Natural Hazard

Natural HazardPresented by Sarandhorn BamrungwongID 487 26083 23

WHAT is a natural hazard?A Natural Hazard is an unexpectedor uncontrollable natural event ofunusual magnitude that threatensthe activities of people or peoplethemselves. A Natural Disaster is anatural hazard event that actuallyresulted in widespread destruction ofproperty or caused in jury and/ordeath.

Hazard vs. RiskRisks and hazards are quitegenerally relating to the samenatural phenomenon or artificialconstruct. For example, a cumuluscloud is a hazard to aviation, as wellas a reef is a hazard to navigation,and ice on the road is a road hazard.Risk is generally defined as theprobability of loss.

Geologic Hazard• Earthquakes• Volcanoes• Tsunamis• Landslides• Drought• Floods

Earthquakeshttp://www.naturalhazards.orgwww.naturalhazards.org/Northridge Earthquake,California(photo courtesy of USGS)

Volcanoeshttp://www.naturalhazards.orgwww.naturalhazards.org/In 1991, Mt. Pinatuboerupted with a fury,resulting in completedisruption of life andextensive damage to landand property in thePhilippine Islands and manyother parts of the world(photo courtesy of USGS)

Tsunamishttp://www.usgs.govwww.usgs.gov/People run from anapproaching tsunami inHilo, Hawai'i, on 1 April1946; note the wave justleft of the man's head inright center of image.(Photo courtesy of thePacific Tsunami Museumin Hilo, Hawaii)

FloodsThe Lewes flood was on12th to 14th October 2000.http://www.leweswww.lewes-flood-action.org.uk/

Droughthttp://www.naturalhazards.orgwww.naturalhazards.org/Space Shuttle photographof sandstorms in theSahara Desert, Africa(photo courtesy of NASA)

Atmospheric Hazards• Climate Change• El Nino and La Nina• Thunder Storms• Hurricanes or Typhoon• Tornadoes• Wildland Fire• Fog• Snow and Ice

Thunder Stormshttp://www.naturalhazards.orgwww.naturalhazards.org/Mammatus clouds billowbeneath a supercellthunderstorm at sunset insouthern Wisconsin.

Hurricanes or Typhoonshttp://www.naturalhazards.orgwww.naturalhazards.org/Under pleasant blue skies, aroad sign in southern Floridais a reminder of the powerfulstorms that ravage the eastcoast of the US almost everyyear.

TornadoesTornado on the GreatPlains, USA(photo courtesy of NOAA)http://www.naturalhazards.orgwww.naturalhazards.org/

Wildland Firehttp://www.naturalhazards.orgwww.naturalhazards.org/Wildland fire on theColorado Front Range.

Significant Events in 2005http://www.ncdc.noaa.gov/

January 2006http://www.ncdc.noaa.gov/

February 2006http://www.ncdc.noaa.gov/

SEA Significant Events in 2006• February• Flooding produced a devastatinglandslide in the southeastern Philippineson February 17.• Across eastern Indonesia, landslidesand floods caused by torrential rain onthe 21st killed at least 33 people in thecity of Manado (OCHA).

Flooding in Philippineshttp://www.ncdc.noaa.gov/

http://www.ncdc.noaa.gov/

http://www.ncdc.noaa.gov/

SEA Significant Events in 2006• April• Flooding produced a devastatinglandslide in Colombia was prompted byheavy rainfall that began in early March2006 and continued through much ofApril.• In Indonesia, monsoon-related rainfallproduced flooding in East Java duringmid-April. At least 23 deaths werereported by the 20th, with most of thefatalities occurring in the Bendungansubdistrict (AFP).

SEA Significant Events in 2006• April•Tropical Cyclone Mala formed in theIndian Ocean on the 24th and reachedthe coast of Burma (Myanmar) in theGwa area on the 29th with maximumsustained winds near 185 km/hr (100knots or 115 mph). There were 22reported fatalities in Burma (TheIrrawaddy).

Tropical Cyclone Malahttp://www.ncdc.noaa.gov/

May 2006http://www.ncdc.noaa.gov/

SEA Significant Events in 2006• May• Three days of heavy rainfall in Thailandproduced deadly flooding in thenorthern part of the country during lateMay.• Heavy rainfall that began in late April2006 continued into early May inGuizhou province of southwesternChina. The resultant flooding wasblamed for 22 deaths and forced theevacuation of 36,900 residents fromtheir homes (AFP).

