Examination of the fault lines indicated a lateral motion moving in a northeasterly direction .
Aftershock data has revealed at least one of the faults extends from the surface to a depth of 8 to 10 kilometers beneath the city of Managua .
Examination of the fault lines indicated a lateral motion moving in a northeasterly direction and aftershock data has revealed at least one of the faults extends from the surface to a depth of 8 to 10 kilometers beneath the city of Managua .