Recent Earthquakes in California and
Nevada
== PRELIMINARY EARTHQUAKE REPORT ==California Integrated Seismic Net
USGS/ Caltech/ CGS/ UCB/ UCSD/ UNR
Version #7: This report supersedes any earlier reports of this event.
Magnitude has been reviewed after
subsequent review
A moderate earthquake occurred at 8:03:06 PM (PDT) on
Tuesday, April 29, 2008.
The magnitude 5.4 event occurred 18 km (11 miles)
ESE of Willow Creek, CA.
The hypocentral depth is 28 km (18 miles).
| Magnitude | 5.4 - regional moment magnitude (Mw) |
|---|---|
| Time | Tuesday, April 29, 2008 at 8:03:06 PM (PDT) Wednesday, April 30, 2008 at 3:03:06 (UTC) |
| Distance from | Willow Creek, CA - 18 km (11 miles) ESE (114
degrees) Blue Lake, CA - 41 km (26 miles) E (97 degrees) Hayfork, CA - 42 km (26 miles) NW (315 degrees) Eureka, CA - 56 km (35 miles) E (84 degrees) Sacramento, CA - 307 km (191 miles) NW (326 degrees) |
| Coordinates | 40 deg. 50.2 min. N (40.837N), 123 deg. 30.0 min. W (123.499W) |
| Depth | 28.5 km (17.7 miles) |
| Location Quality | Good |
| Location Quality Parameters | Nst=140, Nph=140, Dmin=20 km, Rmss=0.15 sec, Erho=0.4 km, Erzz=1.4 km, Gp=54 degrees |
| Event ID# | nc40216664 |
| Additional Information | 2-degree
map Google Earth KML (Requires Google Earth.) ShakeMap shaking intensity maps Did you feel it? Aftershock Warning NCSN First Motion Mechanism 1 Waveforms Waveforms for ShakeMap Berkeley moment tensor solution Tsunami Information Statement from the WC/ATWC |
For more information, see http://quake.wr.usgs.gov/
[ Data Sources || Contacts ]