After this week’s spike in destructive Japanese earthquakes, which in addition to the two strongest tremors since 2011 has also unleashed several hundred smaller aftershocks and led to over 40 deaths, thousands injured, landslides, collapsed buildings and extensive damage, the most surprising aftereffect appeared yesterday on the streets of the southern Japanese city of Fukuoka which became blanketed in “mysterious foam” leaving residents baffled by the phenomenon which the authorities, busy with the disaster’s aftermath, found no time to explain.