Posted on September 27, 2014 by Bob Berwyn
U.S. Geological Survey researchers have linked a surge in earthquakes in southern Colorado and northern New Mexico with injection of fracking wastewater.
Scientists say it’s almost certain that massive injections of waste water caused recent quakes in the Raton Basin, including a 5.3 tremor in 2011
FRISCO — A surge in earthquakes in southern Colorado and New Mexico has almost certainly been caused by the injection of fracking wastewater deep into the ground, U.S. Geological Survey scientists reported last week.
The study details several lines of evidence directly linking the injection wells to the seismicity. The timing and location of the quakes is clearly linked with the the documented pattern of injected wastewater.
Detailed investigations of two seismic sequences (2001 and 2011) places them in proximity to high-volume, high-injection-rate wells, and both sequences occurred after a nearby increase in the rate of injection. A comparison between seismicity and wastewater injection in Colorado and New Mexico reveals similar patterns, suggesting seismicity is initiated shortly after an increase in injection rates.
For example, two injection wells near the epicenter of a 2011 5.3 earthquake had about 5 million cubic meters of wastewater injected just before the quake — more than seven times the amount injected at the Rocky Mountain Arsenal well that caused damaging earthquakes near Denver, Colorado, in the 1960s. The August 2011 M 5.3 event is the second-largest earthquake to date for which there is clear evidence that the earthquake sequence was induced by fluid injection.
Filed under: energy, Environment, fracking, gas drilling, oil drilling | Tagged: Colorado, earthquakes, energy, fracking, New Mexico, Raton Basin, wastewater injection | 2 Comments »
Posted on July 5, 2014 by Bob Berwyn
Oklahoma earthquake spike definitively linked with wastewater injection.
More monitoring and mitigation needed, scientists say
By Summit Voice
FRISCO — Just a small number of wastewater injection wells associated with fossil fuel exploitation can lead to a dramatic increase in earthquakes, U.S. Geological Survey scientists concluded in a new study focusing on the spike in Oklahoma earthquakes since 2009. Wastewater injection can trigger earthquakes up to 20 miles away, the researchers found, far beyond the three-mile radius commonly used as a measure for diagnosing induced earthquakes.
The dramatic increase in earthquakes in central Oklahoma since 2009 is likely attributable to subsurface wastewater injection at just a handful of disposal wells. Oklahoma earthquakes constitute nearly half of all central and eastern U.S. seismicity from 2008 to 2013, many occurring in areas of high-rate water disposal, said Cornell University geophysics professor Katie Keranen, who led the study. Continue reading
Filed under: energy, Environment, fracking, gas drilling, oil drilling, oil shale | Tagged: earthquakes, fracking, induced seismicity, USGS | 1 Comment »
Posted on May 28, 2014 by Bob Berwyn
Oklahoma earthquakes are on the increase.
Spike in tremors linked with injection of wastewater from fracking
By Summit Voice
FRISCO — Federal and state geologists say there’s an increased risk of a strong earthquake in Oklahoma after the overall rate of quakes increased by about 50 percent since late 2013.
After statistically analyzing the increased rate of earthquakes, the scientists said they’re fairly certain it’s not just natural variability — deep injection of waste water from fossil fuel exploitation is seen as a likely cause. Continue reading
Filed under: energy, Environment, fracking, gas drilling, oil drilling | Tagged: earthquakes, fracking, injection induced seismicity, Oklahoma, USGS | Leave a comment »
Posted on May 25, 2014 by Bob Berwyn
More coal mining equals more ozone
The U.S. is the second-largest producer of coal in the world, thanks in part to massive surface mines like this one in Wyoming. Photo courtesy BLM.
FRISCO — Federal officials may have failed to adequately assess the environmental impacts of more coal mining in northwestern Colorado, according a conservation group that’s suing the Bureau of Land Management over an expansion permit for the Deserado coal mine, located in Rio Blanco County in northwestern Colorado directly south of Dinosaur National Monument.
The mine fuels the 500-megawatt Bonanza power plant, located 30 miles west in Uintah County, Utah. The mine and the power plant are connecte by a dedicated electric train.
According to WildEarth Guardians, the BLM failed to address air quality impacts from fossil fuel combustion from the Bonanza facility. The group said regional air quality monitoring shows continued violations of ozone. According to the lawsuit, the mine expansion would mean that the Bonanza power plant would continue to operate for another 16 percent years — too long in the context of climate change. Continue reading
Filed under: energy, Environment, fracking, gas drilling, oil drilling | Tagged: Colorado, energy, Environment, fossil fuels, fracking | 3 Comments »
Posted on May 19, 2014 by Bob Berwyn
A NASA Earth Observatory map shows the dry Nevada deserts east of the Sierra Nevada Mountains.
BLM lease sales based on flawed, incomplete analysis, environmentalists say
FRISCO — Conservation advocates are formally challenging a Bureau of Land Management proposal to lease lands for natural gas exploitation in north-central Nevada based in part on the federal agency’s failure to require an in-depth environmental study.
The lease sale could open up more than 174,000 acres around Tonopah and Austin on 102 lease parcels. In filing the protest, the Center for Biological Diversity spelled out a laundry list of concerns about the BLM’s process, highlighting the fact that the agency’s evaluation of the proposed lease doesn’t come close to addressing key environmental concerns. Instead of developing more fossil fuel resources, the emphasis in Nevada should be on renewable energy resources like wind, solar and geothermal. Continue reading
Filed under: energy, Environment, fracking, gas drilling | Tagged: energy, Environment, fracking, Nevada | 2 Comments »
Posted on May 14, 2014 by Bob Berwyn
Oil and gas drilling roads and pads are spreading into remote backcountry areas of Colorado. bberwyn photo.
Cancer-causing chemicals escaping from fossil fuel facilities by the ton
FRISCO — Colorado communities looking to regulate the toxic and dangerous impacts of oil and gas drilling may not get any help from Gov. John Hickenlooper, but they may get some backup from a huge coalition of environmental groups that have petitioned the EPA for limits on oil and gas wells and associated equipment in population centers around the U.S.
As thousands of new wells are drilled across the U.S. every day, some studies suggest that at least 100,000 tons per year of hazardous air pollution from oil and gas well sites — including benzene, formaldehyde, and naphthalene — are escaping into the atmosphere. These pollutants have been linked to respiratory and neurological problems, birth defects, and cancer. Continue reading
Filed under: air quality, energy, Environment, fracking, gas drilling, oil drilling | Tagged: air pollution, Environment, fossil fuels, fracking, oil and gas drilling | 1 Comment »
Posted on May 12, 2014 by Bob Berwyn
The massive Deepwater Horizon oll spill spreads a sheen across a huge section of the Gulf of Mexico in May 2010. Photo courtesy NASA.
Findings show value of long-term post-spill monitoring
FRISCO — Methane-munching microbes in the Gulf of Mexico may have been overwhelmed by the sheer volume of gas released during the 84-day Deepwater Horizon oil disaster in 2010.
“Most of the gas injected into the Gulf was methane, a potent greenhouse gas that contributes to global climate change, so we were naturally concerned that this potent greenhouse gas could escape into the atmosphere,” said University of Georgia researcher Samantha Joye.” Many assumed that methane-oxidizing microbes would simply consume the methane efficiently, but our data suggests that this isn’t what happened.” Continue reading
Filed under: air quality, energy, Environment, gas drilling, oil drilling | Tagged: Deepwater horizon oil spill, Environment, Gulf of Mexico, methane, Samantha Joye, University of Georgia | Leave a comment »