Earth Imaging Journal: Remote Sensing, Satellite Images, Satellite Imagery
Breaking News
U.S. Air Force’s First GPS III Satellite Receives Commands From Next-Generation OCX Ground Control Segment
DENVER – The first advanced GPS III satellite successfully...
Airbus Selected by ESA for Copernicus Data and Information Access Service (DIAS)
Brussels – Airbus has been selected by the European...
Map of the Month: Anholt-GfK Nation Brands Index Study, 2017
This year's Anholt-GfK Nation Brands IndexSM study finds that...
Manufacturer’s Edge CEO Tom Bugnitz Receives Cosmic Contributor Award
(Denver, CO) On December 6, Manufacturer’s Edge (ME) CEO...
Esri Business Partner, GEO Jobe, Announces Release of Admin Tools V 1.0.14 in the ArcGIS Marketplace
NASHVILLE, Tenn. - We're pleased to announce an important...

November 4, 2014
Subsidence in Southern Colorado Linked to Gas Production and Earthquakes

Reston, Va., Oct. 29, 2014—New radar observations show significant ground subsidence near the Colorado-New Mexico border in the area where a magnitude 5.3 earthquake struck in August 2011. The analysis supports the idea that earthquakes in this region may be triggered by waste-water disposal.

In a recent study published in the American Geophysical Union’s Journal of Geophysical Research, scientists from the U.S. Geological Survey used satellite radar observations (interferometric synthetic aperture radar, or InSAR) to show that there is significant vertical deformation, or ground subsidence, in the Raton Basin, likely caused by methane and water withdrawal from coal beds. Also, there is no evidence for shallow volcanic activity throughout the observation period.

Alternatively, the August, 2011, earthquake occurred close to several wastewater disposal wells during times when injection was occurring. Aspects of the earthquake rupture, including the location of slip, the style of faulting and the statistics of the 2011 earthquake aftershock sequence, suggest that the earthquake was likely caused by a slip on a naturally stressed fault that was triggered by the fluid disposal.

The InSAR analysis provides a new method of looking at earthquake location and dimensions, allowing USGS and other scientists to further explore relationships between fluid extraction and injection, induced seismicity, local geology and hydrological systems. The satellite data also provide a check on the seismological observations that are most commonly used to analyze induced seismicity, and allow scientists to explore deformation that does not produce seismic signals.

Comments are closed.