NEW : Front of lava flow does n't move , ` ` but there 's lots of activity behind it , '' official report . ' : He says residents ready to evacuate are ` ` very upset , scared , frustrated '' NEW : A geologist says ` ` the volcano is still active ; '' things could change at any moment . The lack of recent movement changes that equation , though the main flow -- which is about 20 yards wide at its tip , expanding to 100 yards farther back -- is still within about 480 feet of that street . The lava flow on Hawaii 's Big Island began in June ; houses and roads are threatened .
NEW : Front of lava flow does n't move , ` ` but there 's lots of activity behind it , '' official report . ' : He says residents ready to evacuate are ` ` very upset , scared , frustrated '' NEW : A geologist says ` ` the volcano is still active ; '' things could change at any moment . The lava flow on Hawaii 's Big Island began in June ; houses and roads are threatened .