M2.7 earthquake 82 km WSW of Brookings, Oregon
A magnitude 2.7 earthquake struck 82 km WSW of Brookings, Oregon on Mon, Nov 23, 1987, 1:38 PM PST (21:38 UTC), 6 km (4 mi) below the surface.
A larger quake followed: M3.1 103km W of Trinidad, CA. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.7 (Md, duration), micro
- Magnitude from
- Northern California Seismic System
- Local time
- UTC
- 1987-11-23 21:38:15 UTC
- Depth
- 5.8 km (3.6 mi), shallow
- Epicenter
- 41.892° N, 125.259° 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 7.9 km horizontally, 2.9 km in depth
- Magnitude uncertainty
- ±0.09
- Depth from
- From location
- Station coverage gap
- 298°, poorly surrounded by stations
- Stations used
- 9
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 3.1103km W of Trinidad, CA · 14175 days ago · 15 km deep · 91 km away
- 2.7off the coast of Northern California · 14167 days ago · 4 km deep · 73 km away
- 2.315 km S of Bertsch-Oceanview, California · 14134 days ago · 4 km deep · 95 km away
Before
Earthquakes todayOregon earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event nc10085794. Read Thu, Oct 1, 2026, 7:35 PM UTC.