|
Detailed Reference Information |
Beck, S.L., Silver, P., Wallace, T.C. and James, D. (1995). Directivity analysis of the Deep Bolivian Earthquake of June 9, 1994. Geophysical Research Letters 22: doi: 10.1029/95GL01089. issn: 0094-8276. |
|
The June 9, 1994 deep Bolivian earthquake (MW=8.3, d=636 km) occurred on a nearly horizontal rupture plane with an approximate area of 2000 km2. The rupture plane is constrained by directivity analysis of the P wave displacement pulses recorded at local, regional, and teleseismic distances. The fact that there are local recordings of the displacement provides a strong constraint on the vertical extent of faulting, which is less than ~10 km. The moment release had at least four distinct episodes, or subevents. The best overall explanation for the subevents is rupture which initiates on the western margin of the fault plane, propagates to the east, and then continues bilaterally along a 350¿ azimuth, with most of the moment release occurring to the north. The apparent rupture velocity between subevents is very low, approximately 1--2 km/s. ¿ American Geophysical Union 1995 |
|
|
|
BACKGROUND DATA FILES |
|
|
Abstract |
|
|
|
|
|
Keywords
Seismology, Earthquake parameters |
|
Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
|
|
|