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The Politics of Shaky Ground The Impact of Earthquakes, Tsunamis, and Mudslides
Taiwan Earthquake, June 2013
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Today’s Discussion • Housekeeping • Brief Overview • Student Presentation • When the Ground Moves • Impacts of Earthquakes, Tsunamis, and Mudslides • Questions & Discussion • Next Class
Taiwan Earthquake, June 2013
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Housekeeping
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House Keeping • Presentations: PPT before class • Thursday (2/6): Carrie Kahn,
10-11am Mother Rosalie Hall (Executive Classroom) • Tuesday (2/11): Film & PPT (no
class session). • Sacramento (Spring 14) Contact
Gary Gray (ggray@). • Internships: Justice in Mexico).
Contact Octavio Rodriguez (orodriguez@) • Study Abroad (Summer 14):
Politics of Mexico (Guadalajara)
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Student Presentations
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Students Currently Enrolled Students Listed Here Are Formally Registered in the Course
Chris Allison Chris Constantinou Kip Dean Gabriela Everett Dominic Galleno
Brandon Herbeck Robert Jackowski Patrick Kaufer Armando Leyva Nataly Ortega Jason Parrott Dominic Pera
Lynna Tran Ian Rodgers Nancy Schneider
Berkley Brown
(as of 2/2/14)
Jeffrey Hallock
Nicole Shook Melanie Sitzer
? ? Kanto Quake Meiji Quake Cyclone Nargis
Hurricane Sandy
San Diego Fire
Chernobyl
H1N1 Flu
Challenger
Japan Tsunami
SF Quake
Pakistan Quake
Mexico Quake
Ethiopian Famine
Katrina Johnstown Flood Indonesia Tsunami Y2K Campeche Meteor Pompey Quake
Rashab Jain Glenn Ehrenberg Acapulco Floods Hindenberg
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Brief Review Concepts and Typologies of Natural Hazards and Catastrophic Events
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Main Points • Definitions are the basic units and perhaps most difficult aspect of any careful analysis. • Disasters are generally viewed as the combination of unintended hazards (acts of God) and human vulnerability. • Catastrophic events often have many similarities regardless of cause or intentionality.
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Our Definition of Disaster
Hazard
3 Sufficient Conditions
Unintended
Harm
Sudden
A Definition Is Basically A Conceptual Classification. Good Definitions Clearly Separate (Define) One Phenomenon From Another
Unexpected
Which of These Scenarios Is Really A “Disaster”?
Typical, but Not Necessary Conditions
2 Necessary Conditions
1 Necessary Condition
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Public Health Definition "A disaster is the result of a vast ecological breakdown in the relation between humans and their environment, a serious and sudden event (or slow, as in a drought) on such a scale that the stricken community needs extraordinary effects to cope with it, often with outside help or international aid.” —SWA Gunn, Multilingual dictionary of disaster medicine and international relief, 1990 (quoted by Noji 1997). Eric Noji, Center for Polar
Medical Operations at McMurdo Station
“Disasters are defined by what they do to people…”
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U.N. Definition (2000) “A serious disruption of the functioning of a community or a society involving widespread human, material, economic or environmental losses and impacts, which exceeds the ability of the affected community or society to cope using its own resources.”
Office for Disaster Risk Reduction
The United Nations International Strategy for Disaster Reduction forms part of the office of the UN Secretary General and “serves as the focal point in the United Nations system for the coordination of disaster risk reduction and to ensure synergies among disaster risk reduction activities.”
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Federal Government Definition “Any natural catastrophe including any hurricane, tornado, storm, high water, wind-driven water, tidal wave, tsunami, earthquake, volcanic eruption, landslide, mudslide, snowstorm, or drought, or, regardless of cause, any fire, flood, or explosion in any part of the United States which in the determination of the President causes damage of sufficient severity and magnitude to warrant major disaster assistance to supplement the efforts and available resources of States, local governments, and disaster relief organizations in alleviating the damage, loss, hardship, or suffering caused thereby.”
Definition for U.S. Presidential Disaster Declarations
U.S. President Barack Obama visits fire damaged homes in the Mountain Shadow neighborhood in Colorado Springs, June 29, 2012.
