Broken Records

Largest earthquake in the United States

The current largest earthquake in the united states record is 9.2 magnitude, held by Great Alaska earthquake, set on March 27, 1964. Last checked October 9, 2026.

9.2

magnitude

Great Alaska earthquake

Prince William Sound, Alaska, United States, 1964

Holder
Great Alaska earthquake
Record
9.2 magnitude
Exact figure
Magnitude 9.2
Location
Prince William Sound, Alaska, United States
Date set
March 27, 1964
Last checked
October 9, 2026

Sources

Spotted an error or a newer record? Use the form below with a source link.

Spotted something out of date?