The Aleutian Chain was jolted by a 6.4 magnitude earthquake Wednesday afternoon that shook Adak and Atka.

The quake occurred at 3:39 pm. It was situated about 70 miles southwest of Adak about 21 minles south of Tanaga Volcano.

The shaker was generated about 6.2 miles beneath the seafloor.

An aftershock took place in the same location on Wednesday night. That quake measured 4.5. It occurred at 11:16 pm. It was generated much deeper at 22.2 miles down.

Neither quake produced any type of tsunami activity.

The area that the earthquakes occurred are sparsly populated, no damage was reported.