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Four Major Categories of Disaster Natural Disasters (Non-Routine, Small Scale)
Human Made Disasters (Routine & Large Scale)
Rapid Onset
Earthquakes, storms, floods, fire, heat/cold spells e.g., Indonesian Tsunami
Technological failures e.g., Chernobyl nuclear disaster
Slow Onset
Famine, disease HIV/AIDS Epidemic
Industrial pollution Centralia Coal Fire
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When the Ground Moves
Japan, 2011
Volcanoes, Earthquakes, Tsunamis, and Landslides
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Major Geophysical Events
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• Frequency: 550 active volcanoes around the world.
• Vulnerability: 500+ million people live within potential exposure of a volcano.
• Casualties: There were roughly 90K deaths, 14K injuries, and 4.72 million people affected by volcanic events from1900 to 2008. There were perhaps 250K deaths in recorded history.
Volcanoes A rupture of that causes the release of lava, ash, and gas from the magma layer beneath the earth’s surface.
Source: Shannon Doocy, Amy Daniels, Shayna Dooling, Yuri Gorokhovich, “Review of Events 1900-2009 and Systematic Literature Review,” PLOS Currents: Disasters, April 16, 2013.
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• Example: The governor ignored warning signs and issued reassuring proclamations in anticipation of the May 9 elections, even as vapors killed off livestock and lava flowed in the weeks and days before the eruption. The eruption occurred on May 8.
Politically Induced Vulnerability In the 1902 Mt. Pelée eruption, the entire population of St. Pierre (29K) died.
Wisner, et. al, “Ch. 8: Earthquakes and Volcanoes,” At Risk: Natural Hazards, People’s Vulnerability, and Disasters, 2004.
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A Closer Look
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Historical Trend, 1900 to 2000s Source: Shannon Doocy, Amy Daniels, Shayna Dooling, Yuri Gorokhovich, “Review of Events 1900-2009 and Systematic Literature Review,” PLOS Currents: Disasters, April 16, 2013.
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Seismic & Volcanic Activity
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Historical Trend, 1900 to 2000s
Regions as defined by the World Health Organization Source: Shannon Doocy, Amy Daniels, Shayna Dooling, Yuri Gorokhovich, “Review of Events 1900-2009 and Systematic Literature Review,” PLOS Currents: Disasters, April 16, 2013.
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• Frequency: There are roughly 1 million earthquakes every year, only a few deadly.
• Casualties: 1 million+ deaths over last 25 years (about 40-50k/year), mostly due to trauma. Almost 20x the # of deaths from volcanoes.
• Accompanying factors: Landslides, tsunamis, dust, stress, fire, smoke, chemical hazards, etc. may follow.
• Triggers: Plate movement, volcanic activity, topographical conditions, and human triggers (e.g., water injection, nukes, mining, etc.).
Earthquakes
China, 2008 (Sichuan Earthquake)
Rapid release of pressure and energy when plates move against each other, causing seismic waves that reverberate up through the earth’s surface.
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Measuring Magnitude Richter Scale: A measure of physical energy released by seismic activity was developed by Charles Richter in 1936, and based on logarithmic ratio that measures wave amplitude recordings on a seismograph.
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Measuring Magnitude
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Measuring Intensity: Modified Mercalli (MM) Intensity: Measures the observed effects by individuals of the severity of movement at a given location. The Modified Mercalli scale from MM I to MM XII is the most commonly used measure of intensity in the United States.
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Death Toll Factors Increasing Lethality
• Age (60+) • Mobility
• Composition of structure
• Floor occupied • Panic & stampede behavior
• Time to rescue
Eric Noji, Center for Polar Medical
Operations at McMurdo Station
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Death Toll: 1900-2010
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Economic Losses from Earthquakes
2011 was the worst year on record for economic losses due to earthquakes especially in Japan and New Zealand,
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A Closer Look
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An Even Closer Look
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Detection & Monitoring
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A Global View
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A Global View
The Ring of Fire
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A Global View 2005
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• Frequency: There have been 50-100 observed tsunami events from 1900 to 2010.
• Casualties: There were an estimated 250K killed, 50K injuries, and 1 million displaced by tsunamis from 1900 to 2009. 89% of deaths (89%) and injuries were attributed to the 2004 Indian Ocean tsunami.
Tsunamis When large quakes send seismic waves from under the sea, this can push large waves of water rapidly and across great distance.
Indonesia, 2004
Shannon Doocy, Amy Daniels, Anna Dick, Thomas D. Kirsch, “The Human Impact of Tsunamis: a Historical Review of Events 1900-2009 and Systematic Literature Review,” PLOS Disasters, April 16, 2013.
