Major mag. 7.0 earthquake - New Britain Region, Papua New Guinea on Monday, 26 July 1971
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Date & time: Monday, 26 July 1971 02:25 UTC
Magnitude: 7.0
Depth: 40.0 km
Epicenter latitude / longitude: 5.116°S / 152.282°E
(
Papua New Guinea)
Nearest volcano:
Rabaul (Tavurvur) (94 km / 58 mi)
Nearby towns and cities:85 km (53 mi) S of Kokopo (pop: 26,300)
103 km (64 mi) S of Rabaul (pop: 8,100)
Primary data source:
USGS
Estimated released energy: 2 x 10
15 joules (554 gigawatt hours, equivalent to 4.8 x 10
5 tons of TNT or 29.8 atomic bombs!) [
learn more]
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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.
| Time | Mag. / Depth | Location | Source |
| Thu, 1 Jan 00:00 UTC | M | | |
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.
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Aftershocks of the 7.0 quake: New Britain Region, Papua New Guinea, 26 Jul 1971 02h25
Show info about this
Based on its magnitude, the fault that was active during the quake ruptured along a surface of approx. 1000 km
2 (=386 sqare miles) as a first-order estimate. The length of the rupture zone thus was probably around 55 km (34 mi).
Aftershocks typically occur during the weeks, months or even a year 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).
26 Jul 1973 10:55 UTC
| M 4.6 | 75 km (46.6 mi) depth
| 114 km (71 mi) distance
| USGS | Details24 Jul 1973 11:18 UTC
| M 0.0 | 70 km (43.5 mi) depth
| 128 km (79 mi) distance
| USGS | Details23 Jul 1973 14:16 UTC
| M 0.0 | 43 km (26.7 mi) depth
| 77 km (48 mi) distance
| USGS | Details18 Jul 1973 02:01 UTC
| M 4.6 | 56 km (34.8 mi) depth
| 109 km (68 mi) distance
| USGS | Details05 Jul 1973 19:24 UTC
| M 5.2 | 150 km (93.2 mi) depth
| 70 km (44 mi) distance
| USGS | Details03 Jul 1973 17:58 UTC
| M 4.8 | 27 km (16.8 mi) depth
| 117 km (73 mi) distance
| USGS | Details29 Jun 1973 13:48 UTC
| M 5.4 | 99 km (61.5 mi) depth
| 108 km (67 mi) distance
| USGS | Details06 Jun 1973 13:19 UTC
| M 4.8 | 36 km (22.4 mi) depth
| 127 km (79 mi) distance
| USGS | Details04 Jun 1973 13:02 UTC
| M 4.7 | 77 km (47.8 mi) depth
| 137 km (85 mi) distance
| USGS | Details18 May 1973 13:20 UTC
| M 5.8 | 34 km (21.1 mi) depth
| 133 km (83 mi) distance
| USGS | Details12 May 1973 22:46 UTC
| M 4.8 | 44 km (27.3 mi) depth
| 44 km (27 mi) distance
| USGS | Details12 May 1973 14:05 UTC
| M 5.6 | 14 km (8.7 mi) depth
| 133 km (83 mi) distance
| USGS | Details06 May 1973 19:02 UTC
| M 4.5 | 44 km (27.3 mi) depth
| 109 km (68 mi) distance
| USGS | Details02 May 1973 18:45 UTC
| M 0.0 | 44 km (27.3 mi) depth
| 130 km (81 mi) distance
| USGS | Details01 May 1973 07:37 UTC
| M 4.6 | 13 km (8.1 mi) depth
| 135 km (84 mi) distance
| USGS | Details25 Apr 1973 16:28 UTC
| M 0.0 | 33 km (20.5 mi) depth
| 78 km (49 mi) distance
| USGS | DetailsShow all
23 Apr 1973 08:51 UTC
| M 4.1 | 274 km (170.3 mi) depth
| 133 km (82 mi) distance
| USGS | Details18 Apr 1973 08:42 UTC
| M 0.0 | 63 km (39.1 mi) depth
| 57 km (35 mi) distance
| USGS | Details13 Apr 1973 15:12 UTC
| M 4.8 | 33 km (20.5 mi) depth
| 117 km (73 mi) distance
| USGS | Details07 Apr 1973 05:08 UTC
| M 4.4 | 78 km (48.5 mi) depth
| 93 km (58 mi) distance
| USGS | Details22 Mar 1973 21:13 UTC
| M 4.9 | 18 km (11.2 mi) depth
| 118 km (73 mi) distance
| USGS | Details21 Mar 1973 08:42 UTC
