Lessons learned from past notable disasters australia part 2 cyclones
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LESSONS LEARNED FROM PAST NOTABLE DISASTERS AUSTRALIA PART 2: CYCLONES. Walter Hays, Global Alliance for Disaster Reduction, Vienna, Virginia, USA . AUSTRALIA. NATURAL HAZARDS THAT HAVE CAUSED DISASTERS IN AUSTRALIA. FLOODS. GOAL: PROTECT PEOPLE AND COMMUNITIES. CYCLONES. EARTHQUAKES.

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LESSONS LEARNED FROM PAST NOTABLE DISASTERS AUSTRALIA PART 2: CYCLONES

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Lessons learned from past notable disasters australia part 2 cyclones

LESSONS LEARNED FROM PAST NOTABLE DISASTERSAUSTRALIAPART 2: CYCLONES

Walter Hays, Global Alliance for Disaster Reduction, Vienna, Virginia, USA 


Australia

AUSTRALIA


Lessons learned from past notable disasters australia part 2 cyclones

NATURAL HAZARDS THAT HAVE CAUSED DISASTERS IN AUSTRALIA

FLOODS

GOAL: PROTECT PEOPLE AND COMMUNITIES

CYCLONES

EARTHQUAKES

HIGH BENEFIT/COST FROM BECOMING DISASTER NRESILIENT

WILDFIRES

ENVIRONMENTAL CHANGE

GLOBAL CLIMATE CHANGE


Natural phenomena that cause disasters

Natural Phenomena that Cause Disasters

Planet Earth’s atmospheric-hydrospheric-lithospheric interactions create situations favorable for CYCLONES


A disaster is

A DISASTER is ---

--- the set of failures that overwhelm the capability of a community torespond without external help  when three continuums: 1)  people, 2) community (i.e., a set of habitats, livelihoods, and social constructs), and 3) complex events (e.g., cyclones, floods,...) intersect at a point in space and time.


Lessons learned from past notable disasters australia part 2 cyclones

Disasters are caused by single- or multiple-event natural hazards that, (for various reasons), cause extreme levels of mortality, morbidity, homelessness, joblessness, economic losses, or environmental impacts.


Severe windstorm hazards

SEVERE WINDSTORM HAZARDS


High potential loss exposures in a cyclone

HIGH POTENTIAL LOSS EXPOSURES IN A CYCLONE

A communities people, property, essential and critical infrastructure, business enterprise, government centers, crops, wildlife, and natural resources.


Hazards of a severe windstorm aka potential disaster agents

HAZARDS OF A SEVERE WINDSTORM (AKA POTENTIAL DISASTER AGENTS)

  • WIND FIELD (CLOCKWISE DIRECTION; CAT 1 (55 mph) TO CAT 5 (155 mph or greater)

  • STORM SURGE

  • HEAVY RAINFALL

  • LANDSLIDES (MUDFLOWS)

  • COSTAL EROSION

  • TORNADOES (SOMETIMES)


Lessons learned from past notable disasters australia part 2 cyclones

CAUSES OF DAMAGE

WIND PENETRATING BUILDING ENVELOPE

UPLIFT OF ROOF SYSTEM

FLYING DEBRIS

STORM SURGE

SEVERE WINDSTORMS

IRREGULARITIES IN ELEVATION AND PLAN

“DISASTER LABORATORIES”

DESIGN PROBLEMS

FLOODING AND LANDSLIDES


Lessons learned from past notable disasters australia part 2 cyclones

  • HAZARDS

  • INVENTORY AT RISK

  • VULNERABILITY

  • LOCATION

  • PREPAREDNESS

  • PROTECTION

  • EARLY WARNING

  • EMERGENCY RESPONSE

  • RECOVERY and

  • RECONSTRUCTION

CYCLONE RISK

POLICY OPTIONS

ACCEPTABLE RISK

RISK

UNACCEPTABLE RISK

CYCLONE DISASTER RESILIENCE

DATA BASES AND INFORMATION

AUSTRALIA’S COMMUNITIES

HAZARDS: GROUND SHAKING GROUND FAILURE SURFACE FAULTING TECTONIC DEFORMATION TSUNAMI RUN UP AFTERSHOCKS


Lessons learned about disaster resilience

LESSONS LEARNED ABOUT DISASTER RESILIENCE

ALL CYCLONES PREPAREDNESFOR THE EXPECTED AND UNEXPEDTED IS ESSENTIAL FOR DISASTER RESILIENCE


Lessons learned about disaster resilience1

LESSONS LEARNED ABOUT DISASTER RESILIENCE

ALL CYCLONES EARLY WARNING IS ESSENTIAL FOR EVACUATION AND PREPARATION OF THE LAST LINE OF DEFENSE, WHICH ARE ESSENTIAL FOR DISASTER RESILIENCE


