SCEDC Home
Home

== PRELIMINARY EARTHQUAKE REPORT ==

Southern California Seismic Network: a cooperative project of
U.S. Geological Survey, Pasadena California
Caltech Seismological Laboratory, Pasadena, California



Version #1: This report supersedes any earlier reports of this event. This is a computer-generated message. This event has not yet been reviewed by a seismologist.

A micro earthquake occurred at 10:23:31 PM (PDT) on Thursday, May 8, 2008.
The magnitude 2.1 event occurred 2 km (1 miles) N of Pomona, CA.
The hypocentral depth is 6 km ( 4 miles).



Magnitude 2.1 - local magnitude (Ml)
Time Thursday, May 8, 2008 at 10:23:31 PM (PDT)
Friday, May 9, 2008 at 5:23:31 (UTC)
Distance from Pomona, CA - 2 km (1 miles) N (350 degrees)
Claremont Colleges, CA - 5 km (3 miles) SW (217 degrees)
Montclair, CA - 6 km (4 miles) W (265 degrees)
Riverside, CA - 36 km (22 miles) WNW (292 degrees)
Coordinates 34 deg. 4.3 min. N (34.072N), 117 deg. 45.2 min. W (117.754W)
Depth 5.9 km (3.7 miles)
Quality Poor
Location Quality Parameters Nst=020, Nph=020, Dmin=36 km, Rmss=0.62 sec, Erho=2.1 km, Erzz=15.8 km, Gp=144 degrees
Event ID# ci14367324
Additional Information map ||
  Waveforms

For more information, see http://quake.wr.usgs.gov/

[ Index map || big earthquake list || all earthquake list || glossary of terms || top page ]
[ Did you feel it? || Shake Map North || Relative2Me ]
[ Data Sources || Contacts ]

Research Tools
General Earthquake Information >
Stations/ Instrumentation
Educational Resources
About the Data Center