Moderate mag. 5.5 earthquake - Northern Mid-Atlantic Ridge on Wednesday, 31 August 2011
Depth: 10.0 km
Epicenter latitude / longitude: 43.589°N / 28.902°W (international territory)
Primary data source: USGS
Estimated released energy: 1.1 x 1013 joules (3.12 gigawatt hours, equivalent to 2682 tons of TNT or 0.2 atomic bombs!) [learn more]
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|
|Wed, 31 Aug 12:17 UTC||M 5.5 / 10 km||Northern Mid-Atlantic Ridge||USGS|
User reports for this quake
User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
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Aftershocks of the 5.5 quake: Northern Mid-Atlantic Ridge, 31 Aug 2011 12:17
More infoRecorded aftershocks, latest first (1 quakes):
- 22 Oct 2011 01:48 UTC| M 4.7 |10 km (6.2 mi) depth|2 km (1 mi) distance| USGS | Details