Lessons learned about disaster resilience2

LESSONS LEARNED ABOUT DISASTER RESILIENCE

ALL CYCLONES

TIMELY EMERGENCY RESPONSE IS ESSENTIAL FOR DISASTER RESILIENCE


Some of australia s worst cyclones

SOME OF AUSTRALIA’S WORST CYCLONES

Cyclone TRACY: 1974

Cyclone LARRY: 2006

Cyclone HAMISH: 2009


Cyclone tracy

CYCLONE tRACY


Cyclone tracy s path

CYCLONE TRACY’S PATH


Impacts of cyclone tracy

IMPACTS OF CYCLONE TRACY

  • Cyclone Tracy devastated the city of Darwin in Australia’s Northern Territory from Christmas Eve to Christmas Day, 1974.


Impacts of tracy

IMPACTS OF TRACY

  • Tracy killed 71 people, caused AS837 million in damage (1974 dollars) and destroyed more than 70 percent of Darwin's buildings, including 80 percent of the houses.


Impacts of tracy1

IMPACTS OF TRACY

  • More than 30,000 of Darwin’s 47,000 inhabitants were evacuated from Adelaide, Whvalla, Alice, Springs, and Sydney.

  • Many never returned to Darwin.


After tracy

AFTER TRACY

Darwin was rebuilt using modern materials and updated building practices that incorporated wind engineering


Cyclone larry

CYCLONE LARRY


Queensland

QUEENSLAND


Lessons learned from past notable disasters australia part 2 cyclones

Larry made landfall in far North Queensland close to Innisfail on 20 March 2006 as a Category 4 with wind gusts reaching 240 kilometers per hour (150 mph), and dissipating over land soon afterward.


Cyclone larry march 15 20 2006

CYCLONE LARRY: MARCH 15-20, 2006


Cyclone larry s track march 15 20 2006

CYCLONE LARRY’S TRACK: MARCH 15-20, 2006


Larry s impacts

LARRY’S IMPACTS

  • Throughout Queensland, Cyclone Larry resulted in A$1.5 billion ($1.1 billion USD) in damage, making Larry, at that time the costliest tropical cyclone to ever impact Australia, surpassing 1974’s Cyclone Tracy’ loss.


Cyclone hamish

CYCLONE HAMISH


Cyclone hamish march 4 11 2009

CYCLONE HAMISH: MARCH 4-11, 2009


Cyclone hamish track march 4 11 2009

CYCLONE HAMISH‘ TRACK MARCH 4-11, 2009


Cyclone hamish1

CYCLONE HAMISH


Cyclone hamish s impacts

CYCLONE HAMISH’S IMPACTS

Hamish was a CAT 4 storm with 290 kph (175 mph) winds

Coal exports were disrupted

The tourist industry was slowed.

It caused a major oil spill.


Heavy rainfall

HEAVY RAINFALL

  • Hamish produced heavy rainfall over North Queensland with accumulations of 300 mm (12 in) in some areas.

  • Mackay recorded 284 mm (11 in) in 2 days, and in combination with high tide, Hamish produced a 6.3 m (20.6 ft) tide in Mackay, flooding some streets.


Cyclone hamish oil spill impacts beaches

CYCLONE HAMISH: OIL SPILL IMPACTS BEACHES


The next cyclone season is on the way

THE NEXT CYCLONE SEASON IS ON THE WAY

  • CYCLONE DISASTER RESILIENCE IS NOT AN IMPOSSIBLE DREAM!


Lessons learned about disaster resilience3

LESSONS LEARNED ABOUT DISASTER RESILIENCE

ALL CYCLONES

RECOVERY AND RECON-STRUCTION IS ABOUT KNOW-ING WHAT TO DO DIFFFERENTLY WHEN START-ING OVER AGAIN.


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