M4.3 earthquake 94 km S of Arica, Chile
A magnitude 4.3 earthquake struck 94 km S of Arica, Chile on Thu, Sep 30, 2021, 5:19 PM GMT-3 (20:19 UTC), 34 km (21 mi) below the surface.
A larger quake followed: M4.4 101 km SSE 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 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-09-30 20:19:54 UTC
- Depth
- 33.8 km (21.0 mi), shallow
- Epicenter
- 19.326° S, 70.281° 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 III, weak shaking.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 2.7 km horizontally, 8.5 km in depth
- Magnitude uncertainty
- ±0.15
- Depth from
- From location
- Station coverage gap
- 134°
- Stations used
- 50
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
- 3.911 km NNE of Iquique, Chile · 1815 days ago · 47 km deep · 90 km away · felt by 9
- 4.4101 km SSE of Arica, Chile · 1793 days ago · 89 km deep · 53 km away · felt by 2
- 4.090 km NE of Iquique, Chile · 1789 days ago · 102 km deep · 90 km away · felt by 1
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000fqkd. Read Sat, Oct 3, 2026, 7:53 AM UTC.