Category Archives: USGS

USGS Topographical Maps – Online

All of the topographical maps from USGS are online and easily accessible. Visit TopoView on the USGS site for more details and the maps.

M5.1 Borrego Springs Earthquake


Help the USGS with Earthquakes!

How can you help the United States Geological Survey? One simple way is to report to them when you feel an earthquake. This data helps them determine magnitude of the earthquake, how the geology affects that, and how the type of structure reacts to the event. Most earthquakes larger than 4.0 are listed in the “Events”  section of the page. So, help the USGS understand how earthquakes affect our region by contacting them at: “Did You Feel It?