M3.7 earthquake 94 km W of Illapel, Chile
A magnitude 3.7 earthquake struck 94 km W of Illapel, Chile on Tue, Apr 25, 2017, 7:52 PM GMT-3 (22:52 UTC), 13 km (8 mi) below the surface.
A larger quake followed: M3.9 69 km NW of Illapel, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.7 (mwr), minor
- Local time
- UTC
- 2017-04-25 22:52:29 UTC
- Depth
- 12.7 km (7.9 mi), shallow
- Epicenter
- 31.767° S, 72.158° 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
- 3.7 Mwr
- Nodal plane 1
- Strike 1°, dip 43°, rake 102°
- Nodal plane 2
- Strike 165°, dip 48°, rake 79°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.4 km horizontally, 5.6 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 183°, poorly surrounded by stations
- Stations used
- 39
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 8 in the 60 days after this one and 6 in the 30 days before it.
After
- 3.969 km NW of Illapel, Chile · 3434 days ago · 28 km deep · 66 km away
- 4.059 km WNW of Illapel, Chile · 3424 days ago · 13 km deep · 49 km away
- 4.556 km SW of Illapel, Chile · 3418 days ago · 43 km deep · 63 km away
- 4.368 km WSW of Illapel, Chile · 3417 days ago · 65 km deep · 39 km away · felt by 1
- 4.167 km WNW of La Ligua, Chile · 3404 days ago · 33 km deep · 51 km away · felt by 1
- 5.757 km WNW of Illapel, Chile · 3391 days ago · 27 km deep · 48 km away · felt by 155
- 4.059 km WNW of Illapel, Chile · 3391 days ago · 34 km deep · 47 km away
- 4.5Near the coast of Valparaiso, Chile · 3385 days ago · 22 km deep · 45 km away · felt by 1
Before
- 4.636 km SW of Illapel, Chile · 3445 days ago · 52 km deep · 66 km away · felt by 4
- 4.580 km WNW of La Ligua, Chile · 3446 days ago · 16 km deep · 38 km away
- 4.033 km SSW of Salamanca, Chile · 3449 days ago · 100 km deep · 100 km away
- 4.166 km W of Illapel, Chile · 3450 days ago · 58 km deep · 28 km away
- 4.2160 km WNW of Illapel, Chile · 3454 days ago · 10 km deep · 82 km away
- 4.3141 km WNW of Illapel, Chile · 3457 days ago · 33 km deep · 62 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10008kvm. Read Wed, Sep 23, 2026, 11:01 PM UTC.