Major magnitude 7.0 earthquake - 177 km southwest of Arawa, Bougainville, Papua New Guinea, on Monday, October 12, 1987 at 13:57 GMT

Major magnitude 7.0 earthquake - 177 km southwest of Arawa, Bougainville, Papua New Guinea, on Monday, October 12, 1987 at 13:57 GMT Major magnitude 7.0 earthquake - 177 km southwest of Arawa, Bougainville, Papua New Guinea, on Monday, October 12, 1987 at 13:57 GMT

Major magnitude 7.0 earthquake at 25 km depth

1 Jan 00:00 UTC: First to report: USGS after 30 seconds.

Earthquake details

Date & timeOct 12, 1987 13:57:04 UTC
Local time at epicenter
StatusConfirmed
Magnitude7
Depth24.7 km
Epicenter latitude / longitude7.288°S / 154.371°E (Solomon Sea, Papua New Guinea)
Antipode7.288°N / 25.629°W
Shaking intensityVery strong shaking near epicenter
Felt0 reports
Primary data sourceUSGS (United States Geological Survey)
Nearest volcanoBagana (157 km / 98 mi)
Nearby towns and cities158 km (98 mi) WSW of Buin (pop: 750) | Show on map | Quakes nearby
164 km (102 mi) SW of Panguna (pop: 2,920) | Show on map | Quakes nearby
177 km (110 mi) SW of Arawa (pop: 40,300) | Show on map | Quakes nearby
287 km (178 mi) WNW of Gizo (New Georgia Group, Solomon Islands) (pop: 6,150) | Show on map | Quakes nearby
402 km (250 mi) SE of Kokopo (pop: 26,300) | Show on map | Quakes nearby
421 km (262 mi) SE of Rabaul (pop: 8,070) | Show on map | Quakes nearby
831 km (516 mi) ENE of Port Moresby (pop: 283,700) | Show on map | Quakes nearby
Estimated seismic energy released2 x 1015 joules (554 gigawatt hours, equivalent to 4.8 x 105 tons of TNT or 29.8 atomic bombs!) | about seismic energy
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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
7.025 kmBougainville region, Papua New GuineaUSGS
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 (112 quakes)

Date and timeMag
Depth
LocationDetails
Oct 11, 1989 03:48
33 years ago
4.4

67 km
80 km W of Torokina Islet Island, Bougainville, Papua New GuineaMore
Oct 1, 1989 19:14
33 years ago
5.2

36 km
90 km W of Stirling Island, Western Province, Solomon IslandsMore
Sep 23, 1989 18:37
33 years ago
4.5

69 km
33 km W of Alu Island, Western Province, Solomon IslandsMore
Sep 15, 1989 21:32
33 years ago
4.4

83 km
21 km W of Alu Island, Western Province, Solomon IslandsMore
Aug 30, 1989 23:53
33 years ago
4.3

51 km
125 km SW of Arawa, Bougainville, Papua New GuineaMore
Aug 20, 1989 10:58
33 years ago
4.6

94 km
88 km S of Arawa, Bougainville, Papua New GuineaMore
Jul 19, 1989 03:14
33 years ago
5.2

46 km
184 km SW of Arawa, Bougainville, Papua New GuineaMore
Jun 29, 1989 03:57
33 years ago
5.1

82 km
25 km W of Torokina Islet Island, Bougainville, Papua New GuineaMore
Jun 10, 1989 12:02
33 years ago
4.1

66 km
28 km SW of Torokina Islet Island, Bougainville, Papua New GuineaMore
May 8, 1989 13:48
33 years ago
4.4

79 km
156 km SW of Tanwoa Island, Bougainville, Papua New GuineaMore
May 8, 1989 09:45
33 years ago
4.8

58 km
135 km SW of Tanwoa Island, Bougainville, Papua New GuineaMore
Apr 10, 1989 10:08
33 years ago
4.9

67 km
26 km NW of Alu Island, Western Province, Solomon IslandsMore
Mar 10, 1989 09:10
33 years ago
5.1

106 km
Baobi Island, Solomon Islands, 89 km SE of Arawa, Bougainville, Papua New GuineaMore
Feb 18, 1989 22:28
34 years ago
4.2

80 km
82 km S of Arawa, Bougainville, Papua New GuineaMore
Feb 13, 1989 07:03
34 years ago
4.3

89 km
23 km E of Torokina Islet Island, Bougainville, Papua New GuineaMore
Feb 8, 1989 19:58
34 years ago
4.9

34 km
98 km SW of Torokina Islet Island, Bougainville, Papua New GuineaMore
Feb 8, 1989 16:04
34 years ago
5.0

