Atmosphere Above Japan Heated Rapidly Before M9 Earthquake
New satellite data shows that the atmosphere above Japan heated rapidly in the days before the March earthquake.
The [researchers] say that before the M9 earthquake, the total electron content of the ionosphere increased dramatically over the epicentre, reaching a maximum three days before the quake struck. At the same time, satellite observations showed a big increase in infrared emissions from above the epicentre, which peaked in the hours before the quake. In other words, the atmosphere was heating up.