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A major earthquake struck between Russia and Alaska on Monday night.
It was measured at magnitude-7.4 before being upgraded to magnitude-7.7, which is the second largest earthquake measured around the globe this year.
A M-7.4 #earthquake just hit off the coast of Russia. Hazardous #tsunami waves are possible within 300 km (186 miles) of the epicenter. pic.twitter.com/kNssP1hrPF
— AccuWeather (@breakingweather) July 17, 2017
The earthquake was powerful enough to trigger a tsunami warning for some coastal cities in Alaska and Russia.
The risk level for the B.C. coast was evaluated and no tsunami warning was issued.
Monday night’s earthquake was the rest of transform faulting on or near the plate boundary between the Pacific and North American plates.
Update: Tsunami advisory issued for portions of Alaska’s Aleutian Islands after powerful earthquake https://t.co/vZPSv0LirV pic.twitter.com/yK4LnwqYCa
— BuzzFeed Storm (@BuzzFeedStorm) July 18, 2017
It’s the largest incident along these two plates since a magnitude-7.8 earthquake that occurred all the way back on December 17th, 1929.
A magnitude-6.2 foreshock preceded the earthquake on Monday morning and there were 10 aftershocks of magnitude-4.4 or more that were measured as well.