| M 4.6 | 42 km (26.1 mi) depth
| 98 km (61 mi) distance
| USGS | Details19 Mar 1973 17:23 UTC
| M 0.0 | 34 km (21.1 mi) depth
| 114 km (71 mi) distance
| USGS | Details16 Mar 1973 11:57 UTC
| M 4.6 | 49 km (30.4 mi) depth
| 135 km (84 mi) distance
| USGS | Details14 Mar 1973 11:25 UTC
| M 5.8 | 64 km (39.8 mi) depth
| 26 km (16 mi) distance
| USGS | Details12 Mar 1973 14:45 UTC
| M 4.7 | 53 km (32.9 mi) depth
| 136 km (85 mi) distance
| USGS | Details09 Mar 1973 15:50 UTC
| M 4.3 | 96 km (59.7 mi) depth
| 111 km (69 mi) distance
| USGS | Details08 Mar 1973 16:13 UTC
| M 0.0 | 51 km (31.7 mi) depth
| 116 km (72 mi) distance
| USGS | Details06 Mar 1973 20:13 UTC
| M 0.0 | 51 km (31.7 mi) depth
| 45 km (28 mi) distance
| USGS | Details06 Mar 1973 15:51 UTC
| M 5.1 | 28 km (17.4 mi) depth
| 91 km (57 mi) distance
| USGS | Details28 Feb 1973 07:07 UTC
| M 5.4 | 25 km (15.5 mi) depth
| 101 km (63 mi) distance
| USGS | Details28 Feb 1973 06:28 UTC
| M 0.0 | 45 km (28 mi) depth
| 106 km (66 mi) distance
| USGS | Details23 Feb 1973 18:02 UTC
| M 4.9 | 139 km (86.4 mi) depth
| 81 km (50 mi) distance
| USGS | Details22 Feb 1973 16:22 UTC
| M 5.3 | 154 km (95.7 mi) depth
| 75 km (46 mi) distance
| USGS | Details21 Feb 1973 12:14 UTC
| M 5.3 | 90 km (55.9 mi) depth
| 87 km (54 mi) distance
| USGS | Details15 Feb 1973 13:36 UTC
| M 0.0 | 70 km (43.5 mi) depth
| 106 km (66 mi) distance
| USGS | Details08 Feb 1973 10:50 UTC
| M 4.5 | 33 km (20.5 mi) depth
| 128 km (80 mi) distance
| USGS | Details24 Jan 1973 12:18 UTC
| M 5.0 | 55 km (34.2 mi) depth
| 77 km (48 mi) distance
| USGS | Details21 Jan 1973 12:19 UTC
| M 4.6 | 46 km (28.6 mi) depth
| 124 km (77 mi) distance
| USGS | Details16 Jan 1973 18:09 UTC
| M 5.3 | 50 km (31.1 mi) depth
| 132 km (82 mi) distance
| USGS | Details14 Jan 1973 17:07 UTC
| M 4.5 | 157 km (97.6 mi) depth
| 85 km (53 mi) distance
| USGS | Details07 Jan 1973 15:30 UTC
| M 4.8 | 33 km (20.5 mi) depth
| 136 km (84 mi) distance
| USGS | Details17 Dec 1972 18:00 UTC
| M 5.7 | 40.9 km (25.4 mi) depth
| 119 km (74 mi) distance
| USGS | Details07 Oct 1972 12:34 UTC
| M 5.7 | 85 km (52.8 mi) depth
| 109 km (68 mi) distance
| USGS | Details03 Sep 1972 06:31 UTC
| M 6.2 | 25 km (15.5 mi) depth
| 132 km (82 mi) distance
| USGS | Strong mag. 6.2 earthquake - New Britain Region, Papua New Guinea on Sunday, 3 September 197221 Aug 1972 08:47 UTC
| M 5.8 | 37.5 km (23.3 mi) depth
| 111 km (69 mi) distance
| USGS | Details18 Aug 1972 00:23 UTC
| M 6.1 | 20 km (12.4 mi) depth
| 118 km (73 mi) distance
| USGS | Strong mag. 6.1 earthquake - New Britain Region, Papua New Guinea on Friday, 18 August 197217 Aug 1972 23:44 UTC
| M 7.5 | 20 km (12.4 mi) depth
| 126 km (79 mi) distance
| USGS | Major mag. 7.5 earthquake - New Britain Region, Papua New Guinea on Thursday, 17 August 197230 Jul 1972 20:13 UTC
| M 6.0 | 10 km (6.2 mi) depth
| 56 km (35 mi) distance
| USGS | Strong mag. 6.0 earthquake - New Britain Region, Papua New Guinea on Sunday, 30 July 197230 Jul 1972 17:40 UTC
| M 6.0 | 10 km (6.2 mi) depth
| 64 km (40 mi) distance
| USGS | Strong mag. 6.0 earthquake - New Britain Region, Papua New Guinea on Sunday, 30 July 197205 May 1972 23:16 UTC
| M 6.6 | 30 km (18.6 mi) depth
| 103 km (64 mi) distance
| USGS | Strong mag. 6.6 earthquake - New Britain Region, Papua New Guinea on Friday, 5 May 197217 Feb 1972 00:39 UTC
| M 5.6 | 35 km (21.7 mi) depth
