A notable earthquake struck in Alaska’sKodiak Island Borough on Oct. 6, the United States Geological Survey reported.
The quake measured a preliminary magnitude 5.5, the USGS said, with the epicenter located about 57 miles northwest of Aleneva.
The temblor struck about 1:34 p.m. local time and it was not immediately clear whether the quake caused any injuries or damage.
There is no immediate threat of a tsunami, per the National Tsunami Warning Center.

A notable earthquake struck in Alaska’s Kodiak Island Borough on Oct. 6, 2026, the United States Geological Survey reported. The quake measured a preliminary magnitude 5.5, the USGS said, with the epicenter located about 57 miles northwest of Aleneva.
Earthquake magnitudes
Here are the effects of earthquakes of various magnitudes, according to Michigan Technological University:
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Below 2.5: Generally not felt
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2.5 to 5.4: Minor or no damage
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5.5 to 6.0: Slight damage to buildings
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6.1 to 6.9: Serious damage
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7.0 to 7.9: Major earthquake, serious damage
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8.0 or greater: Massive damage, can destroy communities
Natalie Neysa Alund is a senior reporter for USA TODAY. Reach her at nalund@usatoday.com and follow her on X @nataliealund.
This article originally appeared on USA TODAY: Magnitude 5.5 earthquake hits southern Alaska











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