M1.5 earthquake 38 km NNE of Amboy, Washington
A magnitude 1.5 earthquake struck 38 km NNE of Amboy, Washington on Tue, Sep 25, 2001, 11:03 AM PDT (18:03 UTC), 0 km (0 mi) below the surface.
A larger quake followed: M2.1 25 km ENE of Packwood, 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
- 2001-09-25 18:03:25 UTC
- Depth
- 0.3 km (0.2 mi), shallow
- Epicenter
- 46.203° N, 122.189° 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 0.1 km horizontally, 0.1 km in depth
- Magnitude uncertainty
- ±0.03
- Depth from
- From location
- Station coverage gap
- 55°
- Stations used
- 18
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 11 in the 60 days after this one and 4 in the 30 days before it.
After
- 1.917 km S of Morton, Washington · 9132 days ago · 17 km deep · 23 km away
- 1.62 km S of Beaverton, Oregon · 9127 days ago · 24 km deep · 95 km away
- 2.125 km ENE of Packwood, Washington · 9113 days ago · 4 km deep · 83 km away
- 1.52 km E of Hockinson, Washington · 9113 days ago · 10 km deep · 55 km away
- 2.012 km E of Mount Hood, Oregon · 9112 days ago · 3 km deep · 95 km away
- 1.737 km NNE of Amboy, Washington · 9105 days ago · 0 km deep · 0 km away
- 1.76 km ESE of Carbonado, Washington · 9104 days ago · 4 km deep · 98 km away
- 2.110 km S of Mossyrock, Washington · 9093 days ago · 18 km deep · 34 km away
- 1.52 km NE of Brush Prairie, Washington · 9090 days ago · 17 km deep · 56 km away
- 1.733 km NNE of Amboy, Washington · 9086 days ago · 11 km deep · 10 km away
- 1.617 km NNE of Ashford, Washington · 9084 days ago · 10 km deep · 80 km away
Before
- 1.615 km SSW of Morton, Washington · 9145 days ago · 16 km deep · 27 km away
- 1.54 km ESE of Mossyrock, Washington · 9149 days ago · 19 km deep · 39 km away
- 1.619 km E of Kelso, Washington · 9157 days ago · 13 km deep · 37 km away
- 2.115 km ESE of Carbonado, Washington · 9161 days ago · 16 km deep · 95 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10547558. Read Wed, Sep 30, 2026, 4:11 PM UTC.