47 km
91 km SW of Torokina Islet Island, Bougainville, Papua New GuineaMore
Jan 30, 1989 13:35
34 years ago
4.3

69 km
70 km S of Arawa, Bougainville, Papua New GuineaMore
Jan 15, 1989 14:27
34 years ago
4.7

62 km
30 km SW of Torokina Islet Island, Bougainville, Papua New GuineaMore
Jan 13, 1989 09:20
34 years ago
4.2

75 km
59 km SW of Arawa, Bougainville, Papua New GuineaMore
Jan 13, 1989 08:11
34 years ago
5.6

74 km
64 km S of Arawa, Bougainville, Papua New GuineaMore
Jan 9, 1989 10:09
34 years ago
5.0

25 km
116 km SW of Tanwoa Island, Bougainville, Papua New GuineaMore
Dec 12, 1988 10:08
34 years ago
5.0

149 km
29 km W of Tanwoa Island, Bougainville, Papua New GuineaMore
Dec 9, 1988 15:09
34 years ago
4.5

186 km
22 km NW of Arawa, Bougainville, Papua New GuineaMore
Nov 28, 1988 17:57
34 years ago
5.0

71 km
34 km W of Alu Island, Western Province, Solomon IslandsMore
Nov 20, 1988 04:33
34 years ago
4.1

33 km
52 km SE of Stirling Island, Western Province, Solomon IslandsMore
Nov 20, 1988 03:41
34 years ago
5.0

58 km
44 km SW of Torokina Islet Island, Bougainville, Papua New GuineaMore
Oct 22, 1988 00:55
34 years ago
4.8

60 km
36 km SW of Torokina Islet Island, Bougainville, Papua New GuineaMore
Oct 14, 1988 22:47
34 years ago
4.3

168 km
37 km NW of Torokina Islet Island, Bougainville, Papua New GuineaMore
Oct 12, 1988 14:45
34 years ago
4.4

72 km
34 km S of Torokina Islet Island, Bougainville, Papua New GuineaMore
Sep 30, 1988 10:40
34 years ago
4.8

75 km
28 km N of Treasury s Island, Western Province, Solomon IslandsMore
Aug 24, 1988 23:43
34 years ago
4.9

39 km
191 km SW of Arawa, Bougainville, Papua New GuineaMore
Aug 23, 1988 14:41
34 years ago
4.7

415 km
53 km S of Torokina Islet Island, Bougainville, Papua New GuineaMore
Aug 20, 1988 12:57
34 years ago
5.4

27 km
293 km W of Arawa, Bougainville, Papua New GuineaMore
Aug 5, 1988 18:47
34 years ago
4.8

65 km
79 km W of Tanwoa Island, Bougainville, Papua New GuineaMore
Aug 2, 1988 05:30
34 years ago
3.9

33 km
272 km W of Arawa, Bougainville, Papua New GuineaMore
Jul 31, 1988 15:24
34 years ago
4.0

33 km
300 km W of Arawa, Bougainville, Papua New GuineaMore
Jul 31, 1988 06:43
34 years ago
4.7

21 km
284 km W of Arawa, Bougainville, Papua New GuineaMore
Jul 31, 1988 03:45
34 years ago
4.7

28 km
279 km W of Arawa, Bougainville, Papua New GuineaMore
Jul 31, 1988 01:28
34 years ago
5.5

33 km
274 km W of Arawa, Bougainville, Papua New GuineaMore
Jul 29, 1988 08:31
34 years ago
5.0

46 km
245 km SW of Arawa, Bougainville, Papua New GuineaMore
Jul 27, 1988 23:48
34 years ago
4.9

48 km
Solomon IslandsMore
Jul 27, 1988 16:45
34 years ago
4.2

33 km
272 km W of Arawa, Bougainville, Papua New GuineaMore
Jul 27, 1988 14:36
34 years ago
3.6

102 km
73 km S of Arawa, Bougainville, Papua New GuineaMore
Jul 27, 1988 12:29
34 years ago
4.6

195 km
Otua Islet, 51 km SE of Arawa, Bougainville, Papua New GuineaMore
Jul 26, 1988 20:11
34 years ago
4.4

33 km
262 km S of Kokopo, East New Britain Province, Papua New GuineaMore
Jul 24, 1988 22:16
34 years ago
5.3

33 km
Papua New GuineaMore
Jul 24, 1988 14:47
34 years ago
5.3

31 km
292 km W of Arawa, Bougainville, Papua New GuineaMore
Jul 24, 1988 12:20
34 years ago
3.8

