M4.3 earthquake 127 km WNW of Iquique, Chile
A magnitude 4.3 earthquake struck 127 km WNW of Iquique, Chile on Thu, Aug 12, 2021, 1:29 AM GMT-4 (05:29 UTC), 10 km (6 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.3 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-08-12 05:29:23 UTC
- Depth
- 10.2 km (6.3 mi), shallow
- Epicenter
- 19.915° S, 71.329° W
- Region
- Chile
- 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.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Oblique normal
- Moment magnitude
- 4.3 Mwr
- Nodal plane 1
- Strike 279°, dip 27°, rake -48°
- Nodal plane 2
- Strike 53°, dip 70°, rake -109°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.5 km horizontally, 3.9 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 143°
- Stations used
- 75
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 us6000f4eg. Read Sat, Oct 3, 2026, 3:57 PM UTC.