An anonymous reader writes Officials say molten lava from a Hawaii volcano has been flowing steadily in an area where residents have been warned they might have to evacuate their homes. Dozens of residents in the flow path have been told to complete all necessary preparations by Tuesday for a possible evacuation. From the article: "Janet Babb, a geologist and spokeswoman for the Hawaiian Volcano Observatory, said methane explosions also have been going off. She said decomposing vegetation produces methane gas that can travel subsurface beyond the lava front in different directions, accumulating in pockets that can ignite. She said it was a bit unnerving to hear all the blasts on Saturday."