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Infrastructure blog nat-disasters-global-may19-2011-pdf


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Infrastructure blog nat-disasters-global-may19-2011-pdf

  1. 1. Natural Disasters Occurring More Globally?05.19.2011 Posted by Dr. W. Uddin in Natural Disaster… Natural disasters (earthquake, tsunami, landslide, and volcanic eruptions) andweather related natural disasters (hurricane/cyclone, tornado, flood, drought) areoccurring dramatically at increased frequency during the last decade, which isthought to be the result of climate change mechanisms. Extreme weather relateddisasters impacts include mobility and catastrophic failure of life lineinfrastructure. According to the U.S. National Oceanic and AtmosphericAdministration (NOAA), 96 weather-related disasters have occurred in the U.S.over the past 30 years (from 1980-2009) in which overall damages/costs reachedor exceeded one billion dollars per occurrence. About 60% of these disastersoccurred in southeastern states. Population settlements in hazard pronelocations expose large numbers of people to risk due to destruction of homesand disastrous failures of lifeline infrastructure including road and bridge network.Some examples of natural disasters follow which occurred during in 2010-2011around the world:  During April-May 2011 Mid-west and southern states in the U.S. were struck by mega tornados and pounded by torrential rains. Heavy rainfall resulted in flash floods and subsequently swelling Mississippi River, which crested at record levels since the great flood of 1927.  On March 11, 2011, the east coast of northern Japan was struck by a record magnitude 9.0 earthquake and tsunami causing large scale flooding and devastation. The disaster killed thousands of people and damaged homes, buildings, essential facilities, nuclear facilities, and critical lifelines infrastructure (e.g., March 2011, Japan’s Earthquake/Tsunami  transportation, electricity, utilities) over a wide area.  On February 22, 2011, New Zealand’s second largest city Christchurch was hit by M6.3 earthquake killing 180 people, an aftershock from 2010 Septembers M7.1 tremor. Prior to these two seismic events, this region likely had not experienced an earthquake in thousands of years.  During January-February 2011, torrential rain caused severe floods in Australia, Sri Lanka, and Saudi Arabia. Heavy rain and mudslides occurred in Brazil killing hundreds of people, making thousands homeless, and damaging roads and bridges.Infrastructure Global/ Natural Disasters/Global/Dr. Uddin’s Blog Post                                    1  
  2. 2. Jan 2011, Brazil’s Rain/Flood, Sao Paulo  Jan 2011, Brazil’s Rain/Mudslide, Rio de Janeiro   On October 25-27, 2010, Indonesia was struck nearly simultaneously by a M7.7 earthquake, 3 m-tsunami wave causing flooding, and another eruption of mount Merapi volcano.  On July 26, 2010, heavy monsoon rains caused flooding in northwest Pakistan and eventually flooded vast areas throughout Pakistan along the Indus River basin. The flood impacts include killing about 1,600 people, displacing millions of people,  and affecting July 2010, Pakistan’s Superflood of a large portion of agriculture land. Indus River Basin   Flooding from two separate heavy rainfall events during the first half of August 2010 killed over 1,500 people across China.  On February 27, 2010, a M8.8 earthquake struck Chile. About 80% of the population was affected and it claimed over 500 lives. Power failure affected 93% of the population.  On January 24, 2010, southern Haiti experienced magnitude 7.0 earthquake and numerous aftershocks killing 230,000 people, injuring 3 million people, and leaving another one million people homeless.Disasters can cause a serious emotional toll on the affected people even whenthey are not hurt physically. Natural disasters require fast response to save livesand manage emergency maintenance to repair damaged infrastructures. Remotesensing and geospatial technologies can expedite disaster impact assessmentand emergency management plans. For more info read Dr. Uddin’s paper inIJRA issue of January 2011, “Remote Sensing Laser and Imagery Data forInventory and Condition Assessment of Road and Airport Infrastructure and GISVisualization”. Infrastructure Global/ Natural Disasters/Global/Dr. Uddin’s Blog Post                                    2