The 18 August 2008 avulsion of the Kosi River draining the parts of north Bihar in eastern India may well be regarded as one of the greatest avulsions in a large river in recent years. The Kosi River shifted by ~120 km eastward, triggered by the breach of the eastern afflux bund at Kusaha in Nepal at a location 12 km upstream of the Kosi barrage. This event was widely perceived as a major flood in the media and scientific circles. Although a large area was indeed inundated after this event, it is important to appreciate that this inundation was different from a regular flooding event.
Original Source [2]
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Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/great-avulsion-kosi-18-august-2008
[2] http://www.currentscience.ac.in/Downloads/article_id_097_03_0429_0433_0.pdf
[3] http://admin.indiaenvironmentportal.org.in/category/author/rajiv-sinha
[4] http://admin.indiaenvironmentportal.org.in/category/journal/current-science
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/indo-gangetic-plains
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rivers
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/kosi
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/sediment-transport
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/natural-disasters
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/floods
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hydrology
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/nepal
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/bihar
