1.6
Earthquake Details: 6 km W of Riddle, Oregon
Aug 20, 2026, 19:39:24
A magnitude 1.6 earthquake occurred near 6 km W of Riddle, Oregon on Aug 20, 2026 at 19:39:24. The seismic event was recorded at a depth of -0.81 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Explosion
Regional Seismicity
Technical Details
Depth-0.81 km
Significance41
Latitude42.9452
Longitude-123.4383
Event IDuw714082332
Magnitude1.6
Updated:Aug 20, 2026, 20:03:02 UTC
External Resources
View on USGS Official SiteLoading map...
Time & depth
- Local time
- Aug 20, 2026, 12:39:24 PDT
- UTC
- Aug 20, 2026, 19:39:24 UTC
-0.81 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 2
You may also find these tools useful
Earthquake information is automatically aggregated from the official seismic agencies listed below. Preliminary measurements can change as agencies review an event; use local emergency authorities for safety decisions. Latest successful data update: Aug 20, 2026, 20:03 UTC.
Data sources:
- USGS — Credit: U.S. Geological Survey.
- EMSC — Credit: EMSC/CSEM. Event catalogue data are provided under CC BY 4.0. CC BY 4.0
- JMA — Source: Japan Meteorological Agency (JMA).
- Geoscience Australia — Based on Australian Earthquakes data by Geoscience Australia. © Commonwealth of Australia. Licensed under CC BY 4.0; the section 5 disclaimer applies. CC BY 4.0
- GeoNet — We acknowledge the New Zealand GeoNet programme and its sponsors NHC, Earth Sciences NZ, LINZ, NEMA and MBIE for providing earthquake data.