Yakutat, AK – Two magnitude-4.0 earthquakes struck northern Southeast Alaska on Sunday as an ongoing swarm of seismic activity persisted through the weekend, according to the Alaska Earthquake Center.
The first quake hit at 5:50 p.m. UTC Sunday roughly 88 kilometers north of Yakutat at a depth of 5 kilometers. A second M4.0 event followed in the same region shortly afterward, continuing what scientists describe as a multi-day cluster of small to moderate quakes that began late Friday.
According to the Alaska Earthquake Center, dozens of low-magnitude earthquakes have been recorded throughout the weekend, marking one of the more active stretches in recent months for the Yakutat region. The shallow depth of Sunday’s quakes is typical for Southeast Alaska, where swarms can occur along complex crustal fault systems.
No injuries or damage were reported, and officials confirmed there is no tsunami risk for Yakutat, Juneau, Sitka, or surrounding coastal communities.
While shaking reports remain limited, residents are encouraged to submit details to the USGS “Did You Feel It?” system to help refine seismic monitoring during the active swarm.
Experts note that earthquake swarms can continue for days and occasionally produce additional moderate quakes, though most remain harmless. Emergency officials encourage residents in seismically active zones to review preparedness plans and check home safety measures.
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