We recorded more than 55,000 earthquakes in Alaska last year. We would give you an exact figure, but we're still counting.
Since the Nov. 30 Anchorage earthquake, we’ve fielded far more questions about the aftershock sequence than we have about the magnitude 7.0 mainshock that started them.
Here is a cross-section through Friday’s earthquake and subsequent aftershocks. The mainshock symbol marks where the M7 earthquake began.