M3.5 earthquake 131 km WSW of Pistol River, Oregon
A magnitude 3.5 earthquake struck 131 km WSW of Pistol River, Oregon on Fri, Jul 3, 1987, 3:39 PM PDT (22:39 UTC), 25 km (16 mi) below the surface.
A larger quake followed: M4.1 134 km WSW of Pistol River, Oregon. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.5 (ML, local (Richter)), minor
- Magnitude from
- Northern California Seismic System
- Local time
- UTC
- 1987-07-03 22:39:28 UTC
- Depth
- 25.0 km (15.5 mi), shallow
- Epicenter
- 41.826° N, 125.867° 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 |
|---|---|---|---|
| 3.5 | ML, local (Richter) | Northern California Seismic System | Preferred · Final · 4 stations |
| 3.4 | ML, local (Richter) | USGS National Earthquake Information Center | Reviewed |
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 2.5 km horizontally, 13.1 km in depth
- Depth from
- From location
- Station coverage gap
- 302°, poorly surrounded by stations
- Stations used
- 28
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 5 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.1134 km WSW of Pistol River, Oregon · 14336 days ago · 4 km deep · 2 km away
- 3.0137 km WSW of Pistol River, Oregon · 14335 days ago · 4 km deep · 6 km away
- 4.0163 km W of Big Lagoon, California · 14289 days ago · 5 km deep · 67 km away
- 3.682 km WSW of Crescent City, California · 14287 days ago · 4 km deep · 78 km away
- 3.8148 km WSW of Pistol River, Oregon · 14281 days ago · 5 km deep · 17 km away
Before
Earthquakes todayOregon earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event nc10084319 (also filed as usp00036ab). Read Fri, Oct 2, 2026, 1:19 PM UTC.