M4.0 earthquake 56 km SW of Iquique, Chile
A magnitude 4.0 earthquake struck 56 km SW of Iquique, Chile on Wed, Mar 11, 2015, 12:25 PM GMT-3 (15:25 UTC), 25 km (16 mi) below the surface.
A larger quake followed: M5.2 84 km SW 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
- 2015-03-11 15:25:56 UTC
- Depth
- 25.0 km (15.5 mi), shallow
- Epicenter
- 20.633° S, 70.460° 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 4.6 km horizontally, 7.0 km in depth
- Magnitude uncertainty
- ±0.37
- Depth from
- FROM_LOCATION
- Station coverage gap
- 182°, poorly surrounded by stations
- Stations used
- 18
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 7 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.026 km S of Iquique, Chile · 4218 days ago · 18 km deep · 38 km away · felt by 2
- 5.284 km SW of Iquique, Chile · 4207 days ago · 16 km deep · 34 km away · felt by 2
- 4.082 km SW of Iquique, Chile · 4207 days ago · 26 km deep · 33 km away
- 4.5Near the coast of Tarapaca, Chile · 4206 days ago · 25 km deep · 28 km away
- 4.281 km WNW of Iquique, Chile · 4194 days ago · 33 km deep · 83 km away
- 4.093 km WNW of Iquique, Chile · 4193 days ago · 31 km deep · 99 km away
- 4.376 km WNW of Iquique, Chile · 4186 days ago · 28 km deep · 77 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10001mr8. Read Tue, Sep 29, 2026, 8:26 PM UTC.