A long-lost slab of Earth’s crust may be pulling away the bottom of the oldest part of North America, scientists say ...

An area in the Pacific Northwest lies on a 'subduction' zone where a tectonic plate slides underneath the North American ...

North America is dripping—with sizable blobs of rock sinking from the underside of the continent, beneath the U.S. Midwest, ...

In 1638, an earthquake in what is now New Hampshire and Plymouth, Massachusetts, left colonists stumbling from the strong ...

KTLA California Interactive Earthquake Map So far, there have been no reports ... according to the USGS. In North America, only Alaska records more quakes per year than California.

you can get a good estimate of an earthquake location using a map, a ruler, a pencil, and a compass for drawing circles on the map. Here are examples of a seismograms from different places in North ...

California is no stranger to earthquakes, but the risk of earthquakes hitting San Diego County specifically lies on the fact ...