M4.0 earthquake 88 km S of Calama, Chile
A magnitude 4.0 earthquake struck 88 km S of Calama, Chile on Mon, Nov 21, 2016, 10:28 AM GMT-3 (13:28 UTC), 90 km (56 mi) below the surface.
A larger quake followed: M5.8 90 km SSE 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
- 4.0 (mb), light
- Local time
- UTC
- 2016-11-21 13:28:08 UTC
- Depth
- 89.8 km (55.8 mi), intermediate-depth
- Epicenter
- 23.243° S, 69.084° 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 II, weak shaking.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.2 km horizontally, 6.0 km in depth
- Magnitude uncertainty
- ±0.30
- Stations used
- 0
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.222 km ESE of Calama, Chile · 3598 days ago · 122 km deep · 84 km away
- 4.362 km SSW of Calama, Chile · 3591 days ago · 103 km deep · 29 km away
- 4.25 km SE of Calama, Chile · 3586 days ago · 97 km deep · 87 km away
- 5.890 km SSE of Tocopilla, Chile · 3549 days ago · 72 km deep · 87 km away · felt by 26
- 4.7Antofagasta, Chile · 3549 days ago · 73 km deep · 90 km away · felt by 1
- 4.632 km ESE of Calama, Chile · 3545 days ago · 108 km deep · 93 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10007b55. Read Wed, Sep 30, 2026, 11:32 AM UTC.