M1.5 earthquake 0 km ENE of Esperance, Washington
A magnitude 1.5 earthquake struck 0 km ENE of Esperance, Washington on Tue, Jan 20, 1987, 7:02 AM PST (15:02 UTC), 22 km (14 mi) below the surface.
A larger quake followed: M2.8 3 km SW of Swede Heaven, 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, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1987-01-20 15:02:42 UTC
- Depth
- 21.8 km (13.5 mi), shallow
- Epicenter
- 47.791° N, 122.349° 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 0.2 km horizontally, 0.5 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 43°
- Stations used
- 25
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 8 in the 30 days before it.
After
- 1.57 km SSE of Hamilton, Washington · 14498 days ago · 11 km deep · 81 km away
- 1.84 km E of Brinnon, Washington · 14473 days ago · 14 km deep · 39 km away
- 2.33 km S of Seattle, Washington · 14452 days ago · 12 km deep · 24 km away
- 1.61 km SSW of Mercer Island, Washington · 14452 days ago · 5 km deep · 27 km away
- 2.83 km SW of Swede Heaven, Washington · 14446 days ago · 3 km deep · 68 km away
- 1.50 km SSW of Echo Lake, Washington · 14445 days ago · 21 km deep · 22 km away
- 2.13 km SSW of Swede Heaven, Washington · 14444 days ago · 3 km deep · 68 km away
Before
- 1.64 km WNW of Edmonds, Washington · 14507 days ago · 18 km deep · 7 km away
- 2.75 km WNW of Edmonds, Washington · 14507 days ago · 19 km deep · 8 km away
- 2.02 km SE of Woods Creek, Washington · 14512 days ago · 18 km deep · 37 km away
- 1.88 km SE of Hamilton, Washington · 14517 days ago · 7 km deep · 81 km away
- 1.80 km NW of Issaquah, Washington · 14517 days ago · 16 km deep · 37 km away
- 2.49 km W of Gorst, Washington · 14520 days ago · 18 km deep · 45 km away
- 2.019 km SSE of Marblemount, Washington · 14524 days ago · 9 km deep · 96 km away
- 2.01 km W of Kingsgate, Washington · 14527 days ago · 15 km deep · 13 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10215803. Read Sun, Oct 4, 2026, 11:45 AM UTC.