|Historical Energy Release Component (ERC) data for western Texas displayed from 1 January 2000 through 15 November 2012. Displayed is the average ERC value ("Average ERC" in black), comprised of the mean ERC calculated from Lubbock, Amarillo, Midland, San Angelo and Wichita Falls combined. Also shown is the historical maximum ("Max ERC" in red), minimum ("Min ERC" in green) and median ("Avg DP_50" in purple) ERC value for each date. Click on the above graph for a larger image. Current ERC graphs for all the regions of Texas can be found FOUND HERE.