7.4 Earthquake Off the Coast of Alaska; ‘Hazardous Tsunami Waves’ Possible’
A powerful quake of magnitude 7.4 struck in the northern Pacific Ocean between the tip of Alaska’s Aleutian Islands and Russia’s Kamchatka Peninsula, the U.S. Geological Survey said on Monday.
The quake struck at 1:34 a.m. on Tuesday (at 2334 GMT on Monday) some 125 miles (200 km) from the city of Nikol’skoye on Bering island off the Kamchatka Peninsula. The epicenter was west of Attu, the westernmost and largest island in the Near Islands group of Alaska’s remote Aleutian Islands.
The earthquake, initially reported as a magnitude 7.7, was very shallow — only 7.4 miles (10 km) below the seabed, which would have amplified its effect, but it was quite far from any mainland.
The U.S. Pacific Tsunami Warning Center said “hazardous tsunami waves are possible for coasts located within 300 km (186 miles) of the earthquake epicenter.”
Tsunami waves, however, were unlikely to reach Kamchatka’s eastern coast, some 500 km (310 miles) away.
The quake was followed by several aftershocks, including a couple above magnitude 5.0.
(Reporting by Sandra Maler; Editing by Peter Cooney and Diane Craft)