| 119 km (74 mi) distance
| USGS | Details03 Feb 1972 08:36 UTC
| M 5.6 | 160 km (99.4 mi) depth
| 77 km (48 mi) distance
| USGS | Details06 Jan 1972 00:30 UTC
| M 6.1 | 162.3 km (100.8 mi) depth
| 76 km (47 mi) distance
| USGS | Strong mag. 6.1 earthquake - New Britain Region, Papua New Guinea on Thursday, 6 January 197230 Dec 1971 15:39 UTC
| M 6.0 | 111.3 km (69.2 mi) depth
| 64 km (40 mi) distance
| USGS | Strong mag. 6.0 earthquake - New Britain Region, Papua New Guinea on Thursday, 30 December 197101 Oct 1971 05:16 UTC
| M 6.0 | 20 km (12.4 mi) depth
| 111 km (69 mi) distance
| USGS | Strong mag. 6.0 earthquake - New Britain Region, Papua New Guinea on Friday, 1 October 197110 Aug 1971 04:23 UTC
| M 5.7 | 35 km (21.7 mi) depth
| 69 km (43 mi) distance
| USGS | Details09 Aug 1971 20:01 UTC
| M 6.3 | 35 km (21.7 mi) depth
| 61 km (38 mi) distance
| USGS | Strong mag. 6.3 earthquake - New Britain Region, Papua New Guinea on Monday, 9 August 197102 Aug 1971 00:19 UTC
| M 5.9 | 11 km (6.8 mi) depth
| 52 km (33 mi) distance
| USGS | Details30 Jul 1971 13:24 UTC
| M 5.7 | 40 km (24.9 mi) depth
| 134 km (83 mi) distance
| USGS | Details30 Jul 1971 06:18 UTC
| M 5.8 | 55 km (34.2 mi) depth
| 94 km (59 mi) distance
| USGS | Details28 Jul 1971 10:17 UTC
| M 5.8 | 50 km (31.1 mi) depth
| 56 km (35 mi) distance
| USGS | Details28 Jul 1971 01:10 UTC
| M 6.5 | 24.5 km (15.2 mi) depth
| 64 km (40 mi) distance
| USGS | Strong mag. 6.5 earthquake - New Britain Region, Papua New Guinea on Wednesday, 28 July 197127 Jul 1971 20:47 UTC
| M 6.6 | 40 km (24.9 mi) depth
| 69 km (43 mi) distance
| USGS | Strong mag. 6.6 earthquake - New Britain Region, Papua New Guinea on Tuesday, 27 July 197127 Jul 1971 18:08 UTC
| M 5.6 | 40 km (24.9 mi) depth
| 105 km (65 mi) distance
| USGS | Details27 Jul 1971 07:35 UTC
| M 5.8 | 40 km (24.9 mi) depth
| 108 km (67 mi) distance
| USGS | Details27 Jul 1971 00:22 UTC
| M 5.7 | 40 km (24.9 mi) depth
| 26 km (16 mi) distance
| USGS | Details26 Jul 1971 19:15 UTC
| M 6.0 | 40 km (24.9 mi) depth
| 131 km (82 mi) distance
| USGS | Strong mag. 6.0 earthquake - New Britain Region, Papua New Guinea on Monday, 26 July 197126 Jul 1971 17:50 UTC
| M 5.9 | 40 km (24.9 mi) depth
| 89 km (55 mi) distance
| USGS | Details26 Jul 1971 16:45 UTC
| M 5.8 | 40 km (24.9 mi) depth
| 129 km (80 mi) distance
| USGS | Details26 Jul 1971 15:35 UTC
| M 6.3 | 40 km (24.9 mi) depth
| 114 km (71 mi) distance
| USGS | Strong mag. 6.3 earthquake - New Britain Region, Papua New Guinea on Monday, 26 July 197126 Jul 1971 12:05 UTC
| M 5.8 | 40 km (24.9 mi) depth
| 84 km (52 mi) distance
| USGS | Details26 Jul 1971 10:50 UTC
| M 5.5 | 40 km (24.9 mi) depth
| 110 km (68 mi) distance
| USGS | Details26 Jul 1971 09:37 UTC
| M 5.9 | 26 km (16.2 mi) depth
| 116 km (72 mi) distance
| USGS | Details26 Jul 1971 06:59 UTC
| M 6.1 | 40 km (24.9 mi) depth
| 52 km (32 mi) distance
| USGS | Strong mag. 6.1 earthquake - New Britain Region, Papua New Guinea on Monday, 26 July 197126 Jul 1971 04:19 UTC
| M 6.0 | 40 km (24.9 mi) depth
| 69 km (43 mi) distance
| USGS | Strong mag. 6.0 earthquake - New Britain Region, Papua New Guinea on Monday, 26 July 1971
Map of aftershocks
Significant earthquakes in the same area since 1900
Major mag. 7.0 earthquake - New Britain Region, Papua New Guinea on Monday, 26 July 1971
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