M1.6 earthquake 33 km ESE of Packwood, Washington
A magnitude 1.6 earthquake struck 33 km ESE of Packwood, Washington on Sun, Jul 25, 1999, 8:27 PM PDT (03:27 UTC), 0 km (0 mi) below the surface.
A larger quake followed: M2.7 7 km N of Outlook, 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, duration), micro
- Magnitude from
- Pacific Northwest Seismic Network
- Local time
- UTC
- 1999-07-26 03:27:44 UTC
- Depth
- -0.3 km (-0.2 mi), shallow
- Epicenter
- 46.447° N, 121.305° 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 0.6 km horizontally, 12.1 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- Operator assigned
- Station coverage gap
- 71°
- Stations used
- 37
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 0 in the 30 days before it.
After
- 1.517 km NNE of Amboy, Washington · 9927 days ago · 7 km deep · 94 km away
- 1.616 km SE of Carbonado, Washington · 9922 days ago · 6 km deep · 75 km away
- 1.516 km SE of Carbonado, Washington · 9922 days ago · 7 km deep · 74 km away
- 1.731 km SSE of Greenwater, Washington · 9903 days ago · -1 km deep · 52 km away
- 1.54 km NE of Cliffdell, Washington · 9902 days ago · -1 km deep · 62 km away
- 1.628 km ENE of Ashford, Washington · 9889 days ago · -3 km deep · 56 km away
- 1.625 km N of Packwood, Washington · 9879 days ago · -3 km deep · 49 km away
- 2.77 km N of Outlook, Washington · 9877 days ago · 11 km deep · 92 km away
- 1.66 km N of Outlook, Washington · 9876 days ago · 7 km deep · 92 km away
- 1.57 km N of Outlook, Washington · 9873 days ago · 11 km deep · 92 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10478218. Read Sun, Oct 4, 2026, 9:26 AM UTC.