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Strong mag. 6.1 earthquake - Coral Sea, 34 km west of Pentecost Island, Penama Province, Vanuatu, on Friday, 9 January 1976 at 23:54 (GMT)
Strong magnitude 6.1 earthquake at 168 km depth
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Date & time: 9 Jan 1976 23:54:35 UTC
Magnitude: 6.1Depth: 168.0 km
Epicenter latitude / longitude: 15.759°S / 167.868°E
(
Coral Sea,
Vanuatu)
Nearest volcano:
Aoba (40 km / 25 mi)
Nearby towns and cities:61 km (38 mi) NE of Norsup (pop: 3,000) -->
See nearby quakes!80 km (50 mi) ESE of Luganville (pop: 13,400) -->
See nearby quakes!117 km (73 mi) SE of Port-Olry (pop: 1,950) -->
See nearby quakes!212 km (132 mi) S of Sola (pop: 1,170) -->
See nearby quakes!225 km (140 mi) NNW of Port Vila (pop: 35,900) -->
See nearby quakes!447 km (278 mi) NNW of Isangel (pop: 1,440) -->
See nearby quakes!Primary data source:
USGS (United States Geological Survey)
Estimated released energy: 8.9 x 10
13 joules (24.8 gigawatt hours, equivalent to 21301 tons of TNT or 1.3 atomic bombs!)
More info[show map]
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Data for the same earthquake reported by different agencies
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| Magnitude | Depth | Location | Source |
| M 6.1 | 168 km | Vanuatu | USGS |
Note: for quakes of 2012 and earlier, our database often contains only records from USGS.
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Aftershocks
More info
Based on its magnitude, the fault that was active during the quake ruptured along a surface of approx. 126 km
2 (=49 sqare miles) as a first-order estimate. The length of the rupture zone thus was probably around 19 km (12 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).
17 Mar 1976 10:56 UTC
| M 5.0 | 180 km (111.8 mi) depth
| 25 km (16 mi) distance
| USGS | Details15 Jan 1976 04:41 UTC
| M 5.2 | 132 km (82 mi) depth
| 42 km (26 mi) distance
| USGS | Details
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