Your feedback is important to us!
We invite all our readers to share with us their views and comments about this article.
Disclaimer: Comments submitted by third parties on this site are the sole responsibility of the individual(s) whose content is submitted. The Daily Star accepts no responsibility for the content of comment(s), including, without limitation, any error, omission or inaccuracy therein. Please note that your email address will NOT appear on the site.
Alert: If you are facing problems with posting comments, please note that you must verify your email with Disqus prior to posting a comment. follow this link to make sure your account meets the requirements. (http://bit.ly/vDisqus)
In recent years a consensus in the scientific community has emerged that, while hydraulic fracturing ("fracking") rarely causes earthquakes large enough to be felt, the disposal of waste fluids produced in fracking operations in deep injection wells can, in some cases, induce earthquakes on nearby faults.These earthquakes, most of which were at least locally felt, have raised concerns about possible future damaging earthquakes.Until recently, there was no reason to expect that an induced earthquake of a given magnitude will generate shaking that is different on average from a natural earthquake of the same magnitude.Considering DYFI data from the largest earthquakes in the central and eastern U.S. that are believed to have been induced, my research indicates that, on average, an induced magnitude 5.0 earthquake generates shaking comparable to that from a natural earthquake with a magnitude of 4.2 .How could shaking from injection-induced earthquakes be so different from natural earthquakes with the same magnitude? DYFI data reveals that induced earthquakes are different beasts, generating less shaking than natural events, at least at distances greater than 10 kilometers from the earthquake.
FOLLOW THIS ARTICLE