SSA Print Logo Seismological Society of America
Skip to Content

Abstracts Online

RECONCILING REGIONAL AND TELESEISMIC ESTIMATES OF RADIATED SEISMIC ENERGY

PEREZ-CAMPOS, X., Department of Geophysics, Stanford University, Stanford, CA 94305-2215, xyoli@pangea.stanford.edu; SINGH, S. K., Instituto de Geofisica, UNAM, Ciudad Universitaria, 04150 Mexico D.F., Mexico, krishna@ollin.igeofcu.unam.mx; and BEROZA, G., Department of Geophysics, Stanford University, Stanford, CA 94305-2215, beroza@geo.stanford.edu.

The radiated seismic energy has been calculated using both teleseismic and regional data. The seismic energy is a broadband measure of the strength of seismic radiation and a fundamental source parameter, yet estimates based on teleseismic vs. regional data often differ by up to an order of magnitude for the same earthquake. This discrepancy persists irrespective of tectonic environment. To understand the source of this discrepancy we analyze a set of 15 earthquakes in the Middle American Trench in Mexico with a range in depths from shallow to intermediate (15 to 70 km), a range in magnitude of (5.9

[Back]

Last Modified: 2011 Aug 10

Web: www.seismosoc.org