M5.3 earthquake 21 km ENE of Chiguata, Peru
A magnitude 5.3 earthquake struck 21 km ENE of Chiguata, Peru on Wed, Sep 20, 2017, 12:26 AM GMT-5 (05:26 UTC), 106 km (66 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.3 (Mww, W-phase moment), moderate
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 2017-09-20 05:26:10 UTC
- Depth
- 106.2 km (66.0 mi), intermediate-depth
- Epicenter
- 16.293° S, 71.233° W
- Region
- Peru
- Felt reports
- 28
- 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 |
|---|---|---|---|
| 5.3 | Mww, W-phase moment | USGS National Earthquake Information Center | Preferred · Reviewed · ±0.055 · 32 stations |
| 5.34 | Mw, moment | ISC-GEM global catalog | Final · ±0.1 |
Did you feel it?
28 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
- Normal
- Moment magnitude
- 5.3 Mww
- Nodal plane 1
- Strike 135°, dip 37°, rake -108°
- Nodal plane 2
- Strike 337°, dip 55°, rake -77°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 7.7 km horizontally, 4.3 km in depth
- Magnitude uncertainty
- ±0.06
- Depth from
- From location
- Station coverage gap
- 68°
- Stations used
- 112
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.3 and up: 2 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.414 km W of Santa Lucía, Peru · 3272 days ago · 210 km deep · 83 km away
- 4.215 km SW of Lluta, Peru · 3246 days ago · 95 km deep · 97 km away
Before
Earthquakes todayPeru earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000arh1 (also filed as iscgem610995955). Read Fri, Oct 2, 2026, 4:35 AM UTC.