6.1 magnitude earthquake strikes near planet’s southern pole

March 19, 2013 ANTARTICAA 6.1 magnitude struck the South Sandwich regions of the southern pole near Antarctica. The epicenter of the earthquake was 121 km (75 miles) E of Bristol Island, Antarctica. The depth of the earthquake was 31.3 km (19.4 miles). This is the fourth major earthquake to strike the planet in the month of March. Bristol Island is composed of several active volcanoes with eruptions reported in 1823, 1935, 1936, 1950 and 1956. The planet remains under elevated risk for a major earthquake through March 23. Heightened volcanic activity has been recorded at many of the world’s volcanoes over the last five days.
Costa Rica shaken by double tremors: Two earthquakes once again rocked Costa Rica in the early morning hours on Saturday. The first, with a magnitude of 3.8 on the Richter scale struck at 2:50am, while the second of 4.2 magnitude struck at 3:52am, according to the National Seismological Network. The quakes struck at depths of 60 kilometers and 91.6 kilometers, respectively. The quakes were once again caused by the subduction of the Cocos plate. –Inside Costa Rica
 
 

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