M4.2 earthquake 50 km N of La Serena, Chile
A magnitude 4.2 earthquake struck 50 km N of La Serena, Chile on Wed, Sep 27, 2017, 6:01 AM GMT-3 (09:01 UTC), 39 km (24 mi) below the surface.
A larger quake followed: M4.4 35 km W of Coquimbo, 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 (mb), light
- Local time
- UTC
- 2017-09-27 09:01:07 UTC
- Depth
- 38.5 km (23.9 mi), shallow
- Epicenter
- 29.453° S, 71.317° W
- Region
- Chile
- Felt reports
- 8
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
8 people reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.4 km horizontally, 12.1 km in depth
- Magnitude uncertainty
- ±0.24
- Depth from
- From location
- Station coverage gap
- 161°
- 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 2 in the 30 days before it.
After
- 4.435 km W of Coquimbo, Chile · 3282 days ago · 24 km deep · 66 km away
- 3.98 km NNW of Coquimbo, Chile · 3275 days ago · 51 km deep · 48 km away
- 4.46 km SSW of Coquimbo, Chile · 3271 days ago · 51 km deep · 62 km away · felt by 8
- 4.364 km W of Vallenar, Chile · 3267 days ago · 40 km deep · 87 km away
- 3.886 km W of Vallenar, Chile · 3266 days ago · 28 km deep · 87 km away
- 4.552 km NNW of La Serena, Chile · 3243 days ago · 37 km deep · 6 km away · felt by 14
- 4.2103 km WNW of Coquimbo, Chile · 3232 days ago · 25 km deep · 97 km away
- 4.144 km SW of Coquimbo, Chile · 3230 days ago · 36 km deep · 96 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000av9i. Read Thu, Sep 24, 2026, 8:53 AM UTC.