Earthquake Risk in Oregon
All Oregon counties ranked by FEMA National Risk Index earthquake score
Earthquake risk — ground shaking from sudden movement along geologic faults — is rated for 36 of 36 Oregon counties in FEMA's National Risk Index. Multnomah County carries the state's highest earthquake score at 99.6, with $326M in expected annual earthquake losses.
6 Oregon counties are rated High or Very High for earthquake, and expected annual losses from earthquake total roughly $1.20B statewide. The full ranking below links to each county's complete 18-hazard risk profile.
County Rankings — Earthquake
| # | County | Earthquake Score | Rating | Ann. Freq. | Ann. Loss |
|---|---|---|---|---|---|
| 1 | Multnomah County | High | 0.02 / yr | $326M | |
| 2 | Marion County | High | 0.02 / yr | $122M | |
| 3 | Washington County | High | 0.01 / yr | $163M | |
| 4 | Lane County | High | 0.02 / yr | $95M | |
| 5 | Clackamas County | High | 0.02 / yr | $109M | |
| 6 | Coos County | High | 0.02 / yr | $52M | |
| 7 | Lincoln County | Medium | 0.02 / yr | $31M | |
| 8 | Linn County | Medium | 0.02 / yr | $38M | |
| 9 | Jackson County | Medium | 0.01 / yr | $35M | |
| 10 | Douglas County | Medium | 0.01 / yr | $26M | |
| 11 | Benton County | Medium | 0.02 / yr | $41M | |
| 12 | Yamhill County | Medium | 0.02 / yr | $34M | |
| 13 | Curry County | Medium | 0.02 / yr | $18M | |
| 14 | Clatsop County | Medium | 0.02 / yr | $21M | |
| 15 | Tillamook County | Medium | 0.02 / yr | $14M | |
| 16 | Polk County | Medium | 0.02 / yr | $19M | |
| 17 | Josephine County | Medium | 0.02 / yr | $12M | |
| 18 | Klamath County | Medium | 0.02 / yr | $11M | |
| 19 | Columbia County | Medium | 0.02 / yr | $15M | |
| 20 | Umatilla County | Low | 0.01 / yr | $3M | |
| 21 | Deschutes County | Low | 0.00 / yr | $3M | |
| 22 | Wasco County | Low | 0.01 / yr | $2M | |
| 23 | Baker County | Low | 0.00 / yr | $1M | |
| 24 | Union County | Low | 0.00 / yr | $1M | |
| 25 | Hood River County | Low | 0.01 / yr | $2M | |
| 26 | Lake County | Low | 0.02 / yr | $818K | |
| 27 | Malheur County | Low | 0.00 / yr | $830K | |
| 28 | Crook County | Low | 0.00 / yr | $684K | |
| 29 | Jefferson County | Low | 0.00 / yr | $631K | |
| 30 | Morrow County | Very Low | 0.00 / yr | $438K | |
| 31 | Wallowa County | Very Low | 0.00 / yr | $95K | |
| 32 | Sherman County | Very Low | 0.00 / yr | $105K | |
| 33 | Harney County | Very Low | 0.01 / yr | $72K | |
| 34 | Gilliam County | Very Low | 0.00 / yr | $49K | |
| 35 | Grant County | Very Low | 0.00 / yr | $27K | |
| 36 | Wheeler County | Very Low | 0.01 / yr | $17K |
36 Oregon counties with measurable earthquake risk. See the national earthquake ranking or all Oregon counties by overall risk.
Frequently Asked Questions
Which Oregon county has the highest earthquake risk?
Multnomah County has the highest FEMA earthquake risk score in Oregon at 99.6 (High), with $326M in expected annual losses and about 0.02 events per year.
How many Oregon counties face significant earthquake risk?
36 Oregon counties record measurable earthquake risk in FEMA's National Risk Index; 6 of them are rated High or Very High.