M2.6 earthquake 21 km NNW of Halfway, Oregon
A magnitude 2.6 earthquake struck 21 km NNW of Halfway, Oregon on Mon, Aug 14, 2017, 7:09 PM PDT (02:09 UTC), 2 km (1 mi) below the surface.
A larger quake followed: M3.0 22 km N of Halfway, Oregon. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.6 (ML, local (Richter)), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 2017-08-15 02:09:01 UTC
- Depth
- 2.2 km (1.4 mi), shallow
- Epicenter
- 45.060° N, 117.201° W
- Region
- Oregon
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Magnitude estimates
Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.
| Mag. | Scale | Computed by | Notes |
|---|---|---|---|
| 2.58 | ML, local (Richter) | Pacific Northwest Seismic Network | Preferred · Final · ±0.182 · 4 stations |
| 2.6 | ML, local (Richter) | USGS National Earthquake Information Center | Reviewed · ±0.182 · 4 stations |
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.5 km horizontally, 7.6 km in depth
- Magnitude uncertainty
- ±0.18
- Depth from
- From location
- Station coverage gap
- 224°, poorly surrounded by stations
- Stations used
- 5
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 1 in the 30 days before it.
After
- 2.417 km NNW of Halfway, Oregon · 3336 days ago · 15 km deep · 4 km away
- 2.521 km N of Halfway, Oregon · 3331 days ago · 1 km deep · 6 km away
- 1.621 km N of Halfway, Oregon · 3331 days ago · 4 km deep · 8 km away
- 3.022 km N of Halfway, Oregon · 3331 days ago · 2 km deep · 6 km away
- 2.220 km N of Halfway, Oregon · 3330 days ago · 5 km deep · 5 km away
- 2.339 km WNW of White Bird, Idaho · 3319 days ago · 5 km deep · 95 km away · felt by 1
- 2.626 km NW of New Meadows, Idaho · 3312 days ago · 5 km deep · 51 km away
Before
Earthquakes todayOregon earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw61313971 (also filed as us2000a89k). Read Sat, Oct 3, 2026, 7:53 AM UTC.