Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
Source properties of the 2010 M7 Haiti earthquake revealed by high-resolution seismic array analysis at regional distance
 

Summary: Source properties of the 2010 M7 Haiti earthquake revealed by high-resolution
seismic array analysis at regional distance
L. Meng1
, J.-P. Ampuero1
, A. Sladen2
and H. Rendon3
1. Seismological Laboratory, California Institute of Technology
2. CNRS - Géoazur, Univ. de Nice-Sophia Antipolis
3. La Fundación Venezolana de Investigaciones Sismológicas
Abstract:
A catastrophic Mw 7 earthquake ruptured on January 12th 2010 on a complex fault
system near Port-au-Prince, Haiti. Offshore rupture during this event is suggested by
aftershock locations and marine geophysics studies but its extent remains
unconstrained by geodetic and teleseismic observations. Here we perform a high
resolution seismic array analysis at regional distance based on recordings from the
Venezuela National Seismic Network to resolve high frequency aspects of the
earthquake process and to assess the extent of offshore rupture. Our analysis
combines the Multiple Signal Classification (MUSIC) method with the multi-taper
cross-spectrum estimation technique to efficiently distinguish multiple sources in non-
stationary seismic array data. Our results indicate two major subevents, roughly 35

  

Source: Ampuero, Jean Paul - Division of Geological and Planetary Sciences, California Institute of Technology

 

Collections: Geosciences