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Moderate mag. 5.2 earthquake - Bering Sea, 30 mi south of Tannaga Island, Aleutians West County, Alaska, USA, on Monday, 27 October 2014 at 09:54 (GMT)
Moderate magnitude 5.2 earthquake at 46 km depth
27 Oct 12:10 UTC: First to report: GFZ after 2 hours and 16 minutes.
Hypocenter depth recalculated from 10.0 to 46.0 km.
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Date & time: 27 Oct 2014 09:54:04 UTC
Magnitude: 5.2Depth: 46.0 km
Epicenter latitude / longitude: 51.37°N / 177.81°W
(
Bering Sea,
United States)
Nearest volcano:
Takawangha (63 km / 39 mi)
Nearby towns and cities:99 km (61 mi) SW of Adak (pop: 332) -->
See nearby quakes!265 km (165 mi) WSW of Atka (pop: 64) -->
See nearby quakes!Primary data source:
GFZ (German Research Centre for Geosciences)
Estimated released energy: 4 x 10
12 joules (1.11 gigawatt hours, equivalent to 951 tons of TNT)
More info[show map]
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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.
| Magnitude | Depth | Location | Source |
| M 5.2 | 46 km | Andreanof Islands, Aleutian Islands | GFZ |
| M 5.1 | 47 km | 52km SSE of Tanaga Volcano, Alaska | USGS |
| M 5.1 | 45 km | ANDREANOF ISLANDS, ALEUTIAN IS. | EMSC |
![shake map]()
(shakemap: 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. 16 km
2 (=6 sqare miles) as a first-order estimate. The length of the rupture zone thus was probably around 7 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).
25 Nov 2014 04:19 UTC
| M 2.6 | 55.2 km (34.3 mi) depth
| 12 km (8 mi) distance
| USGS | Details
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