1993 LOS ANGELES REGION SEISMIC EXPERIMENT
A PASSIVE STUDY FROM SEAL BEACH
NORTHEASTWARD THROUGH THE MOJAVE DESERT
The November 11 through December 16, 1993 passive phase of LARSE was a
joint effort involving scientists from the University of California (UCLA),
the U.S. Geological Survey (U.S.G.S.), the California Institute of Technology
(Caltech), and the University of Southern California (USC). The passive phase
of LARSE involved the deployment of approximately 88 stations
along a 175 km long linear array across the Los Angeles Basin, San Gabriel
Mountains, and Mojave Desert northeast of Los Angeles. For the passive
survey, energy sources were local and teleseismic earthquakes.
LOCATION OF STATIONS DEPLOYED DURING LARSE'93
Some station numbers are given for reference
The goal of the 1993 LARSE experiment was to collect waveform data from local
and distant earthquakes to obtain three-dimensional images of lower crust and
upper mantle structural features in Southern California, particularly under
the San Andreas fault and the San Gabriel mountains. During the four weeks
of continuous recording, over 160 teleseismic and over 400 local events
were recorded at each site.
This data set has since been complemented by the acquisition of deep crustal
multichannel seismic-reflection and refaraction profiles using onshore and offshsee
Descriptions of the array
data processing ,
recorded are presented in the following USGS Open File Report, or
by clicking on the underlined links.
Kohler, M. D., Davis, P.M., Liu, H., Benthien, M., Gao, S., Fuis, G., Clayton, R.W.,
Okaya, D. and Mori, J.,1996, Data Report for the 1993 Los Angeles Region Seismic
Experiment (LARSE93), Southern California: A Passive Study from Seal Beach Northeastward
through the Mojave Desert. , USGS OFR 96-85 .