Rubuta ci gaba don wannan sakin layi - A watan Afrilu 2013, ƙungiyar masana kimiyyar girgizar ƙasa a Cibiyar Fasaha ta Georgia ta sake nazarin bayanan daga girgizar ƙasa ta 2011 Virginia
ta amfani da software na gane tsari kuma sun sami daidaituwa tsakanin wucewar Hurricane Irene da ke kusa da kuma karuwar da ba zato ba tsammani a cikin adadin aftershocks.