Kodiak Island Borough, Alaska – A magnitude 3.1 earthquake struck southwest of Karluk on Saturday morning, registering at moderate depth beneath the region.
According to the Alaska Earthquake Center, the quake occurred at 3:33 p.m. UTC (6:33 a.m. Alaska time), approximately 43 kilometers southwest of Karluk. The tremor was recorded at a depth of 57 kilometers.
Seismologists classified the event as magnitude 3.1, a level typically considered light and unlikely to cause structural damage. The Alaska Earthquake Center listed the review status as automatic, meaning the data was computer-generated and may be subject to revision.
No injuries or damage were immediately reported.
Karluk is located on the southwest side of Kodiak Island, a region known for frequent seismic activity due to its proximity to the Alaska-Aleutian subduction zone. Earthquakes at depths greater than 50 kilometers are often felt less intensely at the surface compared to shallow events.
The epicenter was offshore and did not trigger a tsunami advisory, according to available seismic monitoring data.
Alaska experiences thousands of earthquakes each year, though most are too small to be felt. Residents are encouraged to report shaking through the Alaska Earthquake Center’s “Did You Feel It?” system to assist scientists in refining event data.
Light seismic activity like Friday’s event serves as a reminder of the region’s ongoing tectonic movement. For students and young workers in coastal communities, understanding earthquake safety procedures remains an important preparedness step.
Officials continue monitoring for aftershocks, though none had been recorded immediately following the event.
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