4c_group4_earthquake To Be Presented

Geography Project: 2008 Sichuan earthquake Ng Chi Wai

(10)

Pun Yung Yin

(11)

Sze -To Man Yuk

(12)

Mak Chee Wa

(29)

Ng Man Ying

(30)

Tang Ka Po

(31)

Mind Map

Content

P.3

Detail of Sichuan Earthquake

P.4-5

Why did it happen?

P.6-8

Effects of Sichuan Earthquake - Immediate (P.9-11) Long term (P.12-14)

P.9-14

Potential dangers of Sichuan Earthquake

P.15-17

Reactions of the Chinese government

P.18-20

Reference

P.21

Mind Map Diseases

When Detail

Where

Potential dangers Landslide dam

Sichuan Earthquake

Why

Reactions of the Chinese Government

Effects

Long term Convergence of 2 plates

Immediate

Detail of Sichuan Earthquake Date:

May 12, 2008 (Monday)

Time:

02:28:01 .42 pm

Intensity:

8M (magnitude)

(UTC+8 H)

Detail of Sichuan Earthquake Epicenter: - In Wenchuan County of Sichuan province, China. - 80 km west-northwest of Chengdu, capital of Sichuan Province. - 19 km depth.

(shallow)

Why did it happen ? Northward convergence of the Indian Plate against the Eurasian Plate at a rate of 4cm/year. Convergence was broadly accommodated by the uplift of the Asian highlands.

Why did it happen ? The northerly convergence motion of the Indian plate pushed the crustal material . Resulted in easterly motion of Tibet and eastwards. -> Resulted in Sichuan earthquake.

Why did it happen ?

The diagram showing the location of the 2008 Sichuan earthquake (white star) as well as the location of all earthquakes occurring between 1964 and 2004 with magnitudes between 4.6 and 9.0 (colored circles).

Immediate effects of Sichuan Earthquake Death and casualties: Number of death:

62,664

Number of injured: 358,816 Number of missing:

23,775

Number of homeless: 4.8 million

Immediate effects of Sichuan Earthquake - Buildings fell down. (80% of the total buildings collapsed.) - Bridges, roads, flyovers collapsed.

Immediate effects of Sichuan Earthquake - Landslides and land subsidence. - Public services were cut off. (including water, electricity, gas supply, telecommunication)

Long term effects of Sichuan Earthquake Aftershock : - 90 strong aftershocks. - over 7,000 weak aftershocks. -> More death and casualties.

Long term effects of Sichuan Earthquake - Psychological effects. (including adults and children) Loss of: family members. friends. leg(s).

Long term effects of Sichuan Earthquake - Loss of properties. (Estimated loss exceed US$20 billion.) (Cost of reconstruction.)

Potential dangers of Sichuan Earthquake Landslide dam/ debris dam ( 堰塞湖 / 震生湖 ) - Vibration s sent rocks tumbling down to mountains into rivers. - Lakes quickly built up.

Potential dangers of Sichuan Earthquake

- Rocks may not be able to withstand the increasing force of water. - It may burst and the water will cause potential danger at the lower stream.

Potential dangers of Sichuan Earthquake Potential danger of widespread of diseases: - Cholera - Japanese Encephalitis Vector

Reactions of the Chinese government

Reactions of the Chinese government Compared with the reactions of Burmese government towards typhoon: - Very active. - Immediate visits of political figures. - Allowed foreign assistance. - Enforced the fluency of assistance and rescue work.

Reactions of the Chinese government 3-day national mourning - From 19th May up to 21st May. - Suspension of Beijing Olympic torch relay.

Reference http://hk.yahoo.com http://www.wikipedia.org http://www.google.com http://www.ne.jp/asahi/syaraku/kichinyado/index.html

http://www.tectonics.caltech.edu/2008MayChinaEQ/xic South China Morning Post

(Information up to 25th May)

-The End-