Induced Earthquakes in the Central and Eastern States
September 26, 2013 | USGS
"The number of earthquakes has increased dramatically over the past few years within the central and eastern United States. More than 300 earthquakes above a magnitude 3.0 occurred in the three years from 2010-2012, compared with an average rate of 21 events per year observed from 1967-2000. This increase in earthquakes prompts two important questions: Are they natural, or man-made?" Quoted from the USGS press release.
Oklahoma Earthquake Swarm Continues
October 23, 2013 | USGS
"Since January 2009, more than 200 magnitude 3.0 or greater earthquakes have rattled Central Oklahoma, marking a significant rise in the frequency of these seismic events. [...] The analysis suggests that a contributing factor to the increase in earthquakes triggers may be from activities such as wastewater disposal." Quoted from the USGS press release.
Population Rise and Earthquake Fatalities
February 24, 2013 | USGS
"Predicted population increases in this century can be expected to translate into more people dying from earthquakes. There will be more individual earthquakes with very large death tolls as well as more people dying during earthquakes than ever before, according to a newly published study led by U.S. Geological Survey engineering geologist Thomas L. Holzer." Quoted from the USGS announcement.