Geologic maps don’t make headlines. You probably haven’t seen one unless you work in energy, construction, or science. Yet, ...

An curved arrow pointing right. The US Geological Survey (USGS) estimates that millions of earthquakes occur every year, but only one of them will be a "great earthquake" — that is, one with a ...

The US Geological Survey assessed technically recoverable oil and gas reserves in Maverick basin formations in the Western ...

A series of aftershocks hit eastern San Diego County following a 5.2 magnitude earthquake that rattled much of San Diego and ...