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Deadly tsunami 'shadows' visible from space give early warning of killer waves. (2005) indicates that oblique motion occurred on the northern part of the fault rupture.Tsunami beaming refers to the higher tsunami amplitudes in a direction perpendicular to fault orientation during open-ocean propagation. Complexity of the earthquake source and refraction/scattering during propagation will affect the tsunami beaming pattern.Another way to compare the open-ocean tsunamis between these two earthquakes is to look at the tsunami wavefield for each earthquake, as shown in the snapshots and animations below. The seafloor is colored red where the seafloor moves upward and colored blue where it moves downward.The tsunami beaming plots shown below are constructed by determining the maximum tsunami amplitude over four hours of propagation time. A more complete analysis of the focal mechanicsm by Tsai et al.

During the 2004 Indian Ocean tsunami was the first time that satellites collected transects of sea-height data using radar altimetry that clearly showed a tsunami signal during its propagation across the Indian Ocean. Tsunami Indischer Ozean 2004. We measured 37 points in total, the tsunami heights are less than 10 m, except at a few locations. View comments. The tsunami is generated between the island of Sumatra and the Sunda Trench. Dabei ausgelöste Tsunamis haben … The first 2 hours of tsunami propagation are shown. In addition that we could detect two other tide gauge records from the web-site. During our survey, we also collected five paper copies of analog tide gauge records. In contrast, large strike-slip earthquakes, involving more horizontal than vertical displacement of the sea floor, are not efficient tsunami generators.Here we provide a brief overview of the tectonic setting and seismological chacteristics of the earthquake, as well as a summary of tsunami generation modeling for this event and the March 28, 2005 M=8.6 northern Sumatra earthquake.The tsunami from the 2004 M=9.1 Sumatra-Andaman earthquake was primarily caused by vertical displacement of the seafloor, in response to slip on the inter-plate thrust fault (see Tectonics section above).This focal mechanism is associated with the southern part of fault rupture near the epicenter. See more ideas about Tsunami, Natural disasters, Earthquake and tsunami.

Erdbeben und Tsunami am 26. In particular, note that the open-ocean wave length for the 2004 tsunami is shorter than for the 2005 tsunami. Thailand located approximately 500 km east of its source, was also severely suffered from the tsunami. The whole coastal area facing the Andaman Sea could be covered. Therefore, totally seven tide gauge records were obtained in Thailand.

From 24 February through 4 March 2005, we surveyed the damaged areas in Thailand from south of Phuket Island up to the border of Myanmar including four islands. This phenomenon corresponds to the eyewitnesses’ accounts of the survivors who experienced the tsunami.Thai Meteorological Department, Sukhumvit Rd., Bangna, Bangkok, 10260, ThailandHydro and Agro Informatics Institute, Rangnam Rd., Phayathai, Ratchatewi, Bangkok, 10400, ThailandIntergovernmental Oceanographic Commission (IOC), Post-tsunami survey field guide, UNESCO IOC Manuals and Guides, No. Forecast models are based on initial earthquake information and are used to estimate tsunami wave heights during propagation. The Jason-1 trackline is colored pink where the model amplitudes are positive and colored blue where they are negative.Now we can add water onto the simulation above to see how the tsunami waves move away from earthquake source region. The 2004 Indian Ocean earthquake and tsunami (also known as the Boxing Day Tsunami and, by the scientific community, the Sumatra–Andaman earthquake) occurred at 07:58:53 in local time on 26 December, with an epicentre off the west coast of northern Sumatra, Indonesia.It was an undersea megathrust earthquake that registered a magnitude of 9.1–9.3 M w, reaching a Mercalli intensity up to … This simulation has more vertical exaggeration than the previous view to the north, in order to better highlight the phases. It then propagates outward into the Bay of Bengal and to the east toward Sumatra . The tsunami is generated between the island of Sumatra and the Sunda Trench. I'm referring of course to the 26 December 2004 earthquake and tsunami that claimed over 230,000 lives. 37, 62 pp., 1998.Yoshinobu Tsuji & Yuichi NamegayaTsuji, Y., Y. Namegaya, and J. Ito, Astronomical tide levels along the coasts of the Indian Ocean, http://www.eri.u-tokyo.ac.jp/namegaya/sumatera/tide, 2005.Rangsit University, Phaholyothin Rd., Lak-Hok, Pathumhani, 12000, Thailand Indonesian officials estimated that the death toll there alone ultimately exceeded 200,000, particularly in northern Sumatra’s Aceh province.
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