About fracking causing earthquakes, I highly doubt it, but it just burns me to know end that the greenies are trying to turn this into some sort of cheapo version of a 1970’s era Irwin Allen disaster movie. B-P
OK gets a lot of tornadoes and I’m sure that they would cause quite a bit of transmitted force to the earth when they touch down. I wonder how much and how deep this force could be? If the force delivered to the fault zone by a tornado is similar to the cracking force, perhaps we could use this as a model and determine if earthquake activity is triggered by a similar force.