M2.3 earthquake 22 km NNW of Carson, Washington
A magnitude 2.3 earthquake struck 22 km NNW of Carson, Washington on Thu, Jan 22, 1987, 9:56 PM PST (05:56 UTC), 8 km (5 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.3 (md), micro
- Local time
- UTC
- 1987-01-23 05:56:37 UTC
- Depth
- 8.1 km (5.0 mi), shallow
- Epicenter
- 45.900° N, 121.974° W
- Region
- Washington
- 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 0.4 km horizontally, 0.4 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 72°
- Stations used
- 34
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 0 in the 30 days before it.
After
- 1.85 km WSW of North Bonneville, Washington · 14470 days ago · 3 km deep · 32 km away
- 1.66 km ESE of Hockinson, Washington · 14465 days ago · 8 km deep · 40 km away
- 2.328 km SW of White Swan, Washington · 14459 days ago · 2 km deep · 83 km away
- 2.04 km SSW of Morton, Washington · 14454 days ago · 16 km deep · 74 km away
- 1.924 km ENE of Yacolt, Washington · 14436 days ago · 3 km deep · 12 km away
- 1.528 km SW of White Swan, Washington · 14428 days ago · -1 km deep · 83 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10216198. Read Tue, Sep 22, 2026, 8:32 PM UTC.