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Regional Seismicity

Historical earthquakes magnitude 5.0 and larger

Map of historical earthquakes magnitude 5.0 and larger

Magnitude Legend

Earthquakes magnitude 2.0 and larger, 1980 - present

Map of earthquakes magnitude 2.0 and larger, 1980 - present

Magnitude Legend

Largest earthquakes in the region

Date Magnitude Type Longitude Latitude
1872/12/15 7.4 ML -121.40 48.60
1904/03/17 6.0 ML -124.00 47.50
1909/01/11 6.0 ML -122.80 49.00
1939/11/13 5.7 ML -122.40 47.50
1946/02/15 5.7 ML -122.90 47.30
1946/06/23 7.3 ML -125.34 49.76
1949/04/13 7.1 ML -122.60 47.20
1965/04/29 6.5 ML -122.30 47.40
1999/07/03 6.1 Mw -123.46 47.07
1999/07/03 6.1 Mw -123.53 47.08
2001/02/28 6.8 Mw -122.71 47.15