VOLCANO SINABUNG ON NORTH SUMATRA, INDONESIA ERUPTS November 3, 2013 lecture by Walter Hays Uploading date: November 06, 2013 More lectures at Disasters Supercourse - http://www.pitt.edu/~super1/collections/collection52.htm PPT original - http://www.pitt.edu/~super7/50011-51001/50861.ppt Walter Hays, Global Alliance for Disaster Reduction, Vienna, Virginia, USA
MOUNT SINABUNG: NOV. 3, 2013
UNTIL AUGUST, 2010, SINABUNG HAD BEEN INACTIVE FOR 400 YEARS The August eruption led to an evacuation of 30,000 people
SEPTEMBER 2013 ERUPTION An eruption in September 2013 also prompted an evacuation--- about 3,500 villagers lining within 3 km of the volcano.
OCTOBER 2013 ERUPTION Another eruption on October 24th also prompted an evacuation of about 3,500 villagers lining within 2-3 km of the volcano.
WHAT HAPPENED NOVEMBER 3RD The 8,530-foot-high mountain erupted early on Sunday, November 3rd, sending a vertical ash plume 7,000 feet into the air. This eruption prompted an evacuation of 1,500 people living within 3 km of the volcano.
INDONESIAN AUTHORITIES HAVE NOW INCREASED THE ALERT LEVEL
UNDERSTANDING EXPLOSIVE VOLCANOES
INDONESIA
INDONESIA’S VOLCANOES
VOLCANOES PART OF THE PACIFIC “RING OF FIRE,” INDONESIA HAS 127 ACTIVE VOLCANOES AS A RESULT OF COMPLEX SUBDUCTION OF THE INDO-AUSTRALIA AND EURASIATECTONIC PLATES
542 OF THE 1,500 ACTIVE VOLCANOES ARE LOCATED IN “RING OF FIRE”
VOLCANO HAZARDS CAN HAVE FAR REACHING IMPACTS VERTICAL PLUME (can affect jet aircraft) ASH AND TEPHRA LATERAL BLAST PYROCLASTIC CLOUDS, BURSTS, AND FLOWS
VOLCANO HAZARDS CAN HAVE FAR REACHING IMPACTS LAVA FLOWS LAHARS (can bury villages) EARTHQUAKES (related to movement of lava) “VOLCANIC WINTER” (causing famine and mass extinctions)
LATERAL BLAST PYROCLASTIC FLOWS FLYING DEBRIS VOLCANIC ASH LAVA FLOWS CAUSES OF RISK LATERAL BLAST PYROCLASTIC FLOWS FLYING DEBRIS VOLCANIC ERUPTIONS VOLCANIC ASH LAVA FLOWS CASE HISTORIES LAHARS TOXIC GASES
GOAL: VOLCANO DISASTER RESILIENCE VOLCANO HAZARDS PEOPLE & BLDGS. VULNERABILITY LOCATION VOLCANO RISK ACCEPTABLE RISK UNACCEPTABLE RISK RISK GOAL: VOLCANO DISASTER RESILIENCE INDONESIA’S COMMUNITIES DATA BASES AND INFORMATION PREPAREDNESS PROTECTION EARLY WARNING EMERGENCY RESPONSE RECOVERY and RECONSTRUCTION POLICY OPTIONS HAZARDS: GROUND SHAKING GROUND FAILURE SURFACE FAULTING TECTONIC DEFORMATION TSUNAMI RUN UP AFTERSHOCKS
TOWARDS DISASTER RISK REDUCTION FOR VOLCANOES RISK ASSESSMENT VULNERABILITY EXPOSURE EVENT POLICY ASSESSMENT COST BENEFIT CONSEQUENCES VOLCANIC ERUPTIONS EXPECTED LOSS POLICY ADOPTION
THE KEYS TO RESILIENCE: 1) KNOW THE ERUPTIVE HISTORY OF YOUR REGION’S VOLCANOES, 2) BE PREPARED 3) HAVE A WARNING SYSTEM 4) EVACUATE 5) LEARN FROM THE EXPERIENCE AND START OVER
MONITORING TECHNOLOGIES AND WARNING SYSTEMS ARE A VITAL PART OF BECOMING RESILIENT
AIR AND LAND MONITORING TECHNOLOGIES ARE VITAL .