M5.5 earthquake 110 km WNW of Iquique, Chile
A magnitude 5.5 earthquake struck 110 km WNW of Iquique, Chile on Mon, Dec 11, 2017, 4:00 PM GMT-3 (19:00 UTC), 12 km (7 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.5 (mww), moderate
- Local time
- UTC
- 2017-12-11 19:00:56 UTC
- Depth
- 12.0 km (7.5 mi), shallow
- Epicenter
- 19.708° S, 71.059° W
- Region
- Chile
- Felt reports
- 10
- Strongest shaking
- III, weak 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
- III, weak shaking
- Peak ground acceleration
- 69.0% of gravity
- Peak ground velocity
- 0.7 cm/s
- Map
- Automatic
Did you feel it?
10 people reported to the USGS what they felt; the strongest reported shaking was IV, light 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
- Reverse (thrust)
- Moment magnitude
- 5.5 Mww
- Nodal plane 1
- Strike 346°, dip 18°, rake 98°
- Nodal plane 2
- Strike 157°, dip 73°, rake 87°
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.8 km horizontally, 1.7 km in depth
- Magnitude uncertainty
- ±0.05
- Depth from
- From modeling of broad-band P waveforms
- Station coverage gap
- 94°
- Stations used
- 147
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.5 and up: 3 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.0115 km WNW of Iquique, Chile · 3215 days ago · 10 km deep · 5 km away
- 4.444 km N of Iquique, Chile · 3212 days ago · 10 km deep · 88 km away · felt by 1
- 4.5157 km WNW of Iquique, Chile · 3191 days ago · 12 km deep · 57 km away
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us2000c2xt (also filed as iscgem611600124). Read Thu, Oct 1, 2026, 1:26 AM UTC.