A powerful undersea earthquake struck off the southern coast of Alaska on Wednesday, setting off a tsunami advisory and prompting concern along the state’s remote peninsula region.

The giant earthquake was recorded at 12:37 p.m. local time, southeast of Sand Point, a community located on Popof Island in the Aleutian Chain.

A 7.3 quake off Alaska triggers tsunami warnings and evacuations. Experts warn the region remains at high risk for future seismic sea waves.