The 7.2 quake triggered a brief tsunami warning for southern Alaska late Saturday night, but the warning was lifted about an hour later, monitoring officials said.
According to the Alaska Earthquake Center, the quake was felt throughout the Aleutian Islands, the Alaska Peninsula and the Cook Inlet area.
In Kodiak, Alaska, sirens warned of a possible tsunami and sent people to shelters late at night, according to a video posted on social media.
The USGS wrote in a social media post that the quake struck 106 kilometers (65.8 miles) south of Sand Point, Alaska, at 10:48 p.m. Saturday. The quake was initially reported to have a magnitude of 7.4, but the estimate was lowered to 7.2 soon after.
The US National Weather Service issued a tsunami warning saying the quake hit at a depth of 13 miles (21 km). The agency lifted the warning about an hour after the first warning.
Prior to the cancellation, the National Weather Service in Anchorage, Alaska, tweeted that a tsunami warning was being extended along the Alaskan coast from Chignik Bay to Unimak Pass, but that Kodiak Island and the Kenai Peninsula were not expected to be affected.
The Hawaii Emergency Management Agency said shortly after the tsunami warning was issued that the islands were not in danger.
Eight aftershocks occurred in the same area of Alaska, including one with a magnitude of 5.0 within three minutes of the initial quake, according to KTUU-TV.
According to the KTUU, residents were advised not to populate dangerous areas without permission from local emergency authorities.
Small changes in sea level are still possible, according to KTUU.
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