If such a megaquake were to occur, it could potentially cause a dangerous tsunami that could put thousands of lives at risk.

Two of Japan's nuclear power plants were rattled on Monday when a magnitude 6.6 earthquake struck southwest Japan, prompting a tsunami advisory for parts of the region. This map shows the locations of ...

A strong earthquake struck southwestern Japan, the U.S. Geological Survey said, prompting authorities to issue a tsunami ...

A 2021 map shows the impact of a tsunami hitting the San Fransisco area - and the devastation it could cause. The map was thrust back into the spotlight Thursday when a 7.0-magnitude earthquake hit ...