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by CSMIP Staff
Click on the link below for the full text:
Introduction
Strong-motion records are included from five CSMIP stations
that recorded the local magnitude 6.1 (BRK) (MW 6.3; NEIC)
earthquake of September 12. The preliminary hypocenter is
located at 38.82 N, 119.64 W with a shallow depth near 5 km
(UNR). The epicenter is located near the California-Nevada
border about 32 km southeast of South Lake Tahoe.
The following table summarizes the strong-motion data at
these five stations, ranging in epicentral distance from 14 to
163 km. The largest horizontal acceleration recorded at a ground
response site is 0.09 g in Woodfords. The ground response
accelerations, though not large, are near the mean of several
attenuation curves for an earthquake of this magnitude. The
largest structural acceleration is 0.35 g at the crest of a small
earth dam at Indian Creek Reservoir.
Processed data from Woodfords and the State Capitol in
Sacramento are included in this early release. The processed
acceleration, velocity and displacement, and the response
spectra are shown.
Files of the processed data are on the Internet.
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