Just-in-Time Lecture
Sponsored Links
This presentation is the property of its rightful owner.
1 / 58

www.pitt.edu/~super/ PowerPoint PPT Presentation

  • Uploaded on
  • Presentation posted in: General

Just-in-Time Lecture. www.pitt.edu/~super/. China Earthquake: 12 May 2008. Mission Statement. The Global Disaster Health Network is designed to translate the best possible scholarly information to educators worldwide. Mission Statement.

Download Presentation


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Just-in-Time Lecture


China Earthquake: 12 May 2008


Mission Statement

  • The Global Disaster Health Network is designed to translate the best possible scholarly information to educators worldwide.


Mission Statement

  • The Global Disaster Health Network is designed to translate the best possible scholarly information to educators worldwide.

What are the Disaster Supercourse & JIT lecture?


What is the Disaster Supercourse?

What is a JIT lecture?



Lecture objectives

  • To provide the best possible scientific

    information about the China

    earthquake, 12 May 2008

  • To teach how the science can help

    Chinese to be prepared for primary &

    secondary prevention of consequences of



Lecture Objectives

  • In this lecture you will find:

  • How the vulnerability conditions can change

    a natural hazard to a disaster?


What is the Earthquake?

The shaking of earth caused by waves moving on and below the earth's surface and causing: surface faulting, tremors vibration, liquefaction, landslides, aftershocks and/or tsunamis.


How Earthquake Happens?

  • It caused by a sudden slip on a FAULT.

  • Stresses in the earth's

    outer layer push sides of

    fault together.

  • Stress builds up & rocks

    slips suddenly, releasing

    energy in waves that travel

    through the earth's CRUST

    & cause the shaking that we

    Feel during an earthquake.


Earthquake Strength Measures

I) Magnitude & II) Intensity

I) Magnitude:

  • Definition:A measure of actual physical energy release at its source as estimated from instrumental observations.

  • Scale:Richter Scale

    • By Charles Richter, 1936

    • Open-ended scale

    • The oldest & most widely used

Noji 1997


Earthquake Strength Measures

I) Magnitude & II) Intensity

II) Intensity:

  • Definition:a measure of the felt or perceived effects of an earthquake rather than the strength of the earthquake itself.

  • Scale:Modified Mercalli (MM) scale

    • 12-point scale, ranges from barely perceptible earthquakes at MM I to near total destruction at MM XII


Magnitude versus Intensity

  • Magnitude refers to the force of the earthquake as

    a whole, while intensity refers to the effects of an

    earthquake at a particular site.

  • An earthquake can have just one magnitude, while

    intensity is usually strongest close to the epicenter

    & is weaker the farther a site is from the epicenter.

  • The intensity of an earthquake is more germane to

    its public health consequences than its magnitude.


Public Health Consequences

of Earthquakes

Please see the following addresses for above title:

Part I.


Part II.



The most populous country

3rd largest country

23 provinces

5 autonomous regions

4 municipalities

2 special administrative regions (Hong Kong & Macau)

56 ethnic groups:

91.6% Han people

8.4% others

Peoples Republic of China


World’s economic superpower

Fastest-growing nation for the past 25 years

Average annual GDP growth rate above 10%

Economic Development in China



Urban areas:

Street clinics – primary health care

District hospitals – secondary care

City hospitals – tertiary care

Rural area:

Village clinics – primary care

Township hospitals – secondary care

Country hospitals – tertiary care

Health System Structure in China

China s health statistics

China’s Health Statistics

Source: WHO




Land subsidence




Natural Hazards in China

10 top disaster in china sorted by damage us

10 Top Disaster in China Sorted by Damage US$

History of deadly earthquakes in china

History of Deadly Earthquakes in China

Source: Wikipedia

Sichuan province

Sichuan Province

Area 485,000 km²

Population (2004) 87,250,000 (3rd)

Density 180 /km² (22nd)

