M4.0 earthquake 70 km SSE of Iquique, Chile
A magnitude 4.0 earthquake struck 70 km SSE of Iquique, Chile on Sat, Oct 21, 2017, 1:19 PM GMT-3 (16:19 UTC), 61 km (38 mi) below the surface.
A larger quake followed: M4.7 125 km ESE 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
- 4.0 (ml), light
- Local time
- UTC
- 2017-10-21 16:19:03 UTC
- Depth
- 61.0 km (37.9 mi), shallow
- Epicenter
- 20.769° S, 69.815° W
- Region
- Chile
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Location uncertainty
- About 6.2 km horizontally, 8.5 km in depth
- Depth from
- From location
- Station coverage gap
- 80°
- Stations used
- 24
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 2 in the 30 days before it.
After
- 4.196 km E of Iquique, Chile · 3243 days ago · 95 km deep · 87 km away
- 4.7125 km ESE of Iquique, Chile · 3239 days ago · 110 km deep · 73 km away
- 4.3130 km ESE of Iquique, Chile · 3235 days ago · 105 km deep · 97 km away
- 4.2103 km E of Iquique, Chile · 3210 days ago · 101 km deep · 87 km away · felt by 1
Before
Earthquakes todayChile earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event us1000av8j. Read Wed, Sep 30, 2026, 10:24 PM UTC.