M4.4 earthquake 41 km WSW of Arica, Chile
A magnitude 4.4 earthquake struck 41 km WSW of Arica, Chile on Wed, Jul 28, 2021, 7:09 AM GMT-4 (11:09 UTC), 43 km (26 mi) below the surface.
A larger quake followed: M4.7 25 km N 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
- 4.4 (mb, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2021-07-28 11:09:51 UTC
- Depth
- 42.6 km (26.5 mi), shallow
- Epicenter
- 18.559° S, 70.678° 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 III, weak shaking.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 7.7 km horizontally, 8.2 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 141°
- Stations used
- 34
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.449 km SE of Calana, Peru · 1872 days ago · 133 km deep · 97 km away
- 4.725 km N of Arica, Chile · 1868 days ago · 84 km deep · 54 km away · felt by 2
- 4.440 km SE of Calana, Peru · 1849 days ago · 97 km deep · 90 km away
- 4.290 km S of Pacocha, Peru · 1848 days ago · 35 km deep · 86 km away
- 4.490 km S of Pacocha, Peru · 1848 days ago · 35 km deep · 71 km away · felt by 1
- 4.397 km S of Pacocha, Peru · 1848 days ago · 47 km deep · 80 km away
- 4.366 km S of Pacocha, Peru · 1839 days ago · 50 km deep · 69 km away · felt by 1
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us6000ezrk. Read Sat, Oct 3, 2026, 8:12 AM UTC.