State of Oregon seal State of Oregon Department of Geology and Mineral Industries

Tsunamis in Oregon


example BFE determinationTsunamis, the first cousins to earthquakes, can arrive with only slight warning. A tsunami travels across the deep ocean at speeds up to 500 miles per hour. A tsunami generated offshore from Japan or Alaska might not hit the Oregon coast for several hours—but a tsunami following a Cascadia earthquake may hit in less than 30 minutes.


Oregon Tsunami Clearinghouse Website

The source for Oregon coast tsunami evacuation maps and more.



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