MARCH 11-14, 2011 EXAMPLES OF NO PLACE TO GO AND NO ONE TO RESCUE. JAPAN AFTER 2:46 PM, MARCH 11. Walter Hays, Global Alliance for Disaster Reduction, University of North Carolina, USA. THE EARTHQUAKE IS NOW A M9.0 EVENT.
AFTER 2:46 PM, MARCH 11
Walter Hays, Global Alliance for Disaster Reduction, University of North Carolina, USA
The MEGA-earthquake, which struck at 2:46 pm on Friday, March 11th, would have caused a disaster….
…BUT JAPAN was well prepared to cope with it.
Japan was well prepared to cope with a tsunami, but ….
This tsunami was devastating, inun-dating towns, im-mobilizing airports and roads, destroy-ing buildings, and treating everything (e.g., people, cars) in its path as debris.
ON MARCH 11TH, MANY PEOPLE HAD TOO LITTLE WARNING AND NO PLACE TO GO
NATURAL HAZARDS FOR WHICH EVACUATION IS TYPICAL SURVIVING A TSUNAMI
GOAL: MOVE PEOPLE OUT OF HARM’S WAY
HIGH BENEFIT/COST FOR SAVING LIVES, BUT LOW BENEFIT/COST FOR PROTECTING PROPERTY
CAUSES OF DAMAGE SURVIVING A TSUNAMI
HIGH VELOCITY IMPACT OF INCOMING WAVES
INLAND DISTANCE OF WAVE RUNUP
VERTICAL HEIGHT OF WAVE RUNUP
INADEQUATE RESISTANCE OF BUILDINGS
INADEQUATE HORIZONTAL AND VERTICAL EVACUATION
PROXIMITY TO SOURCE OF TSUNAMI
THE ART AND SCIENCE OF KNOWING WHEN TO EVACUATE OF THE STORY.BEFORE A TSUNAMI WAVE ARRIVES AND WHERE TO GO CAN BE THE DIFFERENCE BETWEEN LIFE AND DEATH.
EVACUATION FOR A TSUNAMI IS COMPLICATED BY: OF THE STORY.1) THE SHORT TIME BETWEEN THE EARTHQUAKE AND THE TSUNAMI WAVE ARRIVAL, AND 2)DAMAGE AND LOSS OF FUNCTION TO BUILDINGS AND INFRASTRUCTURE CAUSED BY THE EARTHQUAKE AND ITS AFTERSHOCK SEQUENCE.
YOU CAN’T OUTRUN OR DIVERT OF THE STORY.10-M-HIGH, DEBRIS-LADEN, OCEAN WAVE THAT ARRIVES WITH A HIGH VELOCITY (E.G., 30+ KM/HR) AND MOVES RAPIDLY INLAND FOR 2-3 KM, OR MORE
ON MARCH 14TH, SOME SEARCH AND RESCUE TEAMS FOUND NO ONE TO RESCUE