Portland, OR has a high earthquake risk, with a total of 319 earthquakes since 1931. The USGS database shows that there is a 30.92% chance of a major earthquake within 50km of Portland, OR within the next 50 years. The largest earthquake within 30 miles of Portland, OR was a 3.9 Magnitude in 1989.
View the probability of a major earthquake within the next 50 years in Portland, OR.
View the number of earthquake incidents in Portland, OR by year that are more than 2.5 Magnitude.
Total Number of Earthquakes in Portland, OR within 30 miles. All distances and depths in the table are measured in miles.