"This is not the first time that the core has come to a halt or reversed direction, scientists believe that this process happens every 60 to 70 years. The two seismologists suggest that the last time this occurred was in the late 1960s through the early 1970s."
In before the panic:
"This is not the first time that the core has come to a halt or reversed direction, scientists believe that this process happens every 60 to 70 years. The two seismologists suggest that the last time this occurred was in the late 1960s through the early 1970s."