M2.8 earthquake 37 km SSE of Kaibab, Arizona
A magnitude 2.8 earthquake struck 37 km SSE of Kaibab, Arizona on Tue, Sep 21, 2021, 5:56 AM MST (12:56 UTC), 18 km (11 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.8 (ML, local (Richter)), micro
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-09-21 12:56:55 UTC
- Depth
- 18.4 km (11.4 mi), shallow
- Epicenter
- 36.598° N, 112.536° W
- Region
- Arizona
- Felt reports
- 2
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
2 people reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.

How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 1.9 km horizontally, 4.7 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 89°
- Stations used
- 19
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 1.527 km SSE of Saint George, Utah · 1823 days ago · 19 km deep · 89 km away
- 1.711 km ENE of Hildale, Utah · 1818 days ago · 8 km deep · 58 km away
Before
Earthquakes todayArizona earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000fd4f. Read Sat, Oct 3, 2026, 11:08 AM UTC.