M4.4 earthquake 90 km WNW of Iquique, Chile
A magnitude 4.4 earthquake struck 90 km WNW of Iquique, Chile on Wed, Sep 20, 2017, 7:57 PM GMT-3 (22:57 UTC), 13 km (8 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.4 (mwr), light
- Local time
- UTC
- 2017-09-20 22:57:38 UTC
- Depth
- 12.6 km (7.8 mi), shallow
- Epicenter
- 19.991° S, 70.981° 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
- 4.4 Mwr
- Nodal plane 1
- Strike 344°, dip 27°, rake 94°
- Nodal plane 2
- Strike 159°, dip 63°, rake 88°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.6 km horizontally, 2.3 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 154°
- Stations used
- 54
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 0 in the 60 days after this one and 3 in the 30 days before it.
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000as71. Read Wed, Sep 30, 2026, 10:18 PM UTC.