.
Permanent Link: http://hdl.handle.net/11104/0232985