M6.3 earthquake 58 km E of Arica, Chile
A magnitude 6.3 earthquake struck 58 km E of Arica, Chile on Tue, Oct 10, 2017, 3:32 AM GMT-3 (06:32 UTC), 85 km (53 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 6.3 (mww), strong
- Local time
- UTC
- 2017-10-10 06:32:21 UTC
- Depth
- 85.0 km (52.8 mi), intermediate-depth
- Epicenter
- 18.572° S, 69.753° W
- Region
- Chile
- Felt reports
- 82
- Strongest shaking
- V, moderate shaking
- PAGER alert
- Green
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- V, moderate shaking
- Peak ground acceleration
- 8.4% of gravity
- Peak ground velocity
- 1.7 cm/s
- Map
- Automatic
Did you feel it?
82 people reported to the USGS what they felt; the strongest reported shaking was VI, strong 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
| Range | Chance |
|---|---|
| Under 1 | 65% |
| 1 to 10 | 30% |
| 10 to 100 | 4% |
| 100 to 1,000 | Under 1% |
| 1,000 to 10,000 | Under 1% |
| 10,000 to 100,000 | Under 1% |
| 100,000 to 10,000,000 | Under 1% |
| Range, million USD | Chance |
|---|---|
| Under 1 | 65% |
| 1 to 10 | 30% |
| 10 to 100 | 4% |
| 100 to 1,000 | Under 1% |
| 1,000 to 10,000 | Under 1% |
| 10,000 to 100,000 | Under 1% |
| 100,000 to 10,000,000 | Under 1% |
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
- 6.3 Mww
- Nodal plane 1
- Strike 180°, dip 18°, rake -70°
- Nodal plane 2
- Strike 339°, dip 73°, rake -96°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 6.0 km horizontally, 1.8 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From modeling of broad-band P waveforms
- Station coverage gap
- 23°
- Stations used
- 195
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 3.3 and up: 5 in the 60 days after this one and 4 in the 30 days before it.
After
- 4.459 km ESE of Arica, Chile · 3278 days ago · 91 km deep · 3 km away
- 4.856 km ESE of Arica, Chile · 3278 days ago · 94 km deep · 3 km away
- 4.147 km ESE of Arica, Chile · 3275 days ago · 102 km deep · 13 km away
- 3.938 km ESE of Arica, Chile · 3272 days ago · 89 km deep · 23 km away
- 4.312 km E of Palca, Peru · 3240 days ago · 153 km deep · 91 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000b3dm (also filed as iscgem617824321). Read Wed, Sep 30, 2026, 10:17 PM UTC.