M3.5 earthquake 21 km NNE of San Simon, Arizona
A magnitude 3.5 earthquake struck 21 km NNE of San Simon, Arizona on Mon, Sep 15, 2014, 4:55 AM MST (11:55 UTC), 5 km (3 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.5 (ml), minor
- Local time
- UTC
- 2014-09-15 11:55:06 UTC
- Depth
- 5.0 km (3.1 mi), shallow
- Epicenter
- 32.449° N, 109.160° W
- Region
- Arizona
- Strongest shaking
- IV, light shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- IV, light shaking
- Map
- Automatic
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 4.8 km horizontally, 2.0 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- OPERATOR_ASSIGNED
- Station coverage gap
- 83°
- Stations used
- 31
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 3 in the 30 days before it.
After
Before
Earthquakes todayArizona earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usb000sdc2. Read Tue, Sep 22, 2026, 9:58 AM UTC.