Strong mag. 6.6 earthquake - Near Coast of Peru on Tuesday, 18 July 2017 - information
Major magnitude 6.6 earthquake - South Pacific Ocean, 15 km southwest of Atico, Peru, on Tuesday, 18 July 2017 at 02:05 (GMT)
Major magnitude 6.6 earthquake at 10 km depth
18 Jul 02:10 UTC: First to report: GFZ after 5 minutes.
Jul 18 02:11: Magnitude recalculated from 6.7 to 6.6.
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Date & time: 18 Jul 2017 02:05:15 UTC
Magnitude: 6.6
Depth: 10.0 km
Epicenter latitude / longitude: 16.33°S / 73.68°W
(
South Pacific Ocean,
Peru)
Nearest volcano:
Sara Sara (122 km / 76 mi)
Nearby towns and cities:15 km (9 mi) SSW of Atico (pop: 199) -->
See nearby quakes!108 km (67 mi) WNW of Camana (Camaná) (pop: 16,400) -->
See nearby quakes!159 km (99 mi) W of El Pedregal (pop: 20,100) -->
See nearby quakes!193 km (120 mi) WNW of Mollendo (Provincia de Islay) (pop: 29,000) -->
See nearby quakes!224 km (139 mi) W of Cono Norte (pop: 47,300) -->
See nearby quakes!227 km (141 mi) W of Jacobo Hunter (pop: 46,100) -->
See nearby quakes!229 km (142 mi) W of Arequipa (pop: 841,100) -->
See nearby quakes!230 km (143 mi) W of Ciudad Satelite (pop: 76,400) -->
See nearby quakes!230 km (143 mi) W of Selva Alegre (pop: 72,700) -->
See nearby quakes!598 km (372 mi) SE of Lima (pop: 7,737,000) -->
See nearby quakes!
Primary data source:
GFZ (German Research Centre for Geosciences)
Estimated released energy: 5 x 10
14 joules (139 gigawatt hours, equivalent to 1.2 x 10
5 tons of TNT or 7.5 atomic bombs!)
More info
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Data for the same earthquake reported by different agencies
Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
| Mag. | Depth | Location | Source |
| 6.6 | 10 km | Near Coast of Peru | GFZ |
| 6.4 | 60 km | NEAR COAST OF SOUTHERN PERU | EMSC |
| 6.4 | 44 km | - near the coast of southern Peru | USGS |
![shake map]()
(shakemap: USGS)
User reports for this quake (25)
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Arequipa (229 km E of epicenter) [Map] / Moderate shaking (MMI V)
(reported through our app)
Arequipa / Strong shaking (MMI VI)
Tacna (422 km ESE of epicenter) [Map] / Moderate shaking (MMI V) : Lo senti fuerte
Arequipa, Peru / Light shaking (MMI IV) : Floor was shaking, strong vibrations, but only a few seconds. Everyone in the Hotel took notice .
Arequipa / Light shaking (MMI IV)
Arequipa historical centre / Light shaking (MMI IV) : I felt the shaking inside a house, 2nd floor. The shaking became stronger slowly and water bottles were shaking on a table.
