M4.3 earthquake 132 km E of Iquique, Chile
A magnitude 4.3 earthquake struck 132 km E of Iquique, Chile on Sun, Aug 20, 2017, 12:13 PM GMT-3 (15:13 UTC), 97 km (60 mi) below the surface.
A larger quake followed: M4.7 92 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
- 4.3 (mwr), light
- Local time
- UTC
- 2017-08-20 15:13:20 UTC
- Depth
- 97.0 km (60.3 mi), intermediate-depth
- Epicenter
- 20.314° S, 68.888° 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
- Strike-slip
- Moment magnitude
- 4.3 Mwr
- Nodal plane 1
- Strike 239°, dip 36°, rake -11°
- Nodal plane 2
- Strike 338°, dip 83°, rake -126°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 6.0 km horizontally, 5.8 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 33°
- Stations used
- 67
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.1153 km N of Calama, Chile · 3314 days ago · 114 km deep · 86 km away
- 4.4130 km ESE of Iquique, Chile · 3311 days ago · 111 km deep · 64 km away
- 4.792 km E of Iquique, Chile · 3300 days ago · 99 km deep · 40 km away
- 3.8124 km ESE of Iquique, Chile · 3298 days ago · 108 km deep · 36 km away
- 4.2128 km E of Iquique, Chile · 3279 days ago · 102 km deep · 14 km away
- 4.7139 km N of Calama, Chile · 3279 days ago · 123 km deep · 100 km away
- 4.3116 km ENE of Iquique, Chile · 3275 days ago · 111 km deep · 74 km away
- 4.0Tarapaca, Chile · 3275 days ago · 94 km deep · 26 km away
- 4.4155 km N of Calama, Chile · 3273 days ago · 120 km deep · 83 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000a9xt. Read Wed, Sep 30, 2026, 11:47 PM UTC.