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Moderate mag. 5.1 earthquake - Coral Sea, 506 km north of Port Vila, Shefa Province, Vanuatu, on Tuesday, 13 October 2009 at 00:21 (GMT)
Moderate magnitude 5.1 earthquake at 40 km depth
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Date & time: 13 Oct 2009 00:21:35 UTC
Magnitude: 5.1Depth: 39.7 km
Epicenter latitude / longitude: 13.504°S / 166.592°E
(
Coral Sea,
Vanuatu)
Nearest volcano:
Ureparapara (79 km / 49 mi)
Nearby towns and cities:112 km (69 mi) WNW of Sola (pop: 1,170) -->
See nearby quakes!179 km (111 mi) NNW of Port-Olry (pop: 1,950) -->
See nearby quakes!232 km (144 mi) NNW of Luganville (pop: 13,400) -->
See nearby quakes!298 km (185 mi) NNW of Norsup (pop: 3,000) -->
See nearby quakes!321 km (199 mi) SSE of Lata (Santa Cruz Islands, Solomon Islands) (pop: 553) -->
See nearby quakes!506 km (314 mi) NNW of Port Vila (pop: 35,900) -->
See nearby quakes!Primary data source:
USGS (United States Geological Survey)
Estimated released energy: 2.8 x 10
12 joules (783 megawatt hours, equivalent to 674 tons of TNT)
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 5.1 | 40 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. 13 km
2 (=5 sqare miles) as a first-order estimate. The length of the rupture zone thus was probably around 6 km (4 mi).
Aftershocks typically occur during the days and weeks 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).
03 Dec 2009 19:42 UTC
| M 4.5 | 35 km (21.7 mi) depth
| 19 km (12 mi) distance
| USGS | Details13 Oct 2009 00:30 UTC
| M 4.4 | 35 km (21.7 mi) depth
| 8 km (5 mi) distance
| USGS | Details
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