M4.9 earthquake 16 km S of San Antonio, Chile
A magnitude 4.9 earthquake struck 16 km S of San Antonio, Chile on Sat, Sep 23, 2017, 7:02 PM GMT-3 (22:02 UTC), 46 km (29 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (mwr), light
- Local time
- UTC
- 2017-09-23 22:02:01 UTC
- Depth
- 46.4 km (28.8 mi), shallow
- Epicenter
- 33.742° S, 71.597° W
- Region
- Chile
- Felt reports
- 195
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
195 people reported to the USGS what they felt; the strongest reported shaking was VI, strong shaking.

How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 3.2 km horizontally, 6.0 km in depth
- Depth from
- From location
- Station coverage gap
- 66°
- Stations used
- 80
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 7 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.035 km W of Valparaíso, Chile · 3281 days ago · 19 km deep · 89 km away · felt by 34
- 4.045 km W of Valparaíso, Chile · 3277 days ago · 16 km deep · 97 km away
- 4.331 km NW of Santa Cruz, Chile · 3276 days ago · 48 km deep · 76 km away · felt by 1
- 3.710 km SSW of Valparaíso, Chile · 3272 days ago · 30 km deep · 69 km away · felt by 42
- 4.056 km W of Valparaíso, Chile · 3271 days ago · 20 km deep · 99 km away · felt by 29
- 4.287 km WSW of San Antonio, Chile · 3262 days ago · 14 km deep · 83 km away
- 4.584 km WSW of San Antonio, Chile · 3262 days ago · 14 km deep · 80 km away · felt by 30
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000atq4. Read Sun, Sep 27, 2026, 5:23 PM UTC.