Indonesian authorities were on alert Friday for more eruptions from a remote island volcano that forced thousands to evacuate this week, as nearby residents began clearing debris after molten rocks rained down on their villages. Mount Ruang erupted almost half a dozen times in 24 hours beginning late Tuesday, stirring a spectacular mix of fiery orange lava, a towering ash column and volcanic lightning. While officials said Ruang had started to calm Friday, authorities maintained the highest alert level of a four-tiered system, which indicates high volcanic activity. According to AFP, Hundreds …