Following up this article ..Temperature of reactor 2 keeps getting high
Since 11:00AM of 2/5/2012, the temperature of the container vessel has increased even more.
11:00AM : 68.6℃
4:00PM : 71.7℃ (+3.1℃)
Tepco is going to increase the amount of water to inject.
When it becomes over 80.0℃, they are supposed to warn the local governments.