33 km
284 km W of Arawa, Bougainville, Papua New GuineaMore
Jul 24, 1988 11:57
34 years ago
3.8

33 km
299 km W of Arawa, Bougainville, Papua New GuineaMore
Jul 24, 1988 05:48
34 years ago
4.5

33 km
277 km W of Arawa, Bougainville, Papua New GuineaMore
Jul 24, 1988 02:51
34 years ago
4.9

80 km
32 km SW of Torokina Islet Island, Bougainville, Papua New GuineaMore
Jul 24, 1988 02:21
34 years ago
4.2

33 km
275 km W of Arawa, Bougainville, Papua New GuineaMore
Jul 23, 1988 23:58
34 years ago
4.3

33 km
269 km SW of Arawa, Bougainville, Papua New GuineaMore
Jul 23, 1988 22:32
34 years ago
5.2

34 km
297 km W of Arawa, Bougainville, Papua New GuineaMore
Jul 23, 1988 19:55
34 years ago
5.2

22 km
254 km S of Kokopo, East New Britain Province, Papua New GuineaMore
Jul 23, 1988 18:24
34 years ago
4.0

33 km
252 km W of Arawa, Bougainville, Papua New GuineaMore
Jul 23, 1988 17:11
34 years ago
5.6

28 km
284 km W of Arawa, Bougainville, Papua New GuineaMore
Jul 23, 1988 16:19
34 years ago
4.7

50 km
299 km W of Arawa, Bougainville, Papua New GuineaMore
Jul 8, 1988 16:35
34 years ago
5.6

74 km
40 km W of Torokina Islet Island, Bougainville, Papua New GuineaMore
Jul 4, 1988 21:36
34 years ago
4.8

63 km
124 km SW of Arawa, Bougainville, Papua New GuineaMore
Jun 23, 1988 08:08
34 years ago
5.0

65 km
168 km SW of Arawa, Bougainville, Papua New GuineaMore
Jun 15, 1988 17:37
34 years ago
5.1

45 km
40 km W of Torokina Islet Island, Bougainville, Papua New GuineaMore
May 8, 1988 18:30
34 years ago
3.8

63 km
62 km SW of Tanwoa Island, Bougainville, Papua New GuineaMore
May 3, 1988 12:02
34 years ago
4.5

33 km
91 km SW of Torokina Islet Island, Bougainville, Papua New GuineaMore
Apr 23, 1988 22:58
34 years ago
4.6

33 km
36 km W of Torokina Islet Island, Bougainville, Papua New GuineaMore
Apr 20, 1988 02:38
34 years ago
5.2

8.4 km
265 km W of Arawa, Bougainville, Papua New GuineaMore
Apr 12, 1988 11:20
34 years ago
4.8

28 km
68 km W of Torokina Islet Island, Bougainville, Papua New GuineaMore
Apr 2, 1988 20:27
34 years ago
5.4

61 km
78 km S of Arawa, Bougainville, Papua New GuineaMore
Mar 27, 1988 19:58
34 years ago
4.7

13 km
97 km SW of Torokina Islet Island, Bougainville, Papua New GuineaMore
Mar 23, 1988 15:22
34 years ago
4.7

66 km
Torokina Islet, 70 km W of Arawa, Bougainville, Papua New GuineaMore
Mar 21, 1988 19:23
34 years ago
5.0

10 km
183 km SW of Arawa, Bougainville, Papua New GuineaMore
Feb 24, 1988 03:28
35 years ago
5.2

68 km
24 km NW of Alu Island, Western Province, Solomon IslandsMore
Feb 15, 1988 16:22
35 years ago
4.0

21 km
165 km S of Wallis Island, New Ireland, Papua New GuineaMore
Feb 14, 1988 05:08
35 years ago
5.1

23 km
179 km W of Arawa, Bougainville, Papua New GuineaMore
Feb 5, 1988 17:24
35 years ago
3.9

48 km
64 km S of Arawa, Bougainville, Papua New GuineaMore
Jan 16, 1988 10:03
35 years ago
4.6

56 km
81 km W of Torokina Islet Island, Bougainville, Papua New GuineaMore
Jan 14, 1988 07:14
35 years ago
4.0

28 km
64 km W of Torokina Islet Island, Bougainville, Papua New GuineaMore
Jan 13, 1988 17:57
35 years ago
4.5

33 km
71 km SW of Torokina Islet Island, Bougainville, Papua New GuineaMore
Jan 13, 1988 01:14
35 years ago
5.3

42 km
55 km W of Torokina Islet Island, Bougainville, Papua New GuineaMore
Jan 12, 1988 00:44
35 years ago
4.7

