Tsunami waves reached Hawaii and the West Coast after one of the strongest earthquakes in recorded history, a magnitude 8.8 temblor, struck off Russia's Kamchatka Peninsula on July 29 before most of the warnings were downgraded hours later.

A massive earthquake off the coast of Kamchatka, Russia has triggered a series of tsunami alerts for Hawaii, Alaska, and the U.S. West coast. The earthquake was measured at an 8.7 on the Richter scale according to the U.