A powerful magnitude 8.8 earthquake hit off Kamchatka on July 30, 2025, after being “upgraded twice to 8.8.”

The epicenter lay about 119–136 km from Petropavlovsk-Kamchatsky at a shallow depth near 20 km.

2. Historic Scale

This is the strongest regional quake since 1952, which caused “9 m tsunamis” and thousands of deaths.

Globally, it ranks among the top ten most powerful ever recorded.

3. Local Impacts & Tsunami Effects

Severo-Kurilsk experienced heavy tsunami flooding, and “around 2,000 people moved to safety.”

Waves reached 4 m locally. Petropavlovsk saw shaking, outages, a collapsed kindergarten wall, and minor injuries.

Japan evacuated up to “1.9 million people” as waves of 30–50 cm arrived.

Hawaii saw 4-foot waves, and the U.S. West Coast issued advisories.

4. Wider Alerts & Aftershocks

Many Pacific nations activated warnings with limited impacts.

Aftershocks up to M6.9 occurred, with forecasts of more “up to magnitude 7.5.”