Major magnitude 7.1 earthquake - South Pacific Ocean, 36 km southwest of Mollendo, Peru, on Tuesday, April 12, 1988 at 23:19 (GMT)

Major magnitude 7.1 earthquake - South Pacific Ocean, 36 km southwest of Mollendo, Peru, on Tuesday, April 12, 1988 at 23:19 (GMT)

Major magnitude 7.1 earthquake at 33 km depth

1 Jan 00:00 UTC: First to report: USGS after 30 seconds.
Date & time: Apr 12, 1988 23:19:55 UTC
Magnitude: 7.1
Depth: 33.1 km
Epicenter latitude / longitude: 17.192°S / 72.305°W (South Pacific Ocean, Peru)
Antipode: 17.192°N / 107.695°E
Nearest volcano: Cerro Nicholson (119 km / 74 mi)
Nearby towns and cities:
31 km (19 mi) SW of Islay (Matarani) (pop: 4,820) --> See nearby quakes!
36 km (22 mi) WSW of Mollendo (Provincia de Islay) (pop: 29,000) --> See nearby quakes!
55 km (34 mi) W of Punta de Bombon (Provincia de Islay) (pop: 6,340) --> See nearby quakes!
59 km (37 mi) WSW of Cocachacra (Provincia de Islay) (pop: 8,800) --> See nearby quakes!
77 km (48 mi) SE of Camana (Camaná) (pop: 16,400) --> See nearby quakes!
93 km (58 mi) S of El Pedregal (pop: 20,100) --> See nearby quakes!
118 km (73 mi) SW of Ciudad Satelite (pop: 76,400) --> See nearby quakes!
120 km (75 mi) SW of Arequipa (pop: 841,100) --> See nearby quakes!
145 km (90 mi) W of Moquegua (pop: 54,500) --> See nearby quakes!
766 km (476 mi) SE of Lima (pop: 7,737,000) --> See nearby quakes!
Primary data source: USGS (United States Geological Survey)
Estimated released energy: 2.8 x 1015 joules (783 gigawatt hours, equivalent to 6.7 x 105 tons of TNT or 42.1 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.DepthLocationSource
7.133 kmnear the coast of southern PeruUSGS
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.

User reports for this quake

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
There are no user reports for this quake.
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Aftershocks

[More info]

Recorded aftershocks, latest first (36 quakes)

Date and timeMag
Depth
LocationDetails
Apr 9, 1990 07:21
32 years ago
4.4

41 km
South Pacific Ocean, 106 km S of Ilo, Moquegua, PeruMore
Apr 4, 1990 05:47
32 years ago
5.5

93 km
57 km NW of Camana, Arequipa, PeruMore
Mar 16, 1990 00:29
32 years ago
4.8

126 km
Jorge Basadre, Tacna, 43 km SE of Moquegua, PeruMore
Feb 10, 1990 03:34
32 years ago
5.9

34 km
South Pacific Ocean, 126 km S of Ilo, Moquegua, PeruMore
Feb 10, 1990 02:46
32 years ago
5.0

51 km
South Pacific Ocean, 137 km SW of Tacna, PeruMore
Feb 2, 1990 15:56
32 years ago
4.7

47 km
South Pacific Ocean, 139 km SW of Tacna, PeruMore
Jan 7, 1990 08:19
32 years ago
4.7

67 km
42 km W of Tacna, PeruMore
Nov 29, 1989 03:02
32 years ago
4.7

93 km
Provincia de Caraveli, 111 km NW of Camana, Arequipa, PeruMore
Nov 29, 1989 01:00
32 years ago
6.3

71 km
Southern PeruMore
Nov 9, 1989 04:15
32 years ago
5.0

124 km
Provincia de Condesuyos, 22 km W of Orcopampa, PeruMore
Aug 27, 1989 12:41
32 years ago
4.9

