A tsunami warning was issued a few hours after a powerful earthquake struck.
A magnitude 8.2 earthquake struck the southern coast of Alaska on Wednesday night, warning of a tsunami in parts of the state and a tsunami clock as far as Hawaii. They were raised within hours. It was the largest earthquake in the United States in 50 years, say seismologists.
The quake struck about 75 miles [75 km] southeast of Chignik, Alaska, at about 10:15 p.m. local time, says the United States Geological Survey.
Earthquakes have been reported throughout the Alaska Peninsula and Kodiak Island, reports the Alaska Earthquake Center. In Kodiak, tsunamis erupted and people cried and people began moving to higher ground as word of warning spread.
The warning issued by the National Tsunami Warning Center was active for about two hours in southern Alaska, the Alaska Peninsula and the Aleutian Islands.
The tsunami clock was also briefly hit Hawaii and canceled more than an hour later, Gov David Ige tweeted. The National Weather Service’s office in the Beach, Hawaii, has warned that “more and more tsunami waves could occur,” according to the first quake.
Tsunamis form like a series of waves caused by massive or sudden ocean migration, say meteorologists, citing major earthquakes below or near the sea as the most common cause. Waves come out in all directions from the turbulence and can travel across oceans.
The quake recorded on Wednesday was one of only 17 since 1990 with an magnitude of 8.2 or more worldwide, according to the U.S.G.S. data.
There were at least a dozen earthquakes recorded in Alaska, U.S.G.S. it said. One of the largest, about 70 miles southeast of Perryville, on the Alaska Peninsula, weighed 6.1.