M4.3 earthquake 60 km N of Iquique, Chile
A magnitude 4.3 earthquake struck 60 km N of Iquique, Chile on Sun, Aug 23, 2015, 5:57 PM GMT-3 (20:57 UTC), 69 km (43 mi) below the surface.
A larger quake followed: M5.0 Near the coast of Tarapaca, 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
- 2015-08-23 20:57:07 UTC
- Depth
- 69.2 km (43.0 mi), shallow
- Epicenter
- 19.677° S, 70.248° W
- Region
- Chile
- Felt reports
- 2
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
2 people reported to the USGS what they felt; the strongest reported shaking was IV, light shaking.

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 126°, dip 43°, rake -160°
- Nodal plane 2
- Strike 21°, dip 76°, rake -49°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.7 km horizontally, 4.2 km in depth
- Magnitude uncertainty
- ±0.05
- 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: 11 in the 60 days after this one and 4 in the 30 days before it.
After
- 3.9Near the coast of Tarapaca, Chile · 4047 days ago · 48 km deep · 52 km away · felt by 1
- 4.489 km WNW of Iquique, Chile · 4037 days ago · 15 km deep · 86 km away · felt by 1
- 4.285 km WNW of Iquique, Chile · 4032 days ago · 11 km deep · 82 km away
- 5.0Near the coast of Tarapaca, Chile · 4032 days ago · 10 km deep · 70 km away
- 4.974 km WNW of Iquique, Chile · 4032 days ago · 14 km deep · 72 km away
- 4.591 km WNW of Iquique, Chile · 4031 days ago · 16 km deep · 85 km away
- 4.987 km WNW of Iquique, Chile · 4031 days ago · 13 km deep · 80 km away · felt by 1
- 4.981 km WNW of Iquique, Chile · 4031 days ago · 9 km deep · 73 km away
- 4.1Near the coast of Tarapaca, Chile · 4031 days ago · 12 km deep · 87 km away
- 4.190 km WNW of Iquique, Chile · 4024 days ago · 12 km deep · 83 km away
- 4.289 km WNW of Iquique, Chile · 4011 days ago · 13 km deep · 85 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us100034cw. Read Tue, Sep 29, 2026, 5:17 PM UTC.