TY - JOUR
T1 - Earthquakes in Switzerland and Surrounding Regions during 2004
AU - Baer, Manfred
AU - Deichmann, Nicolas
AU - Braunmiller, Jochen
AU - Husen, Stephan
AU - Fäh, Donat
AU - Giardini, Domenico
AU - Kästli, Philipp
AU - Kradolfer, Urs
PY - 2005/12/1
Y1 - 2005/12/1
N2 - This report of the Swiss Seismological Service summarizes the seismic activity in Switzerland and surrounding regions during 2004. During this period, 677 earthquakes and 96 quarry blasts were detected and located in the region under consideration. With 22 events with M L ≥2.5, the seismic activity in the year 2004 was close to the average over the last 30 years. As in previous years, most of the activity was concentrated in the Valais and in Graubünden. In addition, several moderate earthquakes occurred in the lower crust below the northern Alpine foreland. Unusual was that five earthquakes were sufficiently strong to cause ground shaking of intensity IV over large portions of the territory. Two were located in Switzerland (Liestal, M L 3.8, and Brugg, M L 4.0). The epicenters of the other three strong events were located outside Switzerland (Besançon in the French Jura, M L 4.8, Waldkirch in southern Germany, M L 5.1, and Lago di Garda in northern Italy, M L 5.3).
AB - This report of the Swiss Seismological Service summarizes the seismic activity in Switzerland and surrounding regions during 2004. During this period, 677 earthquakes and 96 quarry blasts were detected and located in the region under consideration. With 22 events with M L ≥2.5, the seismic activity in the year 2004 was close to the average over the last 30 years. As in previous years, most of the activity was concentrated in the Valais and in Graubünden. In addition, several moderate earthquakes occurred in the lower crust below the northern Alpine foreland. Unusual was that five earthquakes were sufficiently strong to cause ground shaking of intensity IV over large portions of the territory. Two were located in Switzerland (Liestal, M L 3.8, and Brugg, M L 4.0). The epicenters of the other three strong events were located outside Switzerland (Besançon in the French Jura, M L 4.8, Waldkirch in southern Germany, M L 5.1, and Lago di Garda in northern Italy, M L 5.3).
KW - earthquakes
KW - focal mechanisms
KW - moment tensors
KW - Switzerland
UR - https://digitalcommons.usf.edu/geo_facpub/807
UR - https://doi.org/10.1007/s00015-005-1168-3
U2 - 10.1007/s00015-005-1168-3
DO - 10.1007/s00015-005-1168-3
M3 - Article
VL - 98
JO - Eclogae Geologicae Helvetiae
JF - Eclogae Geologicae Helvetiae
ER -