On March 17 , 2011 , CNN reported that the WC-135W had been deployed from Offutt Air Force Base in Nebraska to Eielson Air Force Base in Alaska . From there it assisted in detecting radioactive materials in the atmosphere around Japan , monitoring radioactivity released from the Fukushima I Nuclear Power Plant caused by the magnitude 9.0 earthquake and subsequent tsunami of March 11 , 2011
magnitude 9.0 earthquake and subsequent tsunami
2011 Tōhoku earthquake and tsunami
Boeing WC-135 Constant Phoenix