.A chimney-like structure above a marine hydrothermal vent (an underwater geyser) at the crest of an ... - Krakatau Volcano, Indonesia 8월 이후 활동 감소- 2009년 10월Saturday 31st October 2009 - Pinatubo Volcano ... , PhilippinesSaturday 31st October 2009 - Mayon Volcano, Philippines 10월27일 05시 발생Monday 26th October 2009