VLADIVOSTOK, July 22 (Xinhua) -- A 6.5 magnitude earthquake struck the Avacha Bay area off Russia's Kamchatka Peninsula on Tuesday, as the region continues to experience aftershocks following a series of powerful quakes over the weekend, local authorities reported.

The Pacific Tsunami Warning Centre announced the end of a tsunami threat to Russia's Kamchatka Peninsula after five strong earthquakes, the largest at 7.4 magnitude, struck offshore. Initial tsunami warnings were downgraded as the situation stabilized.

The watch was issued at 9:03 p.m. after a 7.4 magnitude earthquake off Russia’s Kamchatka Peninsula, but canceled after there was no threat to Hawaii.