It is hot, or at least very warm. But, as you know it cannot be too much higher than the boiling point of water, even if it contains minerals and other chemicals. The reason it's is so blue in the center is that the middle is deeper than the parameters. Parameter is where the water has less motion, therefore it has more time to deposit it's minerals.
"Got tight last night on absinthe and did knife tricks. Great success shooting the knife into the piano. The woodworms are so bad and eat hell out of all furniture that you can always claim the woodworms did it."