M2.1 earthquake 6 km N of Satsop, Washington
A magnitude 2.1 earthquake struck 6 km N of Satsop, Washington on Fri, Jul 9, 1999, 12:45 AM PDT (07:45 UTC), 39 km (24 mi) below the surface.
A larger quake followed: M3.1 20 km WSW of Brinnon, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.1 (Md, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1999-07-09 07:45:42 UTC
- Depth
- 39.2 km (24.3 mi), shallow
- Epicenter
- 47.063° N, 123.468° 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 0.5 km horizontally, 0.4 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 86°
- Stations used
- 49
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 4 in the 30 days before it.
After
- 2.36 km NNE of Satsop, Washington · 9947 days ago · 39 km deep · 1 km away
- 1.51 km SSW of Pacific, Washington · 9939 days ago · 17 km deep · 94 km away
- 1.77 km NNE of Satsop, Washington · 9914 days ago · 40 km deep · 1 km away
- 3.120 km WSW of Brinnon, Washington · 9906 days ago · 46 km deep · 67 km away
- 1.54 km E of Dash Point, Washington · 9902 days ago · 22 km deep · 87 km away
- 1.66 km SW of Lofall, Washington · 9900 days ago · 16 km deep · 97 km away
- 2.9Olympic Peninsula, Washington · 9891 days ago · -1 km deep · 55 km away
- 2.85 km SSW of Shelton, Washington · 9889 days ago · 46 km deep · 29 km away
Before
- 1.510 km NNE of Satsop, Washington · 9947 days ago · 39 km deep · 4 km away
- 5.88 km N of Satsop, Washington · 9953 days ago · 40 km deep · 1 km away
- 3.15 km NNE of Dash Point, Washington · 9954 days ago · 27 km deep · 88 km away
- 1.64 km E of Dash Point, Washington · 9977 days ago · 24 km deep · 87 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10474828. Read Fri, Oct 2, 2026, 12:29 PM UTC.