Major nationalities

Han 95.0%

Yi 2.6%

Tibetan 1.5%

Qiang 0.4%

Economy of sichuan province

Economy of Sichuan Province

  • Heavy industries: Coal, energy, iron & steel industry

  • Major producer of Rice & Wheat

  • Large output of Pork & Silkworm

  • > 132 kinds of underground mineral resources


Magnitude: 7.9 Richter scale

Local earthquake time: 14.48 Beijing-time

Location: 30.986°N, 103.364°E

Depth: 19 km (11.8 miles)

West Sichuan Earthquake, 12th May 2008

Tectonics of sichuan earthquake

Tectonics of Sichuan Earthquake

Motion on a northeast striking reverse fault or thrust fault on the northwestern margin of the Sichuan Basin

Sichuan earthquake aftershocks

Sichuan Earthquake Aftershocks

4-5 Richter scale: 105 aftershocks

> 5 Richter scale: 54 aftershocks

Aftershocks caused:

Death: 1

Injured: 400

Toppled houses: 70,000

Source: China Seismological Bureau

Harsh response situation

Harsh Response Situation

Difficult access by land due to extensive damage to physical infrastructure

Constrained access by air due to heavy rains also

National mourning

National Mourning

National Mourning

Three-days period of national mourning

The Chinese National Flag and Regional Flags of Hong Kong SAR and Macau SAR were raised at half mast.

Yahoo news


Death Tolls & Casualties (as of 23rd May)Affected population: 10.59 Millions and 5.2 Millions left homeless

Source: OCHA reports

Economical losses

Economical Losses

Sichuan Property Toll May Top 190 Billion Yuan

According to insurance experts: huge property losses from the disaster but modest insurance claims.


Infrastructure damage

Infrastructure Damage


Irrigation systems for 100,000 hectares of paddy fields

> 50,000 greenhouses

7.3 million square meters of livestock barns

Agricultural Damage

Relief web


Livelihoods of many of affected people is highly dependent on agriculture

Vulnerable to food insecurity

Loss of cereal stocks

Damaged agriculture production

Impaired income generation

Agricultural Damage

Building damage

Building Damage

Number of damaged/collapsed: >15,000,000

Building earthquake resistant structures makes good economic sense: 3-5% for typical buildings

Giant pandas

Giant Pandas

Unknown situation of 280 giant pandas in Wolong National Nature Reserve


Damage to schools buildings

12% of dead were students and their teachers

Many Schools Collapsed

Closed or locked Emergency exits

Damage to Schools Buildings

Source: Reuters Foundation Date: 24 May 2008

2006 7 international campaign on school safety

The world just passed a 2-years global campaign of Safe Schools

The 2006-7 Global campaign focused on promoting the safety of school buildings & mainstreaming of disaster risk reduction (DRR) into school curricula or at least school activities.

How are safe the schools in your community?

2006-7 International Campaign on School Safety


According WHO:

Treating The Injured

Communicable Disease Surveillance & Control

Ensuring Safe Water And Food Supply

Immediate & Long-term Mental Health & Psychosocial Support

Reconstruction Of Health Care System In The Affected Areas

Public Health Priorities


> 3.3 million tents

Garbage Treatment Facilities & Sewage Treatment Facilities

Chemical proof protective clothing, Shoes and masks

Radiation detector (X ray and Y ray survey meter, Personal dosimeter)

Medical Instruments like ECG, Operational Kits, etc

Medication for infectious disease

Urgent Needs

Source: UNOCHA situation report NO 6, 7 & 8


Deployment of public health experts to the field, including

TB experts

Mental health & Psychosocial support personnel

Public Health Response (as of 21st May)

OCHA Report

Do not forget children in sichuan

Do not forget children in Sichuan!

At least 5,498 children have been left alone in Sichuan Province's quake zone, either because they have been orphaned or their parents cannot be located

Do not forget elderly in sichuan

Do not forget elderly in Sichuan!

