Non-volcanic tremor ramp up precedes slow slip in Cascadia by about a day, indicating that brittle-creeping process ...

Earthquakes occur when the rock on one side of a fault slips relative to the other. The fault surface can be vertical, ...

Residents are urged to secure household items, maintain emergency kits, and participate in statewide drills such as the Great ...

Strain slowly builds up until the fault’s frictional strength is exceeded and the rocks slip past each other in a “megathrust ...

Monday’s early morning earthquake rattled a few nerves and had many Islanders thinking about the 'great' rattlers that have come and gone, as well as the 'big ones' looming ...

A 4.5 magnitude earthquake struck Monday morning near the Orcas Island in northern Washington state. The temblor occurred at about 5 a.m. and was centered near the Washington-Canada border, about 18 ...

The 4.6-magnitude quake occurred at 5:02 a.m. about 42 kilometres east of the Saanich Peninsula, according to preliminary measurements.

The whopping magnitude 9 quake occurred back on Jan. 26, 1700, and is known as the Cascadia Megathrust Earthquake. “The undersea Cascadia thrust fault ruptured along a 1000 km length, from ...

The U.S. Geological Survey recently confirmed two different earthquakes in two different areas of Georgia on the same day this week. Here's what we know: When and where were the Georgia earthquakes?