M1.8 earthquake 21 km NNW of Amboy, Washington
A magnitude 1.8 earthquake struck 21 km NNW of Amboy, Washington on Tue, Jul 3, 2001, 11:38 PM PDT (06:38 UTC), 17 km (11 mi) below the surface.
A larger quake followed: M2.2 3 km NW of Mulino, Oregon. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.8 (md), micro
- Local time
- UTC
- 2001-07-04 06:38:03 UTC
- Depth
- 17.5 km (10.9 mi), shallow
- Epicenter
- 46.096° N, 122.528° 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, 0.8 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 60°
- Stations used
- 28
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 5 in the 30 days before it.
After
- 2.23 km NW of Mulino, Oregon · 9214 days ago · 27 km deep · 95 km away
- 1.67 km SE of Mineral, Washington · 9207 days ago · 16 km deep · 72 km away
- 1.66 km ESE of Mossyrock, Washington · 9196 days ago · 20 km deep · 45 km away
- 1.622 km N of Amboy, Washington · 9193 days ago · 12 km deep · 4 km away
- 1.721 km N of Amboy, Washington · 9188 days ago · 14 km deep · 4 km away
- 1.817 km W of Packwood, Washington · 9167 days ago · 2 km deep · 77 km away
- 1.617 km E of Kelso, Washington · 9166 days ago · 12 km deep · 13 km away
Before
- 1.616 km ENE of Yacolt, Washington · 9220 days ago · 14 km deep · 32 km away
- 3.311 km NNE of Ashford, Washington · 9223 days ago · 6 km deep · 95 km away · felt by 20
- 2.114 km ESE of Ashford, Washington · 9232 days ago · 6 km deep · 86 km away
- 1.912 km NNE of Ashford, Washington · 9232 days ago · 6 km deep · 95 km away
- 1.92 km WNW of Metzger, Oregon · 9236 days ago · 25 km deep · 74 km away
Earthquakes todayWashington earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw10531958. Read Wed, Sep 30, 2026, 9:48 AM UTC.