About 4,800 elderly people left alone due to death of their family or they have been separated from all their relatives

Secondary hazards possible damage to nuclear facilities radioactive sources

Secondary hazards: Possible damage to nuclear facilities & radioactive sources

32 radioactive sources in affected area

MEP Officials:

Safely shut down of all nuclear facilities after the quake

No leakage of radioactive substance

Health system responsibility:

Proactive approach to health consequences of radioactive exposure

Collaborate with MEP to make ensure of no radioactive leakage

Secondary hazards possible dam failure

Secondary hazards: Possible dam failure

30 cm movement of China's largest earth-rock dam due to earthquake

400 damaged dams with possible threat to downstream people

Secondary hazards derail fired train

Secondary hazards: Derail & fired train

Carrying gasoline

26 hours lasting fire

Evacuation of 900 residents due to fears of tank cars explosion

Lake formation flood threat

Lake Formation & Flood Threat

Creating natural dams by moved down rocks into rivers

Formation of 21 lakes throughout the basin

Dangers due to earthquake-created dams:

Upstream floods

Instability of the piles of rubble

Bursting the dam by another quake

Downstream floods by cascade of water

Evacuation of thousands of people from Beichuan

30 years continuous evolution in the practice of crisis or disaster management

30 years continuous evolution in the practice of Crisis or Disaster Management

Civil defense

Emergency assistance

Disaster response and relief

Humanitarian assistance

Emergency management

Civil protection

Disaster mitigation and prevention

Disaster Risk Management

Strategic shift from managing a disastrous event to more preventive and proactive approaches!!

What is disaster risk reduction disaster reduction or drr

What is Disaster risk reduction (disaster reduction or DRR)?

The conceptual framework of elements considered with the possibilities to minimize vulnerabilities and disaster risks throughout a society, to avoid (prevention) or to limit (mitigation and preparedness) the adverse impacts of hazards, within the broad context of sustainable development !


A potentially damaging physical event, phenomenon or human activity that may cause the loss of life or injury, property damage, social and economic disruption or environmental degradation.

What is the Hazard?

What is the vulnerability

What is the Vulnerability?

The conditions determined by physical, social, economic, and environmentalfactors or processes, which increase the susceptibility of a community to the impact of hazards.

Vulnerable Sichuan:

Unprepared people

Non-resistant house & school building

High-density population


What is risk

What is Risk?

The probability of harmful consequences, or expected losses (deaths, injuries, property, livelihoods, economic activity disrupted or environment damaged) resulting from interactions between natural or human-induced hazards & vulnerable conditions.

Risk = Hazards x Vulnerability

What is a disaster

What is a Disaster ?

A serious disruption of the functioning of a community or a society causing widespread human, material, economic or environmental losses which exceed the ability of the affected community or society to cope using its own resources.

What is a disaster1

What is a Disaster?

A disaster is a function of the risk process.

It results from the combination of hazards, conditions of vulnerability and insufficient capacity or measures to reduce the potential negative consequences of risk.

What is a Disaster?

Sichuan earthquake risk model

Sichuan earthquake: Risk model

Maybe Sichuan was not able to modify the hazard part of the earthquake risk model, and predict it precisely, BUT they could assess their vulnerability conditions and reduced them!

This has been the same experience in Bam & Kashmir, Yogyakarta !


Just-in-Time Education

Let’s teach the communities right now !

Risk awareness & Knowledge development including education, training, research and information are of the important fields of action for Disaster Risk Reduction!


Information ….

  • People need information as much as

    water, food, medicine or shelter.

  • Information can save lives, livelihoods &


  • Lack of information can make

    people victims of disaster.

World Disaster Report 2005 – IFRC/RCS


What we should do/do not before,

during & after the earthquake?

Please read carefully at:


Main lesson learned

Main Lesson Learned

So, an earthquake measuring 7.9 on the Richter scale is a big earthquake, but not necessarily equal to a disaster. It is just movement of the earth crust. Our vulnerability has changed it to a disaster!!




We wish to express our warm thanks to GDHNet faculties and all groups that contributed their valuable materials.

  • Login