M5.2 earthquake 92 km SSE of Arica, Chile
A magnitude 5.2 earthquake struck 92 km SSE of Arica, Chile on Mon, Sep 4, 2017, 6:55 PM GMT-3 (21:55 UTC), 61 km (38 mi) below the surface.
A larger quake followed: M6.3 58 km E of Arica, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.2 (mww), moderate
- Local time
- UTC
- 2017-09-04 21:55:19 UTC
- Depth
- 61.1 km (37.9 mi), shallow
- Epicenter
- 19.262° S, 70.010° W
- Region
- Chile
- Felt reports
- 13
- Strongest shaking
- IV, light 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
- IV, light shaking
- Peak ground acceleration
- 514.0% of gravity
- Peak ground velocity
- 1.3 cm/s
- Map
- Automatic
Did you feel it?
13 people reported to the USGS what they felt; the strongest reported shaking was V, moderate 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
- 5.2 Mww
- Nodal plane 1
- Strike 355°, dip 44°, rake -75°
- Nodal plane 2
- Strike 155°, dip 48°, rake -104°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.1 km horizontally, 2.1 km in depth
- Magnitude uncertainty
- ±0.07
- Depth from
- From location
- Station coverage gap
- 53°
- Stations used
- 254
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.2 and up: 7 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.1114 km NE of Iquique, Chile · 3299 days ago · 98 km deep · 55 km away
- 6.358 km E of Arica, Chile · 3278 days ago · 85 km deep · 81 km away · felt by 82
- 4.459 km ESE of Arica, Chile · 3278 days ago · 91 km deep · 79 km away
- 4.856 km ESE of Arica, Chile · 3278 days ago · 94 km deep · 80 km away
- 4.147 km ESE of Arica, Chile · 3275 days ago · 102 km deep · 75 km away
- 3.938 km ESE of Arica, Chile · 3272 days ago · 89 km deep · 72 km away
- 4.3Tarapaca, Chile · 3254 days ago · 105 km deep · 85 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000afnk (also filed as iscgem610946058). Read Wed, Sep 30, 2026, 7:25 PM UTC.