33 km
65 km SW of Torokina Islet Island, Bougainville, Papua New GuineaMore
Jan 11, 1988 22:27
35 years ago
5.9

21 km
69 km W of Torokina Islet Island, Bougainville, Papua New GuineaMore
Jan 10, 1988 04:48
35 years ago
4.3

33 km
30 km W of Torokina Islet Island, Bougainville, Papua New GuineaMore
Jan 6, 1988 14:06
35 years ago
4.9

19 km
Solomon Islands, 181 km SW of Arawa, Bougainville, Papua New GuineaMore
Dec 12, 1987 16:19
35 years ago
3.9

47 km
58 km W of Torokina Islet Island, Bougainville, Papua New GuineaMore
Dec 4, 1987 19:51
35 years ago
6.4

145 km
25 km SW of Tanwoa Island, Bougainville, Papua New GuineaMore
Nov 22, 1987 07:53
35 years ago
4.2

72 km
25 km NW of Alu Island, Western Province, Solomon IslandsMore
Nov 12, 1987 13:35
35 years ago
4.2

33 km
81 km W of Treasury s Island, Western Province, Solomon IslandsMore
Nov 1, 1987 17:03
35 years ago
4.2

33 km
179 km SW of Arawa, Bougainville, Papua New GuineaMore
Oct 27, 1987 12:34
35 years ago
4.6

10 km
175 km SW of Arawa, Bougainville, Papua New GuineaMore
Oct 25, 1987 16:28
35 years ago
4.7

79 km
51 km S of Otua Islet Island, Bougainville, Papua New GuineaMore
Oct 16, 1987 16:42
35 years ago
4.7

15 km
183 km SW of Arawa, Bougainville, Papua New GuineaMore
Oct 15, 1987 20:41
35 years ago
4.6

33 km
172 km SW of Arawa, Bougainville, Papua New GuineaMore
Oct 14, 1987 18:26
35 years ago
4.9

29 km
176 km SW of Arawa, Bougainville, Papua New GuineaMore
Oct 14, 1987 11:39
35 years ago
5.2

33 km
172 km SW of Arawa, Bougainville, Papua New GuineaMore
Oct 14, 1987 07:22
35 years ago
4.4

33 km
198 km SW of Arawa, Bougainville, Papua New GuineaMore
Oct 13, 1987 13:54
35 years ago
5.6

15 km
178 km SW of Arawa, Bougainville, Papua New GuineaMore
Oct 13, 1987 10:40
35 years ago
4.6

33 km
179 km SW of Arawa, Bougainville, Papua New GuineaMore
Oct 13, 1987 09:38
35 years ago
4.7

17 km
118 km W of Treasury s Island, Western Province, Solomon IslandsMore
Oct 12, 1987 22:22
35 years ago
4.7

13 km
178 km SW of Arawa, Bougainville, Papua New GuineaMore
Oct 12, 1987 20:48
35 years ago
4.7

18 km
172 km SW of Arawa, Bougainville, Papua New GuineaMore
Oct 12, 1987 19:34
35 years ago
4.8

33 km
173 km SW of Arawa, Bougainville, Papua New GuineaMore
Oct 12, 1987 19:00
35 years ago
4.2

33 km
182 km SW of Arawa, Bougainville, Papua New GuineaMore
Oct 12, 1987 18:56
35 years ago
4.7

18 km
166 km SW of Arawa, Bougainville, Papua New GuineaMore
Oct 12, 1987 17:58
35 years ago
3.9

33 km
118 km SW of Torokina Islet Island, Bougainville, Papua New GuineaMore
Oct 12, 1987 16:17
35 years ago
4.7

33 km
170 km SW of Arawa, Bougainville, Papua New GuineaMore
Oct 12, 1987 16:04
35 years ago
3.8

32 km
166 km SW of Arawa, Bougainville, Papua New GuineaMore
Oct 12, 1987 15:40
35 years ago
4.1

33 km
114 km SW of Torokina Islet Island, Bougainville, Papua New GuineaMore
Oct 12, 1987 15:13
35 years ago
5.0

34 km
174 km SW of Arawa, Bougainville, Papua New GuineaMore
Oct 12, 1987 14:49
35 years ago
4.8

22 km
181 km SW of Arawa, Bougainville, Papua New GuineaMore
Oct 12, 1987 14:21
35 years ago
5.3

24 km
173 km SW of Arawa, Bougainville, Papua New GuineaMore
Oct 12, 1987 14:09
35 years ago
5.5

18 km
167 km SW of Arawa, Bougainville, Papua New GuineaMore
Show all

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