 Complete the following phrase:  WNAC-TV ended its 6 pm news broadcast with a bulletin reporting that Great Blue Hill in Milton had erupted and was spraying lava and ash onto nearby homes. The report showed footage of lava flowing down a hillside taken from the March 27 eruption of Mount St. Helens and edited remarks from President Jimmy Carter who expressed concern and Governor Edward J. King who called the situation serious. According to reporter Jan Harrison, the disaster had been caused by a geological chain reaction set off by the 