M4.2 earthquake 89 km WNW of Iquique, Chile
A magnitude 4.2 earthquake struck 89 km WNW of Iquique, Chile on Tue, Oct 6, 2015, 1:41 PM GMT-3 (16:41 UTC), 13 km (8 mi) below the surface.
A larger quake followed: M4.5 77 km WSW 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
- 4.2 (mwr), light
- Local time
- UTC
- 2015-10-06 16:41:32 UTC
- Depth
- 12.9 km (8.0 mi), shallow
- Epicenter
- 20.003° S, 70.980° 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
- 4.2 Mwr
- Nodal plane 1
- Strike 329°, dip 20°, rake 77°
- Nodal plane 2
- Strike 163°, dip 71°, rake 95°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.0 km horizontally, 5.4 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 176°
- Stations used
- 31
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 6 in the 60 days after this one and 10 in the 30 days before it.
After
- 4.577 km WSW of Iquique, Chile · 4001 days ago · 15 km deep · 68 km away · felt by 1
- 3.967 km WSW of Iquique, Chile · 3998 days ago · 17 km deep · 67 km away
- 4.179 km WNW of Iquique, Chile · 3986 days ago · 30 km deep · 15 km away
- 4.095 km WNW of Iquique, Chile · 3979 days ago · 18 km deep · 22 km away
- 3.999 km WNW of Iquique, Chile · 3978 days ago · 20 km deep · 21 km away
- 4.293 km WNW of Iquique, Chile · 3959 days ago · 11 km deep · 5 km away
Before
- 4.480 km W of Iquique, Chile · 4019 days ago · 29 km deep · 38 km away
- 4.190 km WNW of Iquique, Chile · 4024 days ago · 12 km deep · 3 km away
- 4.1Near the coast of Tarapaca, Chile · 4032 days ago · 12 km deep · 20 km away
- 4.981 km WNW of Iquique, Chile · 4032 days ago · 9 km deep · 12 km away
- 4.987 km WNW of Iquique, Chile · 4032 days ago · 13 km deep · 5 km away · felt by 1
- 4.591 km WNW of Iquique, Chile · 4032 days ago · 16 km deep · 3 km away
- 4.974 km WNW of Iquique, Chile · 4033 days ago · 14 km deep · 15 km away
- 5.0Near the coast of Tarapaca, Chile · 4033 days ago · 10 km deep · 19 km away
- 4.285 km WNW of Iquique, Chile · 4033 days ago · 11 km deep · 4 km away
- 4.489 km WNW of Iquique, Chile · 4038 days ago · 15 km deep · 2 km away · felt by 1
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10003kqa. Read Wed, Sep 30, 2026, 10:09 AM UTC.