More than 50 aftershocks were recorded in Alaska after a powerful earthquake

More than 50 aftershocks were recorded after a strong earthquake off the coast of Alaska, says the U.S. Geological Survey (USGS).

Magnitude of the aftershocks after the earthquake ranges from 2.6 to 6.1. They continue to this day.

Earlier Thursday, a strong earthquake with a magnitude of 8.2 struck off the coast of Alaska. The U.S. Tsunami Warning Center (NWS) announced a tsunami threat.

The warnings for the coasts of Alaska and the Aleutian Islands were later canceled. This is the strongest earthquake in North America since 1964.