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! A Tsunami Watch means a tsunami is possible, but the situation is still being evaluated," the Honolulu Department of Emergency Management said in an alert posted on social media.

Those alerts followed the first of several notable quakes that hit within about an hour off the coast of Petropavlovsk-Kamchatsky, Russia, according to USGS.

The first was a 7.0 magnitude quake in the sea about 142 km east of the city, USGS said, citing preliminary data.

Within moments, a 6.7 magnitude quake struck some 130 km east of the city, followed by a series of quakes with magnitudes initially measured at 7.4, 6.7 and 6.6, according to USGS.

This is a developing story. Please check back for updates.

A 7.4 magnitude earthquake struck near Petropavlovsk-Kamchatsky, Russia, USGS said.{ai:summary}Hawaii officials issued a tsunami watch after a series of significant earthquakes, including a 7.4 magnitude quake, struck off the Russian coast. The Honolulu Department of Emergency Management alerted residents that a tsunami is possible while the situation is being assessed.The earthquakes occurred near Petropavlovsk-Kamchatsky, Russia, with the initial quake measuring 7.0 and followed by several others of similar magnitudes. This is an ongoing situation, and updates are expected. #foreignaffairs

Hawaii issues tsunami watch as series of earthquakes strike off Russian coast

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