Historic Earthquakes

Near Lake Chelan, Washington
1872 12 15 05:40 UTC (local 12/14)
Magnitude 6.8

Largest Earthquake in Washington

Isoseismal Map

Isoseismals are based on intensity estimates from data.

Isoseismal map

Abridged from Seismicity of the United States, 1568-1989 (Revised), by Carl W. Stover and Jerry L. Coffman, U.S. Geological Survey Professional Paper 1527, United States Government Printing Office, Washington: 1993.