M4.6 earthquake 85 km SSE of Arica, Chile
A magnitude 4.6 earthquake struck 85 km SSE of Arica, Chile on Tue, Apr 18, 2017, 4:11 AM GMT-3 (07:11 UTC), 65 km (40 mi) below the surface.
A larger quake followed: M5.4 101 km NE of Iquique, Chile. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.6 (mb), light
- Local time
- UTC
- 2017-04-18 07:11:55 UTC
- Depth
- 64.9 km (40.3 mi), shallow
- Epicenter
- 19.193° S, 70.005° W
- Region
- Chile
- Felt reports
- 1
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
1 person reported to the USGS what they felt; the strongest reported shaking was III, weak shaking.

How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 5.2 km horizontally, 6.2 km in depth
- Magnitude uncertainty
- ±0.10
- Depth from
- From location
- Station coverage gap
- 130°
- Stations used
- 51
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.6 and up: 5 in the 60 days after this one and 6 in the 30 days before it.
After
- 5.4101 km NE of Iquique, Chile · 3444 days ago · 105 km deep · 89 km away · felt by 6
- 4.052 km SSE of Arica, Chile · 3424 days ago · 31 km deep · 34 km away · felt by 1
- 4.1113 km SE of Arica, Chile · 3421 days ago · 103 km deep · 57 km away
- 4.571 km N of Iquique, Chile · 3405 days ago · 53 km deep · 44 km away
- 4.359 km ESE of Arica, Chile · 3399 days ago · 126 km deep · 60 km away
Before
- 4.579 km SSE of Arica, Chile · 3453 days ago · 58 km deep · 13 km away · felt by 2
- 4.392 km NNW of Iquique, Chile · 3455 days ago · 44 km deep · 53 km away
- 4.337 km N of Iquique, Chile · 3468 days ago · 35 km deep · 77 km away
- 4.086 km SSE of Arica, Chile · 3471 days ago · 68 km deep · 4 km away
- 4.3108 km SE of Arica, Chile · 3476 days ago · 122 km deep · 56 km away
- 4.173 km ESE of Arica, Chile · 3482 days ago · 104 km deep · 74 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event us10008iis. Read Wed, Sep 30, 2026, 5:50 PM UTC.