Although a recent series of small earthquakes in the Puget Sound region has caused concern, an expert says the tremors are ...

By comparison, California's 1906 earthquake ruptured 296 miles of the San Andreas fault; and the 1857 earthquake, 225 miles. Longer seismic ruptures have been found only on subduction megathrusts ...

The earthquakes Thursday and Friday were certainly very powerful, with magnitudes of 6.4 and 7.1 at their epicenters near the city of Ridgecrest, California.

A new study shows Alaska could gain 10–50 seconds of warning before major earthquakes with an early warning system, similar ...

Scientists have issued a warning after a 620 mile crack spanning British Columbia to Alaska, known as the Tintina fault line, ...

The Big One: Is California 'overdue' for a devastating major earthquake? A near-certain disaster looms for California, but there are real things people can do to prepare.

California has dozens of earthquakes every day. Most are below 3.0 magnitude, so small that they aren’t felt. But a few, like the 1906 San Francisco earthquake, are massive, capable of ...

The sixth most powerful earthquake on record triggered widespread evacuation orders across multiple countries including the ...

That’s the longest seismic rupture ever documented on a continent. By comparison, California’s 1906 earthquake ruptured 296 miles of the San Andreas fault; and the 1857 earthquake, 225 miles.