Flooding in Thailandhttp://www.ncdc.noaa.gov/

Landslide in Uttaradithttp://www.matichon.co.th/

Typhoon in Philippineshttp://www.ncdc.noaa.gov/

June 2006http://www.ncdc.noaa.gov/

SEA Significant Events in 2006• June• In Indonesia, torrential rainfall producedflooding on eastern Sulawesi Island inthe South Sulawesi province on the19th-20th.• Flooding in China• Tropical Storm Jelawat (June 26 – 29)

Tropical Storm Jelawathttp://www.ncdc.noaa.gov/

http://www.ncdc.noaa.gov/

SEA Significant Events in 2006• July• Flooding in Korea and China.• In the western Pacific Ocean• Typhoon Ewiniar (June 29 – July 10) - Korea• Tropical Storm Bilis (July 8 – 13) - Philippine• Typhoon Kaemi (July 18 – 24) - Taiwan

SEA Significant Events in 2006• August• Across the Philippines, landslides andflash floods triggered by heavy rainfallon the 14th (AFP).• In Vietnam, monsoon-related flooding incentral and northern regions of thecountry was blamed for 42 deaths bythe 20th (Reuters).

SEA Significant Events in 2006• August• Across northern provinces of Thailand,incessant rainfall during late-monthproduced flooding that was blamed foreight deaths. Flooding in Nan provincewas reportedly the worst in 40 years(IFRC).• In neighboring Cambodia, flooding alongthe Mekong River resulted in eightfatalities nationwide (AFP).

Flooding in Thailandhttp://www.ncdc.noaa.gov/

SEA Significant Events in 2006• August•Tropical Cyclones• Typhoon Prapiroon (July 31 – Aug 3)• Typhoon Saomai (Aug 4 – 10)• Typhoon Maria (Aug 5 – 10)• Tropical Storm Bopha (Aug 6 – 8)• Tropical Storm Wukong (Aug 12 – 17)

Typhoon in western Pacifichttp://www.ncdc.noaa.gov/

SEA Significant Events in 2006• September• Flooding in Thailand, Pitsanulok andPhichit on September 7, 2006.• Floods in Cambodia during the firstweek of September 2006.•Tropical Cyclones• Typhoon Shanshan formed on September10, 2006, in the western Pacific well off thecoast of the Philippine Islands.

Latest Flood in Thailandhttp://www.dartmouth.edu/~floods/Archives/

Conclusion on Flooding

Flood around the worldGlobal Flood Year 2005http://www.dartmouth.edu/~floods/Archives/

Flood around the worldGlobal Flood Year 2006http://www.dartmouth.edu/~floods/Archives/

Flood around the worldFlood Causeshttp://www.dartmouth.edu/~floods/Archives/

Flood around the worldFlood Causeshttp://www.dartmouth.edu/~floods/Archives/

Flood around the worldNumber of Floodhttp://www.dartmouth.edu/~floods/Archives/

Flood around the worldWhen Flood Startedhttp://www.dartmouth.edu/~floods/Archives/

Flood around the worldAverage flood durationhttp://www.dartmouth.edu/~floods/Archives/

Hazard Management Process1. Pre-event event Measures:a. Mitigation of Natural Hazards:- Data Collection and Analysis- Vulnerability Reductionb. Preparation for Natural Disasters- Prediction- Emergency Preparedness (includingmonitoring, alert, evacuation)- Education and Training2. Measures During and Immediately After NaturalDisasters:a. Rescueb. Relief3. Post-disaster Measures:a. Rehabilitationb. Reconstruction

Hazard Management Activities1. Disaster Mitigation2. Natural Hazard Prediction3. Emergency Preparedness4. Disaster Rescue and Relief5. Post-Disaster Rehabilitation andReconstruction6. Education and Training ActivitiesFrom:http://www.oas.org/dsd/publications/unit/oea66e/begin.htm#Contents

Reference• http://www.naturalhazards.org/• http://www.usgs.gov/• http://www.disaster.go.th/• http://www.ncdc.noaa.govwww.ncdc.noaa.gov/• http://earthobservatory.nasa.gov/NaturalHazards/• http://media.wiley.commedia.wiley.com/• http://www.oas.org/• http://www.dartmouth.eduwww.dartmouth.edu/Home