Washington earthquakes

M1.6 earthquake 4 km W of Thorp, Washington

A magnitude 1.6 earthquake struck 4 km W of Thorp, Washington on Tue, Jul 1, 2003, 10:36 AM PDT (17:36 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M2.9 37 km W of Granite Falls, Washington. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.6 (Md, duration), micro
Magnitude from
Pacific Northwest Seismic Network
Local time
UTC
2003-07-01 17:36:23 UTC
Depth
-0.7 km (-0.5 mi), shallow
Epicenter
47.064° N, 120.729° W
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, 0.5 km in depth
Magnitude uncertainty
±0.03
Depth from
Operator assigned
Station coverage gap
78°
Stations used
8

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 17 in the 60 days after this one and 5 in the 30 days before it.

After

  1. 1.95 km WSW of Entiat, Washington · 8486 days ago · -1 km deep · 74 km away
  2. 1.731 km NNW of Leavenworth, Washington · 8485 days ago · -1 km deep · 87 km away
  3. 1.822 km ESE of Packwood, Washington · 8482 days ago · 5 km deep · 75 km away
  4. 2.017 km SW of Toppenish, Washington · 8480 days ago · 16 km deep · 93 km away
  5. 2.130 km ESE of Packwood, Washington · 8471 days ago · 0 km deep · 80 km away
  6. 1.59 km SSW of Chelan Falls, Washington · 8454 days ago · 4 km deep · 90 km away
  7. 1.88 km WNW of Entiat, Washington · 8453 days ago · -1 km deep · 78 km away
  8. 1.823 km ENE of Ashford, Washington · 8449 days ago · -2 km deep · 82 km away
  9. 1.910 km NNE of Snoqualmie, Washington · 8448 days ago · 12 km deep · 99 km away
  10. 1.99 km SE of Royal City, WA · 8441 days ago · 2 km deep · 93 km away
  11. 1.512 km WSW of Greenwater, Washington · 8439 days ago · 5 km deep · 82 km away
  12. 1.75 km SSW of Entiat, Washington · 8439 days ago · -1 km deep · 73 km away
  13. 1.76 km ESE of Tampico, Washington · 8437 days ago · -1 km deep · 61 km away
  14. 2.937 km W of Granite Falls, Washington · 8437 days ago · 5 km deep · 96 km away
  15. 1.620 km SSE of Royal City, Washington · 8436 days ago · 0 km deep · 97 km away
  16. 1.936 km N of Leavenworth, Washington · 8436 days ago · 5 km deep · 96 km away
  17. 1.613 km NE of Nile, Washington · 8433 days ago · 6 km deep · 18 km away

Before

  1. 1.75 km ENE of Snoqualmie, Washington · 8495 days ago · 15 km deep · 95 km away
  2. 1.710 km W of Entiat, Washington · 8503 days ago · 4 km deep · 76 km away
  3. 1.84 km NNE of Entiat, Washington · 8508 days ago · -1 km deep · 83 km away
  4. 1.524 km ENE of Ashford, Washington · 8511 days ago · -2 km deep · 81 km away
  5. 1.73 km ENE of Tampico, Washington · 8513 days ago · -1 km deep · 58 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uw10583163. Read Thu, Oct 1, 2026, 8:45 AM UTC.