Recent earthquakes in Oregon
Oregon's greatest earthquake hazard is the offshore Cascadia subduction zone, which can produce magnitude 9 earthquakes and a major tsunami along the coast. Local crustal faults and volcanic activity in the Cascades add further hazard inland. The last Cascadia earthquake struck in January 1700, known from Japanese tsunami records and coastal geology. In the past 24 hours, Oregon has recorded no earthquakes above the reporting threshold.
Counts include M2.5+ events — the smallest size USGS reports consistently worldwide.
Recent earthquakes
| Magnitude | Time (UTC) | Depth | Location |
|---|---|---|---|
| M3.7 | Sep 7, 21:44 UTC | 24 km | 36 km E of Hydesville, CA |
| M2.6 | Sep 7, 02:35 UTC | 10 km | 134 km W of Dunes City, Oregon |
Notable recent activity
An M3.7 earthquake struck 36 km E of Hydesville, CA at 21:44 UTC on Sep 7 at a depth of 24 km.
An M2.6 earthquake struck 134 km W of Dunes City, Oregon at 02:35 UTC on Sep 7 at a depth of 10 km.
Frequently asked questions
Is Oregon at risk of a major earthquake?
Yes. The offshore Cascadia subduction zone can generate a magnitude 9 earthquake affecting the entire Oregon coast and interior. Local faults and Cascade volcanic activity add to the state's overall hazard.
When was the last Cascadia earthquake?
The most recent great Cascadia earthquake struck on January 26, 1700, dated precisely from the tsunami it sent across the Pacific to Japan and from coastal geologic evidence. Such earthquakes recur on average every few hundred years.
Does Oregon get earthquakes now?
Oregon experiences frequent small earthquakes and occasional moderate ones, such as the 1993 Klamath Falls (M6.0) and Scotts Mills (M5.6) earthquakes. The rarer great Cascadia events pose the largest potential impact.
Nearby regions
Live data from the USGS earthquake feeds. Magnitudes and depths are automated readings and may be revised. Not for emergency use.