A strong earthquake centered in the Gulf of Alaska just after midnight Tuesday, generated small tsunami waves along the southern coast of Alaska than originally feared.

The magnitude 7.9 quake, revised downward from a previous estimation of 8.2, struck just before 1:32 a.m. PST about 175 miles southeast of Kodiak, Alaska, or about 350 miles south of Anchorage.

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All tsunami warnings have been dropped along the coast of southern Alaska, including the Aleutian Islands, as well as the coast of British Columbia, Canada. Tsunami advisories were later canceled as well.

Tsunami watches earlier posted for the U.S. West Coast and Hawaii have also been dropped, meaning there is no tsunami threat along the Washington, Oregon, California and Hawaiian coasts.

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Here were the estimated times of arrival of the first tsunami waves, in Alaska standard time, according to the Pacific Tsunami Warning Center:

* Alaska Kodiak 0145 AKST Elfin Cove 0150 AKST Seward 0155 AKST Yakutat 0200 AKST Sitka 0200 AKST Valdez 0215 AKST Cordova 0220 AKST Sand Point 0220 AKST Unalaska 0240 AKST Homer 0250 AKST Craig 0300 AKST Cold Bay 0300 AKST Adak 0305 AKST Shemya 0345 AKST Saint Paul 0400 AKST

Residents were seen evacuating from Kodiak, Alaska, early Tuesday morning. In Seward, fire chief Eddie Athey told the Associated Press that a "controlled evacuation" took place and there was no panic.

"Boy, I hope this stops soon because it's just getting worse," he thought to himself as the 90-second quake persisted. He told the AP that there was no known damage in Seward.

According to a press release from the City of Kodiak, tide levels rose 3 feet over a period of minutes in the channel in Kodiak . Schools were opened as shelters on Kodiak Island, and about 500 people fled to those buildings, Kodiak Island Borough School District superintendent Larry LeDoux told the AP, adding that evacuees remained calm.

Minimal impacts were seen along the U.S. West Coast. Wave heights rose less than one foot along the Oregon coast, the Medford office of the National Weather Service reported.