Physics
Scientific paper
Sep 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999georl..26.2657s&link_type=abstract
Geophysical Research Letters, Volume 26, Issue 17, p. 2657-2660
Physics
4
Seismology, Seismology: Seismicity And Seismotectonics, Seismology: Seismic Hazard Assessment And Prediction
Scientific paper
Following the idea introduced by Wiemer and Wyss [1997], here is an attempt to map the seismic hazard, in terms of the b value in the frequency-magnitude distribution, in a region with moderate seismic activity (Béarn region, French Pyrenees). In this area, the complexity of the geology makes it necessary to perform a 3-D mapping, b values are computed within 5 km radius spherical volumes, that contain an average of 140 events. Strong lateral variations, between 0.45 and 1.8, are observed at short scales in the whole investigated volume. The minimum of the b value is clearly correlated with a historically active zone, which last ruptured in 1980 (Mb=5.1). Interpretating low b values in terms of high stresses may lead us to consider this minimum-b patch as a 5 km radius asperity. This study allows to define its location and dimensions.
No associations
LandOfFree
Identifying an asperity through 3-D mapping of the frequency-magnitude distribution does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Identifying an asperity through 3-D mapping of the frequency-magnitude distribution, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Identifying an asperity through 3-D mapping of the frequency-magnitude distribution will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1558609