Arequipa (234.6 km E of epicenter) [Map] / Light shaking (MMI IV)
Nazca (215 km NW of epicenter) [Map] / Moderate shaking (MMI V)
Arequipa / Light shaking (MMI IV)
229.1 km E of epicenter [Map] / Light shaking (MMI IV)
Arequipa (229.6 km E of epicenter) [Map] / Light shaking (MMI IV)
593.2 km E of epicenter [Map] / Light shaking (MMI IV)
(reported through our app)
228.8 km E of epicenter [Map] / Moderate shaking (MMI V)
(reported through our app)
Arequipa (227.4 km E of epicenter) [Map] / Moderate shaking (MMI V)
Ica / Weak shaking (MMI III)
Huaral (Peru, 664 km NW of epicenter) : En Huaral no se sintió nada (reported through EMSC)
José Luis Bustamante District (Peru, 228 km E of epicenter) : Fue bastante fuerte y su intensidad comenzó a subir confirme este avanzaba, además fue bastante largo!!! Rico sentir tanta energia (reported through EMSC)
Arequipa (Peru, 228 km E of epicenter) : Fue relativamente fuerte, un buen susto. (reported through EMSC)
Arequipa (Peru, 227 km E of epicenter) : this earthquake was very strong so when I was sitting down at my bed I could realize that the objects near from me started to move and my sister was very scared (reported through EMSC)
Arequipa (Peru, 227 km E of epicenter) : Otras Pag Web indican una magnitud de 5.5 , cuando la real fue de 6.4 (reported through EMSC)
Cerro Colorado (Peru, 225 km E of epicenter) : En Arequipa-Perú se sintió moderadamente fuerte y de larga duración (reported through EMSC)
Distrito de Lima (Peru, 592 km NW of epicenter) : Lima. Epicentro Nazca 6.4 (reported through EMSC)
Arica (Chile, 430 km SE of epicenter) : Se sintió en Arica Chile (reported through EMSC)
Arica (Chile, 424 km SE of epicenter) : Ligero se sintió en Arica (reported through EMSC)
Arica (Chile, 424 km SE of epicenter) : de larga duración (reported through EMSC)
Look up aftershocks or earlier quakes
Aftershocks
More info
Based on its magnitude, the fault that was active during the quake ruptured along a surface of approx. 398 km
2 (=154 sqare miles) as a first-order estimate. The length of the rupture zone thus was probably around 35 km (21 mi).
Aftershocks typically occur during the weeks and months following the quake at or near the same fault, at distances of up to approx. two times the length of the rupture zone.
The often broadly linear arrangement of aftershock epicenters encompasses the rupture zone of the main shock (check on the
map below to verify).
04 Jan 2018 09:56 UTC
| M 3.6 | 26 km (16.2 mi) depth
| 80 km (50 mi) distance
| IGP | Details12 Dec 2017 23:30 UTC
| M 3.8 | 44 km (27.3 mi) depth
| 72 km (45 mi) distance
| IGP | Details10 Dec 2017 18:03 UTC
| M 3.9 | 15 km (9.3 mi) depth
| 96 km (60 mi) distance
| IGP | Details03 Nov 2017 05:32 UTC
| M 3.5 | 10 km (6.2 mi) depth
| 61 km (38 mi) distance
| IGP | Details29 Oct 2017 05:30 UTC
| M 4.2 | 35 km (21.7 mi) depth
| 16 km (10 mi) distance
| USGS | Details24 Oct 2017 20:59 UTC
| M 4.3 | 34 km (21.1 mi) depth
| 17 km (11 mi) distance
| IGP | Details21 Oct 2017 21:38 UTC
| M 4.1 | 43.2 km (26.8 mi) depth
| 34 km (21 mi) distance
| USGS | Details10 Aug 2017 19:31 UTC
| M 4.3 | 32 km (19.9 mi) depth
| 56 km (35 mi) distance
| IGP | Details21 Jul 2017 15:22 UTC
| M 5.5 | 10 km (6.2 mi) depth
| 109 km (68 mi) distance
| GFZ | Details20 Jul 2017 14:19 UTC
| M 4.2 | 30 km (18.6 mi) depth
| 21 km (13 mi) distance
| IGP | Details20 Jul 2017 00:38 UTC
| M 4.2 | 29 km (18 mi) depth
| 20 km (13 mi) distance
| IGP | Details18 Jul 2017 17:48 UTC
| M 4.3 | 30 km (18.6 mi) depth
| 30 km (19 mi) distance
| IGP | Details18 Jul 2017 03:28 UTC
| M 4.5 | 28 km (17.4 mi) depth
| 35 km (21 mi) distance
| IGP | Details
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