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Tsunamis Maintained by FAO-FI  
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Indian Ocean tsunami
 
Aceh, Indonesia following the tsunamiOn 26 December 2004, an earthquake, measuring 9.0 on the Richter scale, occurred off the coast of western Sumatra, Indonesia and generated a massive and destructive tsunami. The tsunami took less than 2 hours to reach Thailand and Sri Lanka, 3.5 hours to get to the Maldives and nearly 8 hours to arrive in East Africa. Tidal disturbances were reported on the North West coast of Australia. See the Animation of the Indian Ocean Tsunami - Global in the News below. The death toll now stands at more than 295,000.

The last transoceanic tsunami to hit the region was in 1882, and this was caused by Krakatoa’s eruption in Indonesia. Other large earthquakes along the Sumatra trench had not caused major tsunamis, or if they had, they had not been reported as devastating. Outside the Pacific, no tsunami warning systems or centres exist, although the tsunami hazard has long been known to exist on both sides of the Atlantic Ocean, in the Mediterranean, Caribbean and Black Seas and in the eastern Indian Ocean.

A further tsunami struck the south coast of Java, Indonesia on 17 July 2006. It was triggered by an undersea earthquake of magnitude 7.7 to the south of Java island. While the death toll is much lower than in the 2004 tsunami, at least 50 000 people have been displaced. An Indian Ocean tsunami warning system is being developed; it is not yet operational. There do however appear to have been some alerts.
Photo title: Aceh, Indonesia following the tsunami
Photo credit: NBC.com
 
Pacific Tsunamis
 
Tsunamis, one of the most destructive forces of nature, are described in general terms. IOC co-sponsors an information center and warning system for tsunamis in the Pacific and organizes relevant training and infrastructure building for Member States in that region.

An earthquake in Samoa, measuring 7.9 on the Richter scale struck at 1748 local time (UTC) on 29 September 2009. It was centred at 15 deg S and 171 deg W, in the Samoa Islands Region at a depth of about 35 km. The Pacific Tsunami Warning Center warned that the quake was likely to have generated a tsunami. The initial warning covered American Samoa; Samoa; Niue; Wallis-Futuna; Tokelau; Cook Islands; Tonga; Tuvalu; Kiribati; Kermadec Is; Fiji; Howland-Baker; Jarvis Is.; New Zealand; French Polynesia; and Palmyra Is. There are early reports of 95 deaths and widespread damage in Samoa and American Samoa although the alert has been downgraded in the broader South Pacific region. A previous tsunami occurred when an 8.0-magnitude undersea quake struck at 0740 local time on 3 April 2007 (2040 GMT 2 April), near New Georgia in the Solomon Islands, and was followed by a tsunami which brought huge waves crashing down on the coastline of this remote Pacific region. Most of the 28 known victims were in Gizo, a small fishing town and diving centre only 45km (25 miles) from the epicentre of the quake. Many of the town's buildings and infrastructure have been destroyed.

The tsunami has rekindled the debate about warning systems. Some experts said they were of little use if the affected areas [of earthquake and tsunami] were so close, as with Monday's quake. But UN special coordinator for the early warning system in Indonesia, Michael Rottmann, said even a warning of 10 minutes could save 'a lot of lives'. Story courtesy BBC News: Asia-Pacific   See More...
 
Samoa 29 September 2009
 
Map of sea level rise following tsunami in Samoa
Photo title: Map of sea level rise following tsunami in Samoa
Photo credit: NOAA Tsunami Warning Centre Pacific North West
More images from American Samoa courtesy the BBC; some showing people who had enough warning to escape to higher ground.
 
Chile 27 February 2010
 
Chile quake tsunami 27 February 2010
Photo title: Chile quake tsunami 27 February 2010
Photo credit: NOAA
A large earthquake of magnitude 8.8 struck near the central coast of Chile on 27 Feb 2010 at 06:34 hr UTC. Latitude: 36.1° S Longitude: 72.6° W The depth was 55 km (34.2 mi). At least 789 people are dead; the death toll would have been much higher except for the location of the quake and the strict building codes in Chile, a zone of frequent earthquakes. A tsunami struck Concepción and adjacent areas of the Chilean coast and generated an alert throughout the Pacific rim and oceanic islands. The tsunami was not as destructive as initially feared on distant shores but caused substantial damage to fishing boats, infrastructure and coastal towns in the local area.
 
A boat lies marooned on a street in Talcahuano, Chile, Monday, March 1, 2010.
Photo title: A boat lies marooned on a street in Talcahuano, Chile, Monday, March 1, 2010.
Photo credit: Associated Press
 
 
 
 
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News
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Websites
A wide range of data related to the earthquake and tsunami. 2004 Indian Ocean Earthquake and Resulting Tsunami A wide range of data related to the earthquake and tsunami. 
Geospatial data for the various aspects of post tsunami disaster management. Asia Tsunami Geospatial Data Geospatial data for the various aspects of post tsunami disaster management....  
Remote Sensing and Geographic Information System in Indonesia to the natural disaster in the Province of Nanggroe Aceh Darussalam (NAD) and its surrounding. Asia Tsunami Geospatial Data Page Remote Sensing and Geographic Information System in Indonesia to the natural di...  
Links to Resources and Information Relevant to Tsunami Affected Areas Asian Tsunami 2004. Links to Geospatial Resources from CSI Links to Resources and Information Relevant to Tsunami Affected Areas 
The latest news on Australian relief efforts and background on the Indian Ocean Disaster. Australian Government Aid Site for the Indian Ocean Disaster The latest news on Australian relief efforts and background on the Indian Ocean...  
Timely collection and updating of an online, global, wide-area imagery archive Before and After Satellite Images of Tsunami Sites Timely collection and updating of an online, global, wide-area imagery archive...  
a dedicated sub website of APFIC dedicated to the Tsunami FAO Asia Pacific Fisheries Commission information on the Tsunami a dedicated sub website of APFIC dedicated to the Tsunami 
A site dedicated to the Tsunami and the action of FAO and partners FAO Tsunami site: Help rural people rebuild their lives A site dedicated to the Tsunami and the action of FAO and partners 
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