M3.9 earthquake 74 km W of Coquimbo, Chile
A magnitude 3.9 earthquake struck 74 km W of Coquimbo, Chile on Thu, Jan 16, 2020, 4:11 AM GMT-3 (07:11 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M5.5 102 km WSW of Coquimbo, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.9 (Mwr, regional moment), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2020-01-16 07:11:40 UTC
- Depth
- 10.2 km (6.3 mi), shallow
- Epicenter
- 29.868° S, 72.110° W
- Region
- Chile
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Reverse (thrust)
- Moment magnitude
- 3.9 Mwr
- Nodal plane 1
- Strike 4°, dip 41°, rake 98°
- Nodal plane 2
- Strike 173°, dip 49°, rake 83°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 3.6 km horizontally, 5.3 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 206°, poorly surrounded by stations
- Stations used
- 31
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 10 in the 60 days after this one and 6 in the 30 days before it.
After
- 5.5102 km WSW of Coquimbo, Chile · 2441 days ago · 7 km deep · 47 km away · felt by 1
- 4.875 km WSW of Coquimbo, Chile · 2440 days ago · 13 km deep · 43 km away
- 4.136 km NW of Ovalle, Chile · 2428 days ago · 35 km deep · 83 km away
- 4.666 km NNW of Coquimbo, Chile · 2425 days ago · 46 km deep · 61 km away · felt by 1
- 4.358 km WNW of Ovalle, Chile · 2416 days ago · 35 km deep · 70 km away · felt by 7
- 4.842 km NNE of La Serena, Chile · 2412 days ago · 75 km deep · 100 km away · felt by 16
- 4.493 km WSW of Coquimbo, Chile · 2403 days ago · 17 km deep · 52 km away
- 4.399 km WSW of Coquimbo, Chile · 2400 days ago · 9 km deep · 62 km away
- 4.349 km WNW of Ovalle, Chile · 2399 days ago · 28 km deep · 74 km away
- 4.695 km WSW of Coquimbo, Chile · 2398 days ago · 7 km deep · 49 km away
Before
- 4.584 km WNW of Coquimbo, Chile · 2461 days ago · 8 km deep · 14 km away
- 4.185 km SW of Coquimbo, Chile · 2467 days ago · 10 km deep · 59 km away
- 5.042 km SSW of Coquimbo, Chile · 2468 days ago · 41 km deep · 70 km away · felt by 10
- 4.342 km SSW of Coquimbo, Chile · 2470 days ago · 33 km deep · 68 km away
- 4.449 km W of Ovalle, Chile · 2478 days ago · 28 km deep · 96 km away
- 4.37 km S of Coquimbo, Chile · 2482 days ago · 45 km deep · 77 km away · felt by 1
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us700070rc. Read Sun, Oct 4, 2026, 5:48 PM UTC.