It's like taking a hammer to a champagne bottle, geologist says
                                
                                
                                    (Newser) -
                                    Molten lava, rocks, and gas went flying through the air on Hawaii's Kilauea volcano after an explosion was caused by the partial collapse of a crater wall. The collapse triggered a small explosion, spreading lava and debris around the rim of Kilauea's Halemaumau Crater, the US Geological Survey'...