For more information about earthquakes and these data in particular,
please see our FAQ page. If you still have questions, you can contact us at:

U.S. Geological Survey	Voice:	650-329-4085
Seismology Section	Earthquake Info:	650-329-4025
345 Middlefield Road - MS 977	Fax:	650-329-5163
Menlo Park, CA 94025	E-mail:	ncsn@andreas.wr.usgs.gov
U.C. Berkeley Seismological Laboratory	Voice:	510-642-3977
207 McCone Hall	Earthquake Info:	510-642-2160
U.C. Berkeley	Fax:	510-643-5811
Berkeley, CA 94720-4760	E-mail:	www@seismo.berkeley.edu