Hawaii is under a tsunami watch after a magnitude 7.4 earthquake struck off Russia Saturday night, officials said.

Officials in Hawaii issued a tsunami watch on Saturday evening as a series of earthquakes, including a 7.4 magnitude one, struck off the Russian coast, according to the U.S. Geological Survey. "Tsunami Watch Issued - Prepare to Act!

Hawaiian officials issued a 'tsunami watch' shortly after a massive earthquake measuring 7.5 in magnitude hit off the state's coast last night (Saturday, July 19)