PASADENA – A geophysicist for the United States Geological Survey at Caltech said Tuesday afternoon that Southern California’s fault lines should not see any effects from a 5.9 magnitud… ...

The 4.8-magnitude earthquake on the East Coast Friday came from ancient dormant faults. The faults formed when two continents collided about 500 million years ago, creating the Appalachians and ...

Earthquakes are common on the West Coast, with multiple plate boundaries like the San Andreas fault making geologic activity more likely. They are rarer on the East Coast, but they do happen .

The fault lines are more healed. As a result, the East is far less seismically active -- but when earthquakes do hit, that hard ground is far more effective and conducting the seismic waves.

The Ramapo Fault zone is a series of small fault lines that runs through New York, New Jersey and Pennsylvania. Spanning more than 185 miles, it was formed about 200 million years ago. "Right now ...

Blame ancient fault lines and bedrock for the jolt. Skip to main content. SECURITY. POLITICS. THE BIG STORY. ... Given how much more densely populated the East Coast is than the West Coast, ...

The earthquake that just shook the East Coast was caused by one of dozens of ancient fault lines that have lain dormant for hundreds of millions of years, top scientists announced on Friday ...