Powerful 7.3 Magnitude Earthquake Strikes Alaska, Tsunami Warning Issued
A major earthquake with a magnitude of 7.3 hit the Alaskan Peninsula, striking near Sand Point on Popof Island. The quake’s epicenter was located about 36 kilometers (22 miles) below the ocean floor, according to the U.S. Geological Survey (USGS). The tremors prompted the National Tsunami Warning Center to issue an immediate tsunami alert for coastal areas, though it was later downgraded to an advisory.
Magnitude: 7.3
Depth: 36 km (22 miles)
Location: Near Sand Point, Alaska Peninsula
Time: Occurred at 2:07 AM IST / 12:30 PM local Alaska time
The earthquake’s shallow depth raised concerns about potential destruction, as shallow quakes tend to cause stronger ground shaking. Authorities warned residents in coastal areas, including Kodiak (population ~5,200) and Unalaska (~4,100), to move to higher ground—at least 50 feet above sea level and one mile inland—as a precaution.
While no major damage or casualties have been reported yet, experts continue to assess the situation. The Alaska-Aleutian subduction zone, where tectonic plates collide, is one of the most seismically active regions in the world and has historically triggered devastating tsunamis.
The Alaska-Aleutian fault system is responsible for frequent earthquakes and volcanic activity.
Over 130 volcanic points exist in this region, accounting for three-quarters of U.S. volcanic activity.
A similar 7.8 magnitude quake in 2020 also triggered tsunami warnings but caused limited damage.
Residents have been urged to stay alert for aftershocks and follow emergency protocols. The USGS and local agencies are monitoring the situation closely.