119 km
49 km NW of Tacna, PeruMore
Aug 14, 1989 00:50
32 years ago
4.3

122 km
Southern PeruMore
Jul 21, 1989 01:45
32 years ago
4.7

137 km
Provincia de Caraveli, Arequipa, 77 km SE of Coracora, PeruMore
Mar 29, 1989 04:06
33 years ago
5.4

42 km
South Pacific Ocean, 127 km SW of Ilo, Moquegua, PeruMore
Feb 17, 1989 15:12
33 years ago
5.2

46 km
South Pacific Ocean, 80 km SW of Mollendo, Provincia de Islay, Arequipa, PeruMore
Dec 6, 1988 00:18
33 years ago
5.1

51 km
South Pacific Ocean, 148 km S of Camana, Arequipa, PeruMore
Oct 25, 1988 19:01
33 years ago
4.6

38 km
South Pacific Ocean, 169 km SW of Ilo, Moquegua, PeruMore
Oct 22, 1988 05:41
33 years ago
4.4

10 km
20 km NW of El Pedregal, Provincia de Caylloma, Arequipa, PeruMore
Oct 8, 1988 23:39
33 years ago
4.6

91 km
Near the Coast of Southern PeruMore
Sep 20, 1988 16:20
33 years ago
4.8

106 km
49 km NW of Camana, Arequipa, PeruMore
Aug 3, 1988 07:52
33 years ago
5.4

10 km
8.3 km N of Camana, Arequipa, PeruMore
Jul 7, 1988 21:45
33 years ago
5.1

67 km
37 km NW of Camana, Arequipa, PeruMore
Jul 4, 1988 13:54
33 years ago
5.8

20 km
South Pacific Ocean, 40 km W of Ilo, Moquegua, PeruMore
Apr 21, 1988 08:48
34 years ago
5.0

52 km
South Pacific Ocean, 70 km SW of Mollendo, Provincia de Islay, Arequipa, PeruMore
Apr 17, 1988 02:50
34 years ago
5.6

33 km
South Pacific Ocean, 59 km SW of Mollendo, Provincia de Islay, Arequipa, PeruMore
Apr 14, 1988 09:03
34 years ago
5.1

33 km
South Pacific Ocean, 55 km SW of Mollendo, Provincia de Islay, Arequipa, PeruMore
Apr 14, 1988 08:09
34 years ago
4.7

48 km
South Pacific Ocean, 104 km SW of Mollendo, Provincia de Islay, Arequipa, PeruMore
Apr 13, 1988 12:07
34 years ago
4.9

67 km
South Pacific Ocean, 69 km SW of Mollendo, Provincia de Islay, Arequipa, PeruMore
Apr 13, 1988 10:43
34 years ago
4.9

45 km
South Pacific Ocean, 88 km SW of Mollendo, Provincia de Islay, Arequipa, PeruMore
Apr 13, 1988 06:22
34 years ago
5.5

37 km
South Pacific Ocean, 73 km SW of Mollendo, Provincia de Islay, Arequipa, PeruMore
Apr 13, 1988 02:16
34 years ago
4.9

33 km
South Pacific Ocean, 36 km SW of Mollendo, Provincia de Islay, Arequipa, PeruMore
Apr 13, 1988 01:59
34 years ago
4.8

33 km
South Pacific Ocean, 99 km SW of Mollendo, Provincia de Islay, Arequipa, PeruMore
Apr 13, 1988 00:39
34 years ago
6.2

16 km
South Pacific Ocean, 59 km SW of Mollendo, Provincia de Islay, Arequipa, PeruMore
Apr 13, 1988 00:37
34 years ago
5.3

33 km
South Pacific Ocean, 50 km SW of Mollendo, Provincia de Islay, Arequipa, PeruMore
Apr 12, 1988 23:55
34 years ago
5.4

33 km
South Pacific Ocean, 72 km SW of Mollendo, Provincia de Islay, Arequipa, PeruMore
Apr 12, 1988 23:36
34 years ago
5.2

33 km
South Pacific Ocean, 26 km SW of Mollendo, Provincia de Islay, Arequipa, PeruMore

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