M4.9 earthquake 60 km WSW of San Antonio, Chile
A magnitude 4.9 earthquake struck 60 km WSW of San Antonio, Chile on Thu, Jul 6, 2017, 11:04 PM GMT-4 (03:04 UTC), 13 km (8 mi) below the surface.
A larger quake followed: M5.4 85 km W of San Antonio, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.9 (Mwr, regional moment), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-07-07 03:04:48 UTC
- Depth
- 13.0 km (8.1 mi), shallow
- Epicenter
- 33.727° S, 72.238° W
- Region
- Chile
- Felt reports
- 33
- 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 |
|---|---|---|---|
| 4.9 | Mwr, regional moment | USGS National Earthquake Information Center | Preferred · Reviewed · ±0.042 · 55 stations |
| 5.09 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
Did you feel it?
33 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
- 4.9 Mwr
- Nodal plane 1
- Strike 19°, dip 23°, rake 115°
- Nodal plane 2
- Strike 173°, dip 69°, rake 80°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 2.4 km horizontally, 3.2 km in depth
- Magnitude uncertainty
- ±0.04
- Depth from
- From location
- Station coverage gap
- 66°
- Stations used
- 125
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.9 and up: 8 in the 60 days after this one and 3 in the 30 days before it.
After
- 4.067 km W of San Antonio, Chile · 3375 days ago · 9 km deep · 8 km away · felt by 5
- 4.695 km W of San Antonio, Chile · 3368 days ago · 12 km deep · 36 km away · felt by 4
- 5.485 km W of San Antonio, Chile · 3368 days ago · 10 km deep · 26 km away · felt by 17
- 4.131 km SSW of Melipilla, Chile · 3366 days ago · 51 km deep · 88 km away · felt by 9
- 4.330 km W of Valparaíso, Chile · 3360 days ago · 23 km deep · 80 km away · felt by 32
- 4.340 km W of Valparaíso, Chile · 3358 days ago · 18 km deep · 73 km away · felt by 17
- 4.176 km WNW of Santa Cruz, Chile · 3338 days ago · 24 km deep · 63 km away
- 4.250 km W of Valparaíso, Chile · 3322 days ago · 18 km deep · 80 km away · felt by 31
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us100097jl (also filed as iscgem613594725). Read Sat, Oct 3, 2026, 3:20 AM UTC.