The quake struck in an extremely seismically active area called the Geysers.

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.

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 magnitude-2.5 earthquake shook the Charleston, South Carolina region just after 9:00 p.m. local time on Wednesday, centered ...

Often in these weekly Night Sky columns I refer to the magnitude of a star or planet. The concept of magnitude is relatively easy to grasp. Put simply, magnitude indicates an object’s degree of ...

A magnitude 5.2 earthquake, centered about 18 miles southwest of Bakersfield, was felt across a wide swath of Southern California on Tuesday night. Its size rattled nerves but caused no major damage ...

A 4.7-magnitude earthquake struck near Malibu on Thursday morning, according to the U.S. Geological Survey. The quake happened at 7:28 a.m., with an epicenter 3.5 miles northwest of Malibu. Shaking ...

Another day, another earthquake – this time a magnitude 5.9 tremor striking Haiti, killing around 10 people and injuring more than 100. Recovery efforts are already underway in the most damaged ...