M3.9 earthquake 61 km WSW of Iquique, Chile
A magnitude 3.9 earthquake struck 61 km WSW of Iquique, Chile on Thu, Jul 31, 2014, 12:55 PM GMT-4 (16:55 UTC), 25 km (15 mi) below the surface.
A larger quake followed: M5.3 14 km ENE 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
- 3.9 (mwr), minor
- Local time
- UTC
- 2014-07-31 16:55:58 UTC
- Depth
- 24.8 km (15.4 mi), shallow
- Epicenter
- 20.490° S, 70.658° 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
- Normal
- Moment magnitude
- 3.9 Mwr
- Nodal plane 1
- Strike 326°, dip 85°, rake -70°
- Nodal plane 2
- Strike 69°, dip 21°, rake -166°
How well it is located
Reviewed by a seismologist.
- Magnitude uncertainty
- ±0.05
- Depth from
- FROM_LOCATION
- Station coverage gap
- 148°
- Stations used
- 35
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 15 in the 60 days after this one and 17 in the 30 days before it.
After
- 4.185 km NW of Iquique, Chile · 4442 days ago · 43 km deep · 98 km away
- 4.390 km WSW of Iquique, Chile · 4435 days ago · 12 km deep · 31 km away
- 5.314 km ENE of Iquique, Chile · 4431 days ago · 51 km deep · 76 km away · felt by 23
- 4.272 km WNW of Iquique, Chile · 4430 days ago · 8 km deep · 54 km away
- 4.895 km WNW of Iquique, Chile · 4428 days ago · 10 km deep · 66 km away
- 4.023 km WNW of Iquique, Chile · 4427 days ago · 40 km deep · 49 km away · felt by 1
- 4.674 km SW of Iquique, Chile · 4425 days ago · 22 km deep · 27 km away
- 4.382 km SW of Iquique, Chile · 4425 days ago · 41 km deep · 28 km away
- 4.798 km WNW of Iquique, Chile · 4420 days ago · 10 km deep · 73 km away
- 4.480 km NW of Iquique, Chile · 4417 days ago · 40 km deep · 89 km away
- 4.954 km SSW of Iquique, Chile · 4409 days ago · 35 km deep · 43 km away · felt by 1
- 4.386 km WNW of Iquique, Chile · 4402 days ago · 24 km deep · 69 km away
- 4.164 km W of Iquique, Chile · 4396 days ago · 39 km deep · 34 km away
- 4.576 km W of Iquique, Chile · 4395 days ago · 13 km deep · 37 km away
- 4.290 km WNW of Iquique, Chile · 4387 days ago · 15 km deep · 64 km away
Before
- 4.265 km WSW of Iquique, Chile · 4444 days ago · 35 km deep · 5 km away
- 4.532 km WNW of Iquique, Chile · 4446 days ago · 29 km deep · 45 km away
- 4.435 km WNW of Iquique, Chile · 4447 days ago · 33 km deep · 44 km away
- 4.696 km WNW of Iquique, Chile · 4447 days ago · 10 km deep · 75 km away
- 4.1102 km WNW of Iquique, Chile · 4447 days ago · 10 km deep · 78 km away
- 4.489 km WNW of Iquique, Chile · 4451 days ago · 16 km deep · 66 km away
- 3.918 km ESE of Iquique, Chile · 4454 days ago · 51 km deep · 75 km away
- 5.046 km W of Iquique, Chile · 4455 days ago · 26 km deep · 39 km away
- 4.6Near the coast of Tarapaca, Chile · 4457 days ago · 15 km deep · 41 km away
- 5.075 km W of Iquique, Chile · 4457 days ago · 15 km deep · 44 km away
- 4.330 km N of Iquique, Chile · 4460 days ago · 45 km deep · 84 km away · felt by 3
- 5.521 km WSW of Iquique, Chile · 4462 days ago · 33 km deep · 41 km away · felt by 19
- 4.976 km SW of Iquique, Chile · 4467 days ago · 25 km deep · 34 km away
- 4.387 km SW of Iquique, Chile · 4468 days ago · 25 km deep · 42 km away
- 4.590 km SW of Iquique, Chile · 4470 days ago · 16 km deep · 31 km away
- 4.181 km WNW of Iquique, Chile · 4470 days ago · 39 km deep · 56 km away
- 4.298 km WNW of Iquique, Chile · 4474 days ago · 15 km deep · 76 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usb000ryxi. Read Wed, Sep 30, 2026, 1:57 PM UTC.