Mirror Sites The following two mirror sites are available. All sites have the Cosmos database and web pages. If you are experiencing difficulties using the principal site, please try one of the two mirror sites. California Geological Survey (not currently available) U.S. Geological Survey (not currently available) Home + Login + Download + About Us + Contact + Mirror Sites Earthquakes + stations + Search + Map + Advanced Search © Copyright 1999-2007 COSMOS, The Regents of the University of California