M2.4 earthquake 8 km NNE of Halfway, Oregon
A magnitude 2.4 earthquake struck 8 km NNE of Halfway, Oregon on Fri, Dec 15, 2017, 2:15 PM PST (22:15 UTC), 8 km (5 mi) below the surface.
A larger quake followed: M2.5 14 km ENE 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
- 2.4 (ML, local (Richter)), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 2017-12-15 22:15:17 UTC
- Depth
- 7.5 km (4.7 mi), shallow
- Epicenter
- 44.956° N, 117.085° W
- Region
- Oregon
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
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 1.6 km horizontally, 13.6 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- Operator assigned
- Station coverage gap
- 242°, poorly surrounded by stations
- Stations used
- 3
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 2.514 km ENE of Halfway, Oregon · 3214 days ago · 4 km deep · 11 km away · felt by 2
- 2.04 km NNE of Halfway, Oregon · 3212 days ago · 14 km deep · 4 km away
Before
Earthquakes todayOregon earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw61360231. Read Sat, Oct 3, 2026, 4:00 PM UTC.