M6.0 earthquake 88 km WSW of San Antonio, Chile
A magnitude 6.0 earthquake struck 88 km WSW of San Antonio, Chile on Thu, Oct 27, 2016, 5:32 PM GMT-3 (20:32 UTC), 13 km (8 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.0 (Mww, W-phase moment), strong
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2016-10-27 20:32:55 UTC
- Depth
- 12.6 km (7.8 mi), shallow
- Epicenter
- 33.777° S, 72.532° W
- Region
- Chile
- Felt reports
- 14
- Strongest shaking
- IV, light shaking
- PAGER alert
- Green
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Magnitude estimates
Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.
| Mag. | Scale | Computed by | Notes |
|---|---|---|---|
| 6.0 | Mww, W-phase moment | USGS National Earthquake Information Center | Preferred · Reviewed |
| 5.97 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
| 5.9 | Mwb, body-wave moment | USGS National Earthquake Information Center | Moment tensor · Reviewed |
What happened
The USGS’s account of the effects of this earthquake.
Felt (IV) at Navidad; (III) at Casablanca, Constitucion, Pichilemu and Valparaiso; (II) at Santiago, Tiltil and Vina del Mar. Also felt at Curico, Limache, Machali, San Antonio and San Bernardo.
From the USGS event page for us100072gn. U.S. Geological Survey text and figures are in the public domain.
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- IV, light shaking
- Map
- Automatic
Did you feel it?
14 people reported to the USGS what they felt; the strongest reported shaking was IV, light shaking.
Estimated impact
The USGS PAGER system estimates deaths and economic losses from the shaking and the population and buildings exposed to it.
- Alert level
- Green: little or no damage or loss of life expected
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
- 6.0 Mww
- Nodal plane 1
- Strike 184°, dip 71°, rake 86°
- Nodal plane 2
- Strike 15°, dip 20°, rake 101°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.2 km horizontally, 2.7 km in depth
- Depth from
- From location
- Station coverage gap
- 78°
- Stations used
- 422
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 3.0 and up: 4 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.396 km W of San Antonio, Chile · 3627 days ago · 15 km deep · 8 km away
- 5.294 km WSW of San Antonio, Chile · 3625 days ago · 10 km deep · 9 km away · felt by 1
- 4.985 km WSW of San Antonio, Chile · 3623 days ago · 9 km deep · 3 km away · felt by 5
- 3.943 km S of San Antonio, Chile · 3601 days ago · 41 km deep · 82 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us100072gn (also filed as gcmt20161027203255, iscgem611830890). Read Fri, Oct 2, 2026, 11:46 AM UTC.