Colorado earthquakes

M1.8 earthquake 6 km WSW of Fowler, Colorado

A magnitude 1.8 earthquake struck 6 km WSW of Fowler, Colorado on Thu, Jun 1, 2023, 5:19 AM MDT (11:19 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M2.3 7 km N of El Moro, Colorado. This one was a foreshock.

Fowler forecastMore in Colorado

Map

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

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The earthquake

Magnitude
1.8 (ml), micro
Local time
UTC
2023-06-01 11:19:19 UTC
Depth
5.0 km (3.1 mi), shallow
Epicenter
38.103° N, 104.096° W
Region
Colorado
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 1.7 km horizontally, 1.9 km in depth
Magnitude uncertainty
±0.12
Depth from
Operator assigned
Station coverage gap
124°
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: 13 in the 60 days after this one and 3 in the 30 days before it.

After

  1. 2.37 km N of El Moro, Colorado · 1209 days ago · 5 km deep · 96 km away
  2. 2.88 km N of El Moro, Colorado · 1208 days ago · 7 km deep · 96 km away · felt by 6
  3. 2.38 km N of El Moro, Colorado · 1201 days ago · 6 km deep · 96 km away
  4. 3.47 km NNW of El Moro, Colorado · 1191 days ago · 6 km deep · 98 km away · felt by 16
  5. 4.1Colorado · 1191 days ago · 6 km deep · 94 km away · felt by 56
  6. 1.87 km N of El Moro, Colorado · 1191 days ago · 5 km deep · 97 km away
  7. 1.621 km ENE of Lynn, Colorado · 1191 days ago · 5 km deep · 72 km away
  8. 1.98 km N of El Moro, Colorado · 1190 days ago · 5 km deep · 96 km away
  9. 2.1Colorado · 1190 days ago · 5 km deep · 96 km away
  10. 2.66 km NNW of El Moro, Colorado · 1181 days ago · 5 km deep · 98 km away · felt by 1
  11. 2.4Colorado · 1181 days ago · 5 km deep · 96 km away
  12. 1.77 km NNW of El Moro, Colorado · 1179 days ago · 5 km deep · 97 km away
  13. 2.07 km NNW of El Moro, Colorado · 1175 days ago · 5 km deep · 96 km away

Before

  1. 2.17 km WNW of Hoehne, Colorado · 1219 days ago · 6 km deep · 95 km away
  2. 2.57 km N of El Moro, Colorado · 1231 days ago · 7 km deep · 96 km away · felt by 2
  3. 1.56 km NNW of El Moro, Colorado · 1236 days ago · 5 km deep · 97 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us7000k5gx. Read Tue, Sep 22, 2026, 9:17 PM UTC.