In about 1982, we were driving the 60 miles back from Davenport, Iowa to our acreage east of Iowa City. It was about 8 p.m., and as soon as we left Davenport on I80, we saw a very bright white light on the horizon which grew larger and brighter as we approached our house. Turns out, a company truck had backed into a valve on a huge underground natural gas storage tank that was about 5 miles from our house, rupturing the valve and sparking the natural gas into a huge blowtorch flame that shot 100 feet into the air. There was nothing to do but let the whole thing burn itself out, which took about 6 very noisy weeks.