The July 29 magnitude 8.8 earthquake off the coast of Kamchatka, Russia, is now tied for the 6th-largest recorded in the world (Fig. 1). It was followed immediately by tsunami alerts that spanned the Pacific, including Alaska.
On July 16, 2025, at 12:37 PM Alaska time, a magnitude 7.3 earthquake struck offshore of the Alaska Peninsula region (Figure 1), two years after a previous
Largest earthquake in 50 years: What we know so far
At 10:15pm Alaska time on July 28, 2021 a magnitude 8.2 earthquake struck offshore of the Alaska Peninsula, the largest U.S. earthquake in 50 years.
Triggered earthquakes and (not) predictions
We’ve had a surge in inquiries in the past several days, related to Japan’s magnitude 7.1 earthquake on August 8, 2024.
Earthquakes reported in Alaska so far this year: 17586
