M4.3 earthquake 41 km SSE of Arica, Chile
A magnitude 4.3 earthquake struck 41 km SSE of Arica, Chile on Thu, Sep 18, 2014, 12:42 AM GMT-3 (03:42 UTC), 95 km (59 mi) below the surface.
A larger quake followed: M4.6 40 km WNW of Arica, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (mwr), light
- Local time
- UTC
- 2014-09-18 03:42:53 UTC
- Depth
- 95.4 km (59.3 mi), intermediate-depth
- Epicenter
- 18.824° S, 70.149° W
- Region
- Chile
- Felt reports
- 3
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
3 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Normal
- Moment magnitude
- 4.3 Mwr
- Nodal plane 1
- Strike 35°, dip 89°, rake -100°
- Nodal plane 2
- Strike 301°, dip 10°, rake -5°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.8 km horizontally, 3.6 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- FROM_LOCATION
- Station coverage gap
- 127°
- Stations used
- 96
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 0 in the 30 days before it.
After
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usb000sdte. Read Wed, Sep 30, 2026, 10:18 PM UTC.