M1.6 earthquake 12 km SSW of Morton, Washington
A magnitude 1.6 earthquake struck 12 km SSW of Morton, Washington on Thu, Feb 19, 1976, 12:18 AM PST (08:18 UTC), 15 km (9 mi) below the surface.
A larger quake followed: M1.8 14 km SE of Mossyrock, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.6 (md), micro
- Local time
- UTC
- 1976-02-19 08:18:10 UTC
- Depth
- 14.5 km (9.0 mi), shallow
- Epicenter
- 46.459° N, 122.350° 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 0.7 km horizontally, 1.9 km in depth
- Magnitude uncertainty
- ±0.15
- Depth from
- From location
- Station coverage gap
- 149°
- Stations used
- 8
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 4 in the 30 days before it.
After
- 1.814 km SE of Mossyrock, Washington · 18477 days ago · 9 km deep · 2 km away
- 1.618 km SSE of Packwood, Washington · 18477 days ago · 12 km deep · 60 km away
- 1.89 km NE of Ashford, Washington · 18447 days ago · 6 km deep · 51 km away
- 1.622 km NE of Ashford, Washington · 18446 days ago · 20 km deep · 64 km away
- 2.24 km NNE of Mossyrock, Washington · 18433 days ago · 16 km deep · 14 km away
Before
- 1.612 km SE of Mossyrock, Washington · 18483 days ago · 14 km deep · 2 km away
- 1.56 km W of DuPont, Washington · 18488 days ago · 51 km deep · 77 km away
- 1.65 km WSW of Home, Washington · 18499 days ago · 16 km deep · 95 km away
- 1.811 km NE of Ashford, Washington · 18505 days ago · 8 km deep · 53 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10840718. Read Tue, Sep 22, 2026, 11:13 AM UTC.