A new study claims that an 80-100-foot-wide layer of clay exacerbated the 2011 earthquake.

The earthquake that killed tens of thousands of people and led to the Fukushima nuclear shutdown was amplified by a soft layer of slippery clay, according to a new study. The layer is only around ...

TOKYO (AP) — Japan lifted a megaquake advisory for the country's northeastern coast Tuesday, one week after a magnitude 7.5 earthquake struck off northern Japan that officials said had caused an ...

Emergency alerts issued in the event of earthquakes off the Pacific coast of central Japan are expected to experience delays ...

A thin, soft and slippery layer of clay-rich mud embedded in rock below the seafloor intensified the 2011 Japan earthquake ...

Multiple earthquakes, including one at 6.2 magnitude, struck western Japan late Tuesday morning local time, centered in Shimane Prefecture and neighboring Tottori Prefecture. The initial quake hit at ...

TOKYO (AP) — Japan was assessing damage Tuesday and cautioning people of potential aftershocks after a late-night 7.5 magnitude earthquake caused injuries, light damage and a tsunami in Pacific ...

TOKYO (AP) — Japan on Friday issued a tsunami advisory after a 6.7 magnitude earthquake shook the country’s northeast, according to the Japan Meteorological Agency. The quake occurred off the east ...

TOKYO(AP) — A powerful 7.5 magnitude earthquake struck off northern Japan late Monday, injuring 23 people and triggering a tsunami in Pacific coast communities, officials said. Authorities warned of ...

WASHINGTON (AP) - You won't notice it, but the day just got a tiny bit shorter because of Friday's giant earthquake off the coast of Japan. NASA geophysicist Richard Gross calculated that Earth's ...