Utah earthquakes

M1.6 earthquake 29 km W of Big Water, Utah

A magnitude 1.6 earthquake struck 29 km W of Big Water, Utah on Mon, Feb 22, 2021, 7:01 PM MST (02:01 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M2.3 26 km WSW of Big Water, Utah. 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
University of Utah Seismograph Stations
Local time
UTC
2021-02-23 02:01:38 UTC
Depth
6.0 km (3.7 mi), shallow
Epicenter
37.049° N, 111.992° W
Region
Utah
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 0.7 km horizontally, 11.3 km in depth
Magnitude uncertainty
±0.23
Depth from
Operator assigned
Station coverage gap
94°
Stations used
9

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 2.326 km WSW of Big Water, Utah · 2043 days ago · 6 km deep · 12 km away
  2. 1.915 km NW of Alton, Utah · 2041 days ago · 1 km deep · 77 km away
  3. 2.26 km SSE of Alton, Utah · 2038 days ago · 17 km deep · 55 km away
  4. 1.721 km SE of Fredonia, Arizona · 2036 days ago · 14 km deep · 46 km away
  5. 2.214 km W of Panguitch, Utah · 2034 days ago · 0 km deep · 100 km away
  6. 2.110 km WSW of Alton, Utah · 2022 days ago · 5 km deep · 68 km away
  7. 1.727 km S of Cannonville, Utah · 2017 days ago · 18 km deep · 30 km away · felt by 1
  8. 2.116 km NE of Hildale, Utah · 2008 days ago · 20 km deep · 75 km away
  9. 1.85 km N of Hildale, Utah · 2007 days ago · 16 km deep · 86 km away
  10. 1.610 km SSW of Kaibab, Arizona · 1998 days ago · 19 km deep · 76 km away

Before

  1. 1.610 km WNW of Glendale, Utah · 2059 days ago · 13 km deep · 72 km away
  2. 1.710 km E of Springdale, Utah · 2061 days ago · 21 km deep · 81 km away
  3. 2.09 km NNW of Hatch, Utah · 2069 days ago · -3 km deep · 87 km away
  4. 2.09 km E of Springdale, Utah · 2074 days ago · 18 km deep · 81 km away · felt by 1

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event uu60427517. Read Sat, Oct 3, 2026, 6:47 AM UTC.