Late Monday night, a massive magnitude 8.8 earthquake struck off Russia’s Kamchatka Peninsula, shaking up the Pacific Rim and triggering tsunami alerts from Alaska to California—including watches and warnings for the Oregon Coast. According to the U.S. Geological Survey, the powerful quake hit at 7:24 p.m. ET (4:24 p.m. PT), centered roughly 78 miles southeast of Petropavlovsk-Kamchatsky, Russia, at a depth of just 12 miles. The quake generated multiple strong aftershocks, some as high as...