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Reported Tsunamis, 1900s to 2000s
Shannon Doocy, Amy Daniels, Anna Dick, Thomas D. Kirsch, “The Human Impact of Tsunamis: a Historical Review of Events 1900-2009 and Systematic Literature Review,” PLOS Disasters, April 16, 2013.
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Impact of Tsunamis, 1900s to 2000s
Shannon Doocy, Amy Daniels, Anna Dick, Thomas D. Kirsch, “The Human Impact of Tsunamis: a Historical Review of Events 1900-2009 and Systematic Literature Review,” PLOS Disasters, April 16, 2013.
Regions as defined by the World Health Organization
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Cross-Section of Japan
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Deadliest Earthquakes in Japan
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2011 Earthquake, Tsunami & Nuclear Disaster
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2011 Earthquake, Tsunami & Nuclear Disaster
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Nuclear Power vs. Tectonic Power
Blue= Nuclear Power Stations Green/Red=Seismic Activity
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• Occurrence: Landslides occur on steep slopes where natural vegetation has been destroyed (e.g., by wildfires, construction, roads, or other landslides) and may be triggered by earthquakes, volcanoes, rains, and other disturbances. Speeds up to 35 mph.
• Casualties: Firm numbers are elusive, but an estimated 200K people die from mudslides each year. ~30K died in Vargas, Venezuela mudslide in 1999.
Landslides, Mudslides, and Avalanches Flows of rocks, snow, and other debris down a slope due to some disturbance (often called a landslide, mudslide, or avalanche).
Brazil, 2011
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On December 15, 1999, tens of thousands of people were killed by a massive flash flood and debris flow that buried entire neighborhoods and destroyed over 8,000 homes.
1999 Vargas, Venezuela Mudslide
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• United States: An estimated 25-50 people die in the United States every year, causing up to $1 billion in economic losses.
• California: An average of 4 people die each year from landslides and mudslides, typically when debris flows buried people sleeping in lower-floor bedrooms adjacent to hazardous slopes. (Source: CA Dept. of Conservation).
Landslides & Mudslides in United States
Los Angeles, 2010
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• If mudslides are so deadly and so pervasive, why are mudslides not a greater focus of preoccupation and concern? Where are the mudslide celebrities and fund drives? Where are the Hollywood blockbusters about mudslides? Why do some less frequent and more avoidable disasters —like volcanoes— loom much larger in the public imagination?
The Politics of Disaster: Why Isn’t Mud Sexy?
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What to Do About Geophysical Events? Haiti, 2010
Prevention, Mitigation, Rescue, and Recovery
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• As with most disasters, responses include those efforts that a government, community, or individual can take to prevent, mitigate, rescue, and recover from the damage caused by catastrophic events.
• What are some of the measures that can be taken to anticipate, avert, and reduce the negative effects of major geophysical events?
Prevention, Mitigation, Rescue, and Recovery
Delinquent youth cleaning up at Fukushima
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• Vegetation & Forestation: Proper planting techniques can help to reinforce against debris falls.
• Retaining Structures: Some landslides can be prevented through retaining walls.
• Human Triggering: Some hazards can be averted or reduced in severity by releasing pressure (e.g., avalanche).
Prevention Measures Preventative measures seek to control the frequency and occurrence of a hazard, and reduce overall vulnerability.
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• Zoning & Building Codes: Proper placement, construction, and retrofitting of structures can help to prevent vulnerability to hazard.
• Detection & Monitoring: Efforts to detect and track seismic activity can provide valuable information to reduce vulnerability.
• Warning and Instruction: Efforts to provide advance warning and public information on hazard avoidance can help to mitigate the effects.
Mitigation Efforts Mitigation efforts seek to reduce the overall vulnerability to and damaged caused by an imminent or existing hazard.
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• Amateur Rescue Teams: Persons on the scene of an event are the most likely to provide immediate assistance.
• Trained Search Teams: In the days following an event, outside search teams can help rescue victims and identify the dead.
• Warning and Instruction: Efforts to provide advance warning and public information on hazard avoidance can help to mitigate the effects.
Rescue Efforts In the aftermath of a major geophysical event, finding and treating victims is the immediate priority.
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Concluding Observations The Politics of Shaky Ground
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• Major Geological Events Have Political Causes & Consequences: Effective planning and response can make an enormous difference in reducing vulnerability, and failure to do so can lead to political vulnerability.
• What We Don’t Know Can Hurt Us: Noji points out that our empirical knowledge is limited about risks and human vulnerability (e.g., distribution of substandard structures, effectiveness of duck-and-cover, etc.).
Concluding Observations
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