Oregon earthquake risk
Multnomah County has the highest earthquake risk in Oregon, scoring 99.6 out of 100 — rated "Relatively High" by FEMA's National Risk Index.
| # | County | NRI score | Rating |
|---|---|---|---|
| 1 | Multnomah County | 99.6 | Relatively High |
| 2 | Marion County | 99.1 | Relatively High |
| 3 | Washington County | 99 | Relatively High |
| 4 | Lane County | 98.8 | Relatively High |
| 5 | Clackamas County | 98.6 | Relatively High |
| 6 | Coos County | 98.3 | Relatively High |
| 7 | Lincoln County | 97.8 | Relatively Moderate |
| 8 | Linn County | 97.5 | Relatively Moderate |
| 9 | Jackson County | 97.4 | Relatively Moderate |
| 10 | Douglas County | 97.3 | Relatively Moderate |
| 11 | Benton County | 97.2 | Relatively Moderate |
| 12 | Yamhill County | 96.9 | Relatively Moderate |
| 13 | Curry County | 96.7 | Relatively Moderate |
| 14 | Clatsop County | 96.5 | Relatively Moderate |
| 15 | Tillamook County | 95.5 | Relatively Moderate |
| 16 | Polk County | 95.4 | Relatively Moderate |
| 17 | Josephine County | 95.2 | Relatively Moderate |
| 18 | Columbia County | 94.5 | Relatively Moderate |
| 19 | Klamath County | 94.5 | Relatively Moderate |
| 20 | Umatilla County | 87.2 | Relatively Low |
| 21 | Deschutes County | 83 | Relatively Low |
| 22 | Wasco County | 83 | Relatively Low |
| 23 | Baker County | 78.7 | Relatively Low |
| 24 | Union County | 76.7 | Relatively Low |
| 25 | Hood River County | 75.6 | Relatively Low |
| 26 | Lake County | 72.9 | Relatively Low |
| 27 | Malheur County | 71.6 | Relatively Low |
| 28 | Crook County | 69.5 | Relatively Low |
| 29 | Jefferson County | 64.4 | Relatively Low |
| 30 | Morrow County | 57.9 | Very Low |
| 31 | Wallowa County | 37.7 | Very Low |
| 32 | Sherman County | 33.6 | Very Low |
| 33 | Harney County | 31.6 | Very Low |
| 34 | Gilliam County | 27.9 | Very Low |
| 35 | Grant County | 23.4 | Very Low |
| 36 | Wheeler County | 17.9 | Very Low |
Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.
Earthquake risk nationally:
Other hazard risks in Oregon:
Frequently asked questions
What is the highest earthquake risk county in Oregon?
Multnomah County, OR has the highest earthquake risk in Oregon, with a FEMA National Risk Index score of 99.6 out of 100 (rated "Relatively High").
What causes earthquake risk in Oregon?
Earthquake risk reflects expected annual losses from ground shaking. High scores concentrate in California, the Pacific Northwest, Alaska, and the New Madrid Seismic Zone (spanning Missouri, Arkansas, Tennessee, and neighboring states). NOAA's Storm Events Database does not track earthquakes, so recorded event counts are not shown.