Two eastern Iowans escaped serious injury Saturday when a personal water craft exploded on the Mississippi River near Muscatine. A news release from the Iowa Department of Natural Resources says 42 year old Robert Baenziger of Blue Grass and his 9 year old daughter Emily were boarding the 2001 Polaris Wave Runner on the ramp at the Shady Creek Recreation area. The DNR says Robert Baenziger was starting the craft at the time of the explosion. The two received only minor injuries, the Wave Runner was destroyed. The cause of the explosion remains under investigation, but Conservation Officer Tom Campbell says “it is believed that gas vapors collected under the cowling of the Wave Runner and were ignited by a spark as the vessel was being started.”