Magnitude 5.2 near Yountville, CA

Information from the UCB & USGS Menlo Park

Location: 5 km WSW of Yountville, CA
38.377 -122.414

Date & Time (Local): 00/09/03
01:36:30.09

Date & Time (UTC): 00/09/03
08:36:30.09

Depth (km): 9.4

ML: 5.2

Mw: 5.0

Fault System: Initially associated with the West Napa Fault;
now believed to have occurred on an unnamed fault

Details
- UCB/USGS Press Release
- UCB Moment Tensor solution
- UCB/USGS Aftershock Warning
Background Information
- From the Berkeley Seismological Laboratory
- From the USGS Menlo Park
Maps
Seismograms
- Main Shock - CVS
- Aftershock (01:37:50am PDT) - CVS
- Main shock and 5 aftershocks - CVS
- Main shock and preceeding teleseism
- Record Section of 5.2 Main Shock
Ground shaking information
- Northern California Shake Map - see the observed ground motions!
- Community Internet Intensity Maps - see what other people felt and report your observations!
- The Quick Report from the California Division of Mines and Geology
- Preliminary Data from the National Strong Motion Program
Related Research
- UCB Engineers have been studying the effects of strong shaking on stacked wine casks
- Data from this earthquake will be used to study the way waves propagate in the SF Bay Area
Earthquake Preparedness
- The Next Big Earthquake - a publication prepared by the USGS after the 1989 Loma Prieta earthquake.
- KTVU's Disaster Guide
- Quake Country from the San Francisco Chronicle

Return to the Events of Interest
Return to the Berkeley Seismological Laboratory

The Berkeley Seismological Laboratory, 202 McCone Hall, UC Berkeley, Berkeley CA 94720
Questions and comments to www@seismo.berkeley.edu
Copyright 2000, The Regents of the University of California.

Information from the UCB & USGS Menlo Park
Location:	5 km WSW of Yountville, CA 38.377 -122.414
Date & Time (Local):	00/09/03 01:36:30.09
Date & Time (UTC):	00/09/03 08:36:30.09
Depth (km):	9.4
ML:	5.2
Mw:	5.0
Fault System:	Initially associated with the West Napa Fault; now believed to have occurred on an unnamed fault