Hidden off the US Western shore, beneath the Pacific Ocean, is the Cascadia Subduction Zone ... most dangerous segment along ...

Geologist Robert Yeats, author of 'Earthquake Time Bombs', has highlighted the risks associated with the presence of several large US cities in the Pacific Northwest's Cascadia subduction zone.

While not a household name like the San Andreas, the Elsinore fault is part of a larger seismic zone that experts fear and believe more people should know about.

On Monday, Cal Fire released the final installment of these updated fire hazard severity zone maps, which show that 5.1 million people — 1 in 8 Californians — live in the two most dangerous zones.

A powerful 5.2 magnitude earthquake rattled the San Diego County area Monday morning but did not appear to cause any major damage. According to the U.S. Geological Survey, the quake struck at ...