M2.5 earthquake 12 km SW of Moccasin, Arizona
A magnitude 2.5 earthquake struck 12 km SW of Moccasin, Arizona on Mon, Aug 31, 1981, 4:16 PM MST (23:16 UTC), 1 km (1 mi) below the surface.
A larger quake followed: M2.6 9 km WNW of Glendale, Utah. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 2.5 (md), micro
- Local time
- UTC
- 1981-08-31 23:16:05 UTC
- Depth
- 1.5 km (0.9 mi), shallow
- Epicenter
- 36.833° N, 112.863° W
- Region
- Arizona
- 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 2.8 km horizontally, 2.2 km in depth
- Depth from
- From location
- Station coverage gap
- 254°, poorly surrounded by stations
- 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: 3 in the 60 days after this one and 2 in the 30 days before it.
After
- 1.810 km WNW of Kanarraville, Utah · 16429 days ago · 11 km deep · 92 km away
- 2.69 km WNW of Glendale, Utah · 16428 days ago · 17 km deep · 61 km away
- 1.7Utah · 16426 days ago · 3 km deep · 99 km away
Before
Earthquakes todayArizona earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event uu50002465. Read Tue, Sep 22, 2026, 4:53 PM UTC.