About this iReport
  • Not verified by CNN

  • Click to view MarvelHead71's profile
    Posted August 19, 2014 by
    Yukon, Oklahoma

    More from MarvelHead71

    4.2 Earthquake - Oklahoma

    At approximiately 7:41a CST a 4.2 (source USGS) struck just south of the town of Guthrie, OK in southern Logan County. At the time of this iReport there were no immediate reports of damage. However, the quake was felt as far south as the southern sides of Oklahoma City, (approx. 23-25 miles away from the epicenter).

    The 4.2 quake comes on the heel of 2 other smaller quakes in northern Oklahoma on Monday (2.5 and 2.6 respectively). Although quakes of this magnitude are rare for this portion of the country, Oklahoma has seen a significant increase in quake activity over the past couple of years. Almost 3,000 total in 2013 per the US Geological Survey (USGS). The theories for the sudden and alarming rise in quakes in Oklahoma range from the activity known as 'Fracking' or hydraulic fracturing, which is the process of extracting natural gas from shale rock layers deep within the earth. To what some call the 'awakening' of the New Madrid Seismic Zone, also called the New Madrid Fault Line.

    The New Madrid Seismic Zone is a is a major seismic zone and a prolific source of intraplate earthquakes (earthquakes within a tectonic plate) in the southern and midwestern United States, stretching to the southwest from New Madrid, Missouri.

    While none of these theories have been proven as the cause of the increase in quake activity, the fact remains that the residents of Oklahoma where these quakes have occurred have become increasingly concerned as the number of larger quakes (3.0 and higher) continue to occur with seemingly increased frequency.

    *Photo Courtesy of USGS.GOV
    Add your Story Add your Story