M3.8 earthquake 51 km S of Iquique, Chile
A magnitude 3.8 earthquake struck 51 km S of Iquique, Chile on Tue, May 4, 2021, 5:58 PM GMT-4 (21:58 UTC), 32 km (20 mi) below the surface.
A larger quake followed: M4.5 83 km NNW 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
- 3.8 (ML, local (Richter)), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-05-04 21:58:35 UTC
- Depth
- 31.8 km (19.8 mi), shallow
- Epicenter
- 20.674° S, 70.174° W
- Region
- Chile
- Felt reports
- 5
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
5 people reported to the USGS what they felt; the strongest reported shaking was II, weak shaking.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.7 km horizontally, 2.9 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 169°
- Stations used
- 23
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 2 in the 30 days before it.
After
- 4.2103 km N of Tocopilla, Chile · 1958 days ago · 46 km deep · 57 km away · felt by 2
- 4.583 km NNW of Tocopilla, Chile · 1947 days ago · 51 km deep · 95 km away · felt by 8
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us7000e05q. Read Sat, Oct 3, 2026, 8:14 AM UTC.