Mystery foam flows down street in Japan after earthquakes

A mysterious foam flowed down a street in Japan overnight after the southern region of the country was struck by two powerful earthquakes and numerous aftershocks.

Fukuoka is nearly two hours away from Kumamoto, where the strong earthquakes struck late Thursday and early Saturday. Residents in Fukuoka felt the earthquakes, and it is suspected but not confirmed that the mysterious foam is related to the seismic activity.