On July 16, 2025, a powerful 7.3-magnitude earthquake struck off the southern coast of Alaska, triggering tsunami warnings and prompting swift evacuations across coastal communities. The quake occurred at 12:37 p.m. local time, centered about 55 miles southeast of Sand Point, near the Shumagin Islands, according to the U.S. Geological Survey (USGS).

Shortly after the quake, the National Tsunami Warning Center issued an official tsunami warning for areas spanning from Unimak Pass to Kennedy Entrance, including Kodiak Island and portions of the Alaska Peninsula. Emergency sirens blared, and phone alerts instructed residents to move to higher ground. In towns like King Cove and Sand Point, families fled inland while schools and community centers were converted into emergency shelters.

By 2:45 p.m. local time, the tsunami warning was downgraded and later canceled after only minor wave activity—measuring about 3 to 4 inches—was observed. No injuries or major damage were reported.

Michael West, a seismologist at the Alaska Earthquake Center, noted that while the region is accustomed to seismic activity, quakes of this magnitude are rare. “Alaska experiences more earthquakes than any other U.S. state, but today’s event was unusually strong,” he said.

Over 20 aftershocks followed the main quake, with the strongest measuring 5.2. Officials continue to monitor seismic activity in the region.

Though the tsunami threat was brief, the incident serves as a reminder of Alaska’s vulnerability to seismic hazards and the importance of emergency preparedness in coastal areas. Authorities praised the community’s quick response, which helped ensure safety during the brief but tense emergency.