After review by the China Earthquake Network Center, the magnitude of the 7.9 magnitude earthquake off the east coast of Kamchatka was revised to magnitude 8.7 at 7:24 on July 30.

After review by the China Earthquake Network Center, the magnitude of the 7.9 magnitude earthquake off the east coast of Kamchatka was revised to magnitude 8.7 at 7:24 on July 30.