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Moderate mag. 5.5 earthquake - Bering Sea, 20 mi southeast of Tag s Island, Aleutians West, Alaska, USA, on Tuesday, 6 June 1972 at 02:19 (GMT)
Moderate magnitude 5.5 earthquake at 48 km depth
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Date & time: 6 Jun 1972 02:19:42 UTC
Magnitude: 5.5Depth: 47.5 km
Epicenter latitude / longitude: 51.341°N / 178.26°W
(
Bering Sea,
Alaska,
United States)
Nearest volcano:
Tanaga (61 km / 38 mi)
Nearby towns and cities:127 km (79 mi) WSW of Adak (pop: 332) -->
See nearby quakes!295 km (183 mi) WSW of Atka (pop: 64) -->
See nearby quakes!Primary data source:
USGS (United States Geological Survey)
Estimated released energy: 1.1 x 10
13 joules (3.12 gigawatt hours, equivalent to 2682 tons of TNT or 0.2 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 |
| 5.5 | 48 km | Andreanof Islands, Aleutian Islands, Alaska (USA) | 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. 32 km
2 (=12 sqare miles) as a first-order estimate. The length of the rupture zone thus was probably around 10 km (6 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).
Earlier earthquakes in the same area
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