A 6.1 magnitude earthquake struck the Andreanof Islands in the Aleutian Islands on March 21, 2025, at 15:03:29 GMT, according to the GFZ German Research Centre for Geosciences.
The epicenter was located at a depth of 77.5 kilometers, with coordinates of 51.05 degrees north latitude and 175.90 degrees west longitude.
In general, the inhabitants of this area live in buildings designed to withstand seismic activity; however, there are still some structures that are susceptible to damage. The most common types of vulnerable buildings include unreinforced brick masonry and reinforced masonry.
The initial earthquake was succeeded by an aftershock measuring M5.7 at 14:58 UTC, followed by another aftershock of M5.0 at 15:03 UTC.
This marks the second earthquake of magnitude 6 or greater that occurred on the same day, with the first being a M6.2 quake located south of Panama at 14:50 UTC.
