The Pacific Plate (in blue) was formed at the junction of three tectonic plates — Farallon, Phoenix and Izanagi — that once sat under the massive ocean Panthalassa. | Credit: Fama Clamosa ...

The Pacific Northwest boasts an extensive network of more than 600 seismic monitoring stations that help researchers track ...

Drainage, structural and ocean are the major types of basins. As for ocean basins, the Pacific Ocean is the world's largest, covering 63 million square miles, with deep depths averaging 13,000 feet.

The Philippines, long seen as a complex intersection of tectonic plates, ... At its peak, the plate measured around 15 million square miles—roughly a quarter of today’s Pacific Ocean.

The Kamchatka Peninsula witnessed a series of earthquakes on July 20. Located at the intersection of tectonic plates, the ...

A tsunami alert was lifted after a series of powerful earthquakes off the coast of Russia's far east on Sunday did not result ...

A tsunami alert has been issued after multiple earthquakes, some dangerously strong, struck off the southeast coast of Russia ...

"The Pacific is essentially what remains of Panthalassa." Oceans and continents past and present rest on top of tectonic plates , the giant slabs of rock that make up Earth's rigid outer shell.