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A strong and shallow earthquake registered by the USGS as M6.3 hit Ascension Island region at 00:36 UTC on November 11, 2017. The agency is reporting a depth of 10 km (6.2 miles). EMSC is reporting M6.1 at a depth of 2 km (1.2 miles).
According to the USGS, the epicenter was located 423.4 km (263.1 miles) S of Georgetown (population 538), Saint Helena and 1 918.5 km (1 192 miles) SSW of Harper (population 32 661), Liberia.
There are no people living within 100 km (62 miles). Some 1 000 people are estimated to have felt weak shaking.
Tsunami is not expected.
USGS issued a green alert for shaking-related fatalities and economic losses. There is a low likelihood of casualties and damage.
Overall, the population in this region resides in structures that are a mix of vulnerable and earthquake resistant construction. The predominant vulnerable building types are mud wall without wood and informal (metal, timber, GI etc.) construction.
Estimated population exposure to earthquake shaking
Regional seismicity
Featured image credit: USGS