Dozens of people from Valdez to Whitehorse to Southeast Alaska reported to the United States Geological Survey that they’d felt the earthquake, which occurred about 11:40 a.m. according to Alaska Earthquake Center data.

Every fifteen minutes, on average, the ground moves somewhere in Alaska. Most of those quakes are too small to notice, but together they reveal a state under constant geologic pressure. That routine background shaking turned into a regional jolt last Saturday,

An enormous earthquake has rattled the North American continent, with tremors being felt across the US-Canada border.