The water involved in fracking may enter the ground cold, but, it doesn't take long to heat up water when it's under pressure. Pressure creates
The largest earthquake known to be caused from injection, the process used at the end of fracking, was a 5.0M in Colorado. Arkansas experienced a
quake of 4.7M this year. There is no proof fracking causes major earthquakes. But injection has proven to cause earthquakes. Injection also causes
quakes in the geo-thermal industry. In places like Iceland.
"In 1961, a 12,000-foot well was drilled at the Rocky Mountain Arsenal, northeast of Denver, for disposing of waste fluids from Arsenal operations.
Injection was commenced March 1962, and an unusual series of earthquakes erupted in the area shortly after.
It was 32 minutes after 4 a.m. on April 24 when the first shock of the Denver series was recorded at the Cecil H. Green Geophysical Observatory at
Bergen Park, Colorado. Rated magnitude 1.5, it was not strong enough to be felt by area residents. By the end of December 1962, 190 earthquakes had
occurred. Several were felt, but none caused damage until the window breaker that surprised Dupont and Irondale on the night of December 4. The shock
shuffled furniture around in homes, and left electrical wall outlets hanging by their wires at Irondale.
Over 1,300 earthquakes were recorded at Bergen Park between January 1963 and August 9, 1967. Three shocks in 1965 -- February 16, September 29, and
November 20 -- caused intensity VI damage in Commerce City and environs.
The Denver series was forgotten, however temporarily, in October 1966, when a southeast Colorado tremor rocked a 15,000 square-mile area of that State
and bordering New Mexico. Minor damage, in the form of broken windows and dishes and cracked walls and plaster, occurred at Aguilar, Segundo,
Trinchera, and Trinidad.
Another strong shock rumbled through the Denver area on November 14, 1966, causing some damage at Commerce City and Eastlake. Slighter rumblings
(below magnitude 3.0) occurred throughout the remainder of 1966, and through the first week of April 1967.
Then, on April 10, the largest since the series began in 1962 occurred; 118 windowpanes were broken in buildings at the Rocky Mountain Arsenal, a
crack in an asphalt parking lot was noted in the Derby area, and schools were dismissed in Boulder, where walls sustained cracks. Legislators quickly
moved from beneath chandeliers in the Denver Capitol Building, fearing they might fall. The Colorado School of Mines rated this shock magnitude 5.0.
Arkansas has experienced a 4.7M. Scott Ausbrook reassessed the size of the fault and realized it was twice as big as he first thought. His revised
estimate had the top end maximum of 6.0M if the full fault ruptured. But there's a problem with this. The fault is even longer than his second guess.
The swarm in Quitman, which continues as we speak. There was just one posted. Wow, they posted both of them. Usually the miss some of the smaller
ones. It's not only aftershocks from the big ones they miss. They also miss the ones around 1M when it comes to Arkansas. And there's times they never
posted quakes I observed in real time.
Anyway. If the fault is larger by one third, then the maximum magnitude will increase. My guess, the maxium could be a 6.4M.
To be later downgraded by the USGS to a 6.2M
Check the area around the recent Colorado quakes. They are doing some kind of energy drilling. Along with the coal mines.
Texas has 53 000 injection wells for disposal. That number won't leave my head. On top of the ground, they are suffering the worst drought in memory.
Yet, they are pumping bazillions of liters of water underground. Does this rack your brains as much as it does mine. I can digest the scale, it's
trying to express it to you all that's the problem. Doesn't the irony scream of the absurd nature of our industrialized existence?
Think about it.
MAP 2.1 2011/10/15 11:26:15 35.364 -92.284 5.0 6 km ( 4 mi) WSW of Quitman, AR
MAP 2.3 2011/10/15 10:26:29 35.363 -92.278 4.7 6 km ( 4 mi) WSW of Quitman, AR
edit on 15-10-2011 by Robin Marks because: (no reason given)