Chile earthquakes

M4.0 earthquake 9 km NNE of Iquique, Chile

A magnitude 4.0 earthquake struck 9 km NNE of Iquique, Chile on Thu, May 28, 2015, 6:55 AM GMT-3 (09:55 UTC), 44 km (27 mi) below the surface.

A larger quake followed: M5.3 13 km SW of Iquique, Chile. This one was a foreshock.

Iquique forecastMore in Chile

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.0 (mwr), light
Local time
UTC
2015-05-28 09:55:14 UTC
Depth
43.6 km (27.1 mi), shallow
Epicenter
20.145° S, 70.102° 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.

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
4.0 Mwr
Nodal plane 1
Strike 350°, dip 28°, rake 98°
Nodal plane 2
Strike 161°, dip 63°, rake 86°

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 5.5 km horizontally, 5.6 km in depth
Magnitude uncertainty
±0.06
Stations used
0

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 12 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 3.730 km NW of Iquique, Chile · 4141 days ago · 36 km deep · 31 km away · felt by 1
  2. 5.084 km WNW of Iquique, Chile · 4139 days ago · 20 km deep · 87 km away
  3. 4.187 km WNW of Iquique, Chile · 4133 days ago · 15 km deep · 91 km away
  4. 4.770 km W of Iquique, Chile · 4130 days ago · 13 km deep · 75 km away · felt by 1
  5. 4.573 km W of Iquique, Chile · 4130 days ago · 10 km deep · 79 km away
  6. 4.373 km W of Iquique, Chile · 4130 days ago · 13 km deep · 79 km away
  7. 4.083 km W of Iquique, Chile · 4130 days ago · 13 km deep · 89 km away
  8. 4.4100 km E of Iquique, Chile · 4130 days ago · 99 km deep · 95 km away · felt by 1
  9. 4.561 km W of Iquique, Chile · 4122 days ago · 24 km deep · 67 km away
  10. 4.078 km ENE of Iquique, Chile · 4113 days ago · 118 km deep · 72 km away
  11. 4.4103 km NE of Iquique, Chile · 4104 days ago · 110 km deep · 94 km away
  12. 5.313 km SW of Iquique, Chile · 4085 days ago · 34 km deep · 23 km away · felt by 13

Before

  1. 4.868 km W of Iquique, Chile · 4147 days ago · 27 km deep · 74 km away
  2. 4.1Near the coast of Tarapaca, Chile · 4147 days ago · 32 km deep · 79 km away
  3. 5.371 km W of Iquique, Chile · 4148 days ago · 17 km deep · 77 km away · felt by 7
  4. 4.436 km NNE of Iquique, Chile · 4149 days ago · 66 km deep · 28 km away
  5. 4.276 km W of Iquique, Chile · 4149 days ago · 35 km deep · 82 km away
  6. 4.296 km WNW of Iquique, Chile · 4150 days ago · 15 km deep · 98 km away
  7. 4.1100 km ENE of Iquique, Chile · 4150 days ago · 99 km deep · 92 km away
  8. 4.194 km NW of Iquique, Chile · 4150 days ago · 37 km deep · 94 km away
  9. 4.396 km WNW of Iquique, Chile · 4152 days ago · 21 km deep · 98 km away
  10. 4.387 km WNW of Iquique, Chile · 4152 days ago · 15 km deep · 89 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event us20002jyq. Read Tue, Sep 29, 2026, 2:42 PM UTC.