M4.0 earthquake 116 km ESE of Iquique, Chile
A magnitude 4.0 earthquake struck 116 km ESE of Iquique, Chile on Wed, Feb 7, 2018, 8:21 PM GMT-3 (23:21 UTC), 103 km (64 mi) below the surface.
A larger quake followed: M5.1 167 km E of Iquique, 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
- 2018-02-07 23:21:06 UTC
- Depth
- 102.8 km (63.9 mi), intermediate-depth
- Epicenter
- 20.431° S, 69.062° 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.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.7 km horizontally, 5.3 km in depth
- Magnitude uncertainty
- ±0.26
- Depth from
- From location
- Station coverage gap
- 92°
- Stations used
- 33
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 3 in the 30 days before it.
After
- 5.1167 km E of Iquique, Chile · 3132 days ago · 121 km deep · 52 km away · felt by 2
- 4.5Tarapaca, Chile · 3118 days ago · 117 km deep · 46 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000cyi1. Read Wed, Sep 30, 2026, 11:15 PM UTC.