M1.0 earthquake 5 km S of Grapeview, Washington
A magnitude 1.0 earthquake struck 5 km S of Grapeview, Washington on Thu, Sep 17, 2026, 11:16 PM PDT (06:16 UTC), 25 km (16 mi) below the surface.
A larger quake followed: M2.1 6 km ENE of Bell Hill, Washington. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 1.0 (ml), micro
- Local time
- UTC
- 2026-09-18 06:16:43 UTC
- Depth
- 25.3 km (15.7 mi), shallow
- Epicenter
- 47.282° N, 122.838° 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. If you felt it, tell the USGS: every report sharpens the shaking map.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 0.4 km horizontally, 1.0 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 74°
- 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: 4 since this one and 12 in the 30 days before it.
After
- 2.16 km ENE of Bell Hill, Washington · 4 days ago · 49 km deep · 90 km away
- 2.03 km ESE of East Renton Highlands, Washington · 46 hr ago · 14 km deep · 62 km away
- 1.55 km SSW of Morton, Washington · 41 hr ago · 10 km deep · 94 km away
- 2.45 km SW of Wilderness Rim, Washington · 9 hr ago · 19 km deep · 78 km away · felt by 10
Before
- 1.511 km NE of Ashford, Washington · 5 days ago · 5 km deep · 85 km away
- 2.14 km SW of Wilderness Rim, Washington · 6 days ago · 21 km deep · 79 km away · felt by 2
- 1.57 km NNE of Ashford, Washington · 10 days ago · 8 km deep · 83 km away
- 1.710 km ESE of Riverbend, Washington · 12 days ago · 13 km deep · 93 km away
- 2.14 km NNE of Snoqualmie, Washington · 20 days ago · 18 km deep · 84 km away · felt by 4
- 1.68 km E of Ashford, Washington · 23 days ago · -1 km deep · 90 km away
- 1.61 km NNE of Maple Valley, Washington · 24 days ago · 16 km deep · 61 km away
- 1.834 km NE of Amanda Park, Washington · 26 days ago · 22 km deep · 77 km away
- 1.66 km NE of Rochester, Washington · 27 days ago · 6 km deep · 49 km away
- 1.735 km NE of Amanda Park, Washington · 28 days ago · 35 km deep · 67 km away
- 1.78 km E of Ashford, Washington · 31 days ago · 2 km deep · 90 km away
- 2.48 km E of Ashford, Washington · 31 days ago · 4 km deep · 90 km away · felt by 3
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event uw714105051. Read Tue, Sep 22, 2026, 3:50 PM UTC.