The town of Clintonville, Illinois is being disturbed by mysterious subterranean explosions that still defy explanation.
Well, since the Fantastic Four haven't shown up, we can dismiss the Mole Man, but Red China is under a "coup watch" at the moment, so there is another possibility that we present here.
The "explanation" offered up by the EPA is that dry weather (due to AGW, of course!) is sucking ground water out of the granite strata, resulting in subsidence and thus tremblors and the "booms".
In a geologically-stable area like this, this is rather unlikely. Besides granite and the topsoil, the substrate areas in-between are mostly clay. Which is where most drying subsidence would take place (hence the locals' worry about potential suddenly-developing sinkholes).
A more likely, and worrisome, possibility is that the arm of the New Madrid fault zone which goes up under this area from the Missouri/Mississippi basin is beginning to shift. Coupled with the increasing frequency of tremors here in Ohio, there is a distinct possibility that the New Madrid fault zone may be "waking up" after an almost two-century-long period of quiescence.
If so, it must be noted that areas that were nearly uninhabited the last time are now heavily populated. And few of the buildings in those areas are earthquake resistant, because it was believed that they did not need to be so.
Laying in canned goods, flashlight batteries, first-aid gear- and ammunition- might be a prudent precaution in these areas.
1 comment:
The "explanation" offered up by the EPA is that dry weather (due to AGW, of course!) is sucking ground water out of the granite strata, resulting in subsidence and thus tremblors and the "booms".
In a geologically-stable area like this, this is rather unlikely. Besides granite and the topsoil, the substrate areas in-between are mostly clay. Which is where most drying subsidence would take place (hence the locals' worry about potential suddenly-developing sinkholes).
A more likely, and worrisome, possibility is that the arm of the New Madrid fault zone which goes up under this area from the Missouri/Mississippi basin is beginning to shift. Coupled with the increasing frequency of tremors here in Ohio, there is a distinct possibility that the New Madrid fault zone may be "waking up" after an almost two-century-long period of quiescence.
If so, it must be noted that areas that were nearly uninhabited the last time are now heavily populated. And few of the buildings in those areas are earthquake resistant, because it was believed that they did not need to be so.
Laying in canned goods, flashlight batteries, first-aid gear- and ammunition- might be a prudent precaution in these areas.
cheers
eon
Post a Comment