M4.3 earthquake 51 km NW of Valparaíso, Chile
A magnitude 4.3 earthquake struck 51 km NW of Valparaíso, Chile on Mon, Sep 25, 2017, 10:55 AM GMT-3 (13:55 UTC), 24 km (15 mi) below the surface.
A larger quake followed: M4.7 143 km NW of Valparaíso, 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
- 2017-09-25 13:55:27 UTC
- Depth
- 24.0 km (14.9 mi), shallow
- Epicenter
- 32.683° S, 71.990° W
- Region
- Chile
- Felt reports
- 45
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
45 people reported to the USGS what they felt; the strongest reported shaking was V, moderate shaking.
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
- 4.3 Mwr
- Nodal plane 1
- Strike 1°, dip 36°, rake 92°
- Nodal plane 2
- Strike 178°, dip 54°, rake 88°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.5 km horizontally, 4.7 km in depth
- Magnitude uncertainty
- ±0.04
- 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: 7 in the 60 days after this one and 6 in the 30 days before it.
After
- 4.035 km W of Valparaíso, Chile · 3278 days ago · 19 km deep · 37 km away · felt by 34
- 4.161 km W of La Ligua, Chile · 3274 days ago · 20 km deep · 24 km away · felt by 103
- 4.045 km W of Valparaíso, Chile · 3274 days ago · 16 km deep · 36 km away
- 3.710 km SSW of Valparaíso, Chile · 3269 days ago · 30 km deep · 57 km away · felt by 42
- 4.056 km W of Valparaíso, Chile · 3268 days ago · 20 km deep · 45 km away · felt by 29
- 4.7143 km NW of Valparaíso, Chile · 3266 days ago · 10 km deep · 94 km away · felt by 127
- 4.118 km SE of La Ligua, Chile · 3264 days ago · 74 km deep · 86 km away · felt by 30
Before
- 4.396 km W of Illapel, Chile · 3293 days ago · 10 km deep · 99 km away
- 4.3102 km WSW of Illapel, Chile · 3293 days ago · 10 km deep · 96 km away
- 5.993 km WSW of Illapel, Chile · 3293 days ago · 17 km deep · 97 km away · felt by 115
- 4.058 km W of Valparaíso, Chile · 3306 days ago · 16 km deep · 52 km away
- 4.250 km W of Valparaíso, Chile · 3314 days ago · 18 km deep · 40 km away · felt by 31
- 4.099 km WSW of Illapel, Chile · 3315 days ago · 10 km deep · 97 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000aub9. Read Thu, Sep 24, 2026, 12:10 PM UTC.