M5.2 earthquake 128 km E of Antofagasta, Chile
A magnitude 5.2 earthquake struck 128 km E of Antofagasta, Chile on Wed, Jul 19, 2017, 7:22 PM GMT-4 (23:22 UTC), 91 km (57 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.2 (Mww, W-phase moment), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-07-19 23:22:27 UTC
- Depth
- 91.4 km (56.8 mi), intermediate-depth
- Epicenter
- 23.873° S, 69.160° W
- Region
- Chile
- Felt reports
- 7
- 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 |
|---|---|---|---|
| 5.2 | Mww, W-phase moment | USGS National Earthquake Information Center | Preferred · Reviewed · ±0.054 · 33 stations |
| 5.26 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
| 5.2 | Mwr, regional moment | USGS National Earthquake Information Center | Moment tensor · Reviewed |
| 5.3 | Mwb, body-wave moment | USGS National Earthquake Information Center | Moment tensor · Reviewed |
Did you feel it?
7 people reported to the USGS what they felt; the strongest reported shaking was IV, light shaking.
Fault motion and ground failure
How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.
- Faulting
- Oblique normal
- Moment magnitude
- 5.2 Mww
- Nodal plane 1
- Strike 166°, dip 49°, rake -54°
- Nodal plane 2
- Strike 298°, dip 52°, rake -124°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 4.2 km horizontally, 3.2 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From location
- Station coverage gap
- 49°
- Stations used
- 295
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.2 and up: 3 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us20009yal (also filed as iscgem610786180). Read Thu, Oct 1, 2026, 11:47 AM UTC.