Magnitude 8.8 Quake Off Kamchatka Triggers Pacific Tsunami Warnings

A magnitude 8.8 earthquake struck off Russia’s Kamchatka Peninsula on 30 July 2025, local time. Tsunami warnings went out across the Pacific.

Key Facts

• Magnitude: 8.8
• Time: 23:24 UTC on 29 July 2025
• Largest quake worldwide since Japan’s 2011 earthquake
• Biggest wave outside Russia: about 1.7 m at Kahului, Maui
• Japan’s highest: 1.4 m at Kuji Port

Warnings

Warnings went out in Japan, Hawaii and other places. Most were later downgraded.

The BBC reported more than two million people were told to evacuate.

Frequently Asked Questions

How big was the earthquake?

Magnitude 8.8.

Where were the biggest waves outside Russia?

Hawaii, with about 1.7 m at Maui.

Was it the biggest since 2011?

Yes, the largest since Japan’s 2011 quake.

Conclusion

The tsunami was smaller than feared outside Russia.

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