M1.5 earthquake 23 km SSE of Kittitas, Washington
A magnitude 1.5 earthquake struck 23 km SSE of Kittitas, Washington on Mon, Mar 2, 1987, 11:07 PM PST (07:07 UTC), 7 km (4 mi) below the surface.
A larger quake followed: M1.6 5 km SW of Entiat, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.5 (md), micro
- Local time
- UTC
- 1987-03-03 07:07:48 UTC
- Depth
- 6.5 km (4.1 mi), shallow
- Epicenter
- 46.798° N, 120.263° 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 0.8 km horizontally, 1.0 km in depth
- Magnitude uncertainty
- ±0.14
- Depth from
- From location
- Station coverage gap
- 78°
- Stations used
- 16
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 2 in the 30 days before it.
After
- 1.65 km SW of Entiat, Washington · 14440 days ago · 3 km deep · 93 km away
- 1.55 km WSW of Entiat, Washington · 14433 days ago · 4 km deep · 95 km away
- 1.71 km ENE of Entiat, Washington · 14430 days ago · 4 km deep · 98 km away
- 1.528 km SW of White Swan, Washington · 14427 days ago · -1 km deep · 87 km away
- 2.47 km NE of Royal City, Washington · 14417 days ago · 1 km deep · 56 km away
- 2.023 km SW of Vantage, Washington · 14409 days ago · 3 km deep · 4 km away
- 1.81 km WNW of Waterville, Washington · 14392 days ago · 5 km deep · 96 km away
Before
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10214988. Read Tue, Sep 22, 2026, 9:40 AM UTC.