A powerful 7.5-magnitude earthquake has struck off northern Japan, injuring over 20 people and triggering a tsunami ...

For more than a month, the Bay Area has been subjected to a seemingly ceaseless stampede of earthquakes, rattling windows and raising fears across California.

A 6.5 magnitude earthquake rocked the island nation of Papua New Guinea on Monday morning, according to the U.S. Geological ...

The quake came only eight days after three earthquakes shook the area in the course of about 100 minutes. More than 30 quakes ...

A 6.7 magnitude earthquake occurred Friday afternoon local time off the northern coast of Japan, the Japan Meteorological ...

Earthquakes and seismic activity often happen with sudden movements underground with tectonic plates. Seismographs are used by scientists to measure the time, location and strength of an earthquake.

A 4.5 magnitude earthquake struck off the coast of Oregon early Sunday morning, according to the U.S. Geological Survey. The ...

What does “moment magnitude” mean, and how do scientists determine the strength of a rupture in the earth? By Henry Fountain Henry Fountain spent a quarter century covering science for The Times. He ...

A 5.1 magnitude earthquake shook an area near Oklahoma City late Friday, followed by smaller quakes during the next several hours, the U.S. Geological Survey reported. No injuries were reported and ...

The U.S. Geological Survey reported a magnitude 3.2 earthquake at 10 a.m. near Basin Butte, about 10 miles northwest of ...

MUSCOY, Calif. (KABC) -- A 4.3-magnitude earthquake struck the Inland Empire Thursday morning, with shaking felt across Southern California. That quake hit just after 9:30 a.m. in the Muscoy area at a ...