M4.7 earthquake 89 km E of Arica, Chile
A magnitude 4.7 earthquake struck 89 km E of Arica, Chile on Wed, Aug 4, 2021, 2:16 AM GMT-4 (06:16 UTC), 126 km (78 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.7 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-08-04 06:16:52 UTC
- Depth
- 126.0 km (78.3 mi), intermediate-depth
- Epicenter
- 18.423° S, 69.450° W
- Region
- Chile
- Felt reports
- 1
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was I, not felt shaking.

How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 6.1 km horizontally, 5.2 km in depth
- Depth from
- From location
- Station coverage gap
- 76°
- Stations used
- 70
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.7 and up: 7 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.449 km SE of Calana, Peru · 1872 days ago · 133 km deep · 46 km away
- 4.725 km N of Arica, Chile · 1868 days ago · 84 km deep · 91 km away · felt by 2
- 4.340 km ENE of Palca, Peru · 1858 days ago · 162 km deep · 85 km away
- 4.378 km ESE of Palca, Peru · 1857 days ago · 170 km deep · 52 km away
- 4.440 km SE of Calana, Peru · 1849 days ago · 97 km deep · 55 km away
- 4.2126 km SE of Arica, Chile · 1843 days ago · 119 km deep · 87 km away
- 4.0115 km E of Arica, Chile · 1837 days ago · 138 km deep · 32 km away · felt by 1
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000f23q. Read Sat, Oct 3, 2026, 12:57 AM UTC.