M3.7 earthquake 24 km NW of Tocopilla, Chile
A magnitude 3.7 earthquake struck 24 km NW of Tocopilla, Chile on Fri, Mar 21, 2014, 2:39 AM GMT-3 (05:39 UTC), 29 km (18 mi) below the surface.
A larger quake followed: M4.7 14 km SW of Tocopilla, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.7 (mwr), minor
- Local time
- UTC
- 2014-03-21 05:39:43 UTC
- Depth
- 28.9 km (18.0 mi), shallow
- Epicenter
- 21.953° S, 70.388° W
- Region
- Chile
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Oblique reverse
- Moment magnitude
- 3.7 Mwr
- Nodal plane 1
- Strike 35°, dip 25°, rake 127°
- Nodal plane 2
- Strike 175°, dip 70°, rake 74°
How well it is located
Reviewed by a seismologist.
- Magnitude uncertainty
- ±0.05
- Stations used
- 0
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 2 in the 30 days before it.
After
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usc000njhm. Read Wed, Sep 30, 2026, 10:40 AM UTC.