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15 November 2016
New maps reveal safe locations for wastewater injection
Geophysicists have compiled the most detailed maps yet of the geologic forces controlling the locations, types and magnitudes of earthquakes in Texas and Oklahoma. These new “stress maps” provide insight into the nature of the faults associated with recent temblors, many of which appear to have been triggered by the injection of wastewater deep underground.
25 October 2016
Wastewater disposal likely induced February 2016 magnitude 5.1 Oklahoma earthquake
Distant wastewater disposal wells likely induced the third largest earthquake in recent Oklahoma record, the February 13, 2016, magnitude 5.1 event roughly 32 kilometers (nearly 20 miles) northwest of Fairview, Oklahoma, according to a new study.
13 April 2016
2012 Texas earthquakes may have been man-made
Analysis of a series of earthquakes in East Texas in 2012 has found it plausible that the earthquakes were caused by wastewater injection. Previous studies relied on the timing and proximity of wastewater injection to earthquakes to decide if earthquakes were induced by human activity. This was the first to simulate the mechanics of an earthquake generated by water injection for this site.
GeoSpace is a blog on Earth and space science, managed by AGU’s Public Information staff. The blog features posts by AGU writers and guest contributors on all sorts of relevant science topics, but with a focus on new research and geo and space sciences-related stories that are currently in the news.