Tsunami death toll Indonesia94,081 Sri Lanka28,729 India9,067 Thailand4,993 Somalia200 Myanmar90 Maldives80 Malaysia68 Tanzania10 Bangladesh December 26,

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Presentation transcript:

Tsunami death toll Indonesia94,081 Sri Lanka28,729 India9,067 Thailand4,993 Somalia200 Myanmar90 Maldives80 Malaysia68 Tanzania10 Bangladesh December 26, 2004 Indonesian Tsunami

Cross-section of a tsunami

History of tsunamis

Earthquake Epicenter and Areas Affected

3. Tsunamis a. Tsunami means “harbor wave” in Japanese. b. It is caused by an earthquake under the ocean. 1)May travel up to 800 km/hr in open ocean 2) Height in ocean very short; maybe 1 meter 3) Wave lengths often 100 km 4) Wave period 5 minutes to 1 hour apart 5) Height at shore may be 40 meters 6) Usually occur in Ring-of-Fire countries

How Tsunamis are Produced

India’s last active volcano in the Andaman Islands erupted in response to the earthquake on December 26, 2004.

Location of Andaman Islands

About 400 islands, 38 inhabited Islands are peaks of submerged mountain range Indian territory, area of 8,249 sq km Population around 370,000, about 100,000 in Port Blair Number of tribes, including Jarawas, Onges and Shompens

Following are pictures from the 9.0 earthquake that occurred off the coast of Sumatra on December 26, The tsunami that was produced traveled at mph across the ocean, and created waves of 10 meters at shore. Was the largest earthquake in the past 40 years Many were unaware of the oncoming Tsunami 155,000 fatalities, 500,000 injured and $10 Billion in damages, with 5 million either losing home or access to food and water

Devastation from tsunami caused by massive earthquake. Wave was 10 meters high, and moving about 30 miles/hr. when it hit the shore. Mariana Beach, Madras, India

India

Velankanni, India

Hikkaduwa, Sri Lanka

Groundwater level hydrograph from the Aurora Observation well showing seismically--induced water level fluctuations.

Hikkaduwa, Sri Lanka

Patong Beach, India

Data from USGS

This fishing boat landed on the main street of Banda Aceh several miles from the sea.

#4 is the 12/26/04 earthquake off of Sumatra

After the water receded

Damage to Shoreline

Before and After

IKONOS Photo

Another Before and After

When Tsunami Hit

Damaged Home in Thailand

Deadly Disasters

Debris in Indonesia

Damaged Trawlers

Destroyed Homes

Picture from Above the Tsumani

IKONOS Before and After

Looking for Belongings

More Before and After

More Damage

Remains of Fishing Colony

Damage in Somalia

Damage in Sumatra

IKONOS Before and After

Remains of Trawler

End of Sumatra earthquake that occurred on December 26, 2004.

Japanese boats left high and dry by tsunami

Sightseers in Japan looking at tsunami wave Many probably regret it !!!

Timber driven through tire by force of tsunami

Tsunami wave on coast of Japan

Damage to island of Hilo, Hawaii by tsunami

P and S Waves Inside the Earth

A Week’s Worth of Earthquakes

Banda Aceh Grand Mosque June 23, 2004 DigitalGlobe

Banda Aceh Grand Mosque December 28, 2004 DigitalGlobe

Kalutara Beach, Sri Lanka Prior to Tsunami DigitalGlobe

Kalutara Beach, Sri Lanka, with Tsunami Waters Receding DigitalGlobe

Kalutara Beach, Sri Lanka, Prior to Tsunami DigitalGlobe

Kalutara Beach, Sri Lanka, After Tsunami DigitalGlobe

End of Powerpoint. Additional slides follow.

Earthquakes greater than M-2.5 over 7 days

Thrust Fault and Fold