A magnitude 7.8 earthquake that struck Thursday off Russia’s Petropavlovsk-Kamchatsky region has triggered a tsunami advisory for Alaska’s Aleutian Islands, according to the U.S. Tsunami Warning System.

The threat to Washington state and other Pacific Coast regions was “undetermined” and “still being evaluated,” the Washington Emergency Management Division said in a Facebook post at 12:40 p.m. Sept. 18. In a follow-up post at 1:41 p.m., the agency said there “is no tsunami threat to Washington at this time.”

“Updates will follow as more data is gathered,” the agency said. “For more information, check www.tsunami.gov.”

The earthquake follows the massive 8.8-magnitude earthquake that struck off Russia’s coast on July 29. That quake triggered multiple tsunami alerts for the United States W

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