Indonesian earthquake and tsunami val 2015
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An undersea earthquake of magnitude 9.0 struck off the coast of Sumatra on December 26, 2004, generating tsunamis that ravaged coastal regions across the Indian Ocean. Within hours, multiple tsunamis had swept across the Indian Ocean, killing over 120,000 people in Indonesia, Sri Lanka, India, and Thailand. The earthquake occurred along a fault line between the Australian and Eurasian tectonic plates, causing the seafloor to shift vertically by 10 meters and displacing massive amounts of water that formed a tsunami. The tsunami waves traveled at high speeds across the ocean and devastated many coastal areas, leveling entire villages in Indonesia.
Indonesian earthquake and tsunami val 2015
- 1. INDONESIAN TSUNAMI 26TH DECEMBER 2004 At GMT 00.59 a magnitude 9 undersea earthquake shook the sea bed off the north west coast of Sumatra. Within hours multiple tsunamis had swept across the Indian Ocean ravaging coastal regions and killing over 120,000 people.
- 2. Two tectonic plates, the Australian and Eurasian plates, meet just off Sumatra's south-west coast, grinding together and sending periodic seismic tremors through the region. violent rupture occurred on the sea floor along a fault about 1,000km long. Source:-BNPB,2005
- 3. Area affected The 9.0 magnitude quake, which was the strongest in the world for at least 40 years, wreaked havoc across the whole region. Walls of water, tens of metres high, slammed into coastal resorts thousands of miles apart. Surging seas and floods were reported as far away as east Africa. Source:-BNPB,2005
- 4. Deadly wave All along the rupture the seafloor was shunted vertically by about 10 metres. This movement displaced the overlying water, generating a massive tsunami, or tidal wave. The wave then fanned out across the Indian Ocean at enormous speed. Source:-BNPB,2005
- 5. “Scale of devastation Thousands are reported to have been killed, but there has been little news from the worst-hit areas where all transport and communication links were destroyed. “ bbc.co.uk 27.12.04 The Aftermath Early reports gave no hint of the scale of the disaster…….
- 6. Whole villages were flattened as here in indonesia
- 8. Damage map of Banda Aceh showing the impact of tsunamis wave fronts from two directions. The numerals indicate the tsunami elevation in meters near the beach (white) and flow depth inland (black). Source :- UNOSAT, Tsunami data: Borrero et al. 2006, Jaffe et al., 2006, Matsutomi et al., 2006).
- 16. Source:-International strategy for disaster management ISDR,2004
- 20. CONCLUSIONS • The Tsunami caused in indonesia killed >300,000 people because there was no Warning System. • Source region for Tsunami extends from Banda Aceh through the Nicobar Islands. • We need a method for estimating size of great earthquakes within a time frame useful to the Tsunami Warning System.
- 21. References:- Geocities, web page: www.geocities.com Goda Y., Random Seas and Design of Maritime Structures, University of Tokyo Press,Tokyo, Japan, 323 pp. Mapsoftworld, web page: www.mapsoftworld.com USGS, Geological Survey web:http://earthquake.usgs.gov/eqinthenews/2004/usslav/ "Tsunamis and Earthquakes: Tsunami Generation from the 2004 Sumatra Earthquake — . Walrus.wr.usgs.gov. Retrieved 12 August2010