Showing posts with label remote sensing. Show all posts
Showing posts with label remote sensing. Show all posts

Earthquake, tsunami in the Solomon Islands

Earthquake, tsunami in the Solomon Islands

Description of Event

A magnitude 8.1 earthquake followed by a tsunami occurred close to the Solomon Islands at 07:40 local time on 2 April. Giso Island was very affected but accurate information was not immediately available concerning the situation in the other islands.
Media provisionally reported 18 dead and 20 wounded.

Images and/or Image Products Delivered under the Charter Tsunami in the Solomon Islands

SPOT-5 image, Ranongga Island, preliminary damage assessment
Source: Spot-5 (pan-sharpened), resolution 2.5m.
Acquired: 07/04/2007
Initial damage assessment, coast of Ranongga Island. Possible tsunami-affected settlement areas have been classified into 3 types: 1) Possible Severe Building Damage (symbolized in red); 2) Possible Building Damage (in yellow); and 3) Building Damage Unlikely (in blue). Cloud cover has been symbolized to help highlight areas along the coast that have not been assessed for damage. Credit: Copyright CNES 2007; GIS Data: GIST, USGS, CGIAR, NASA, GEBCO. Image processing, map created 13/04/2007 by UNOSAT


SPOT-5 image, Simbo Island Island, preliminary damage assessment
Source: Spot-5 (pan-sharpened), resolution 2.5m.
Acquired: 07/04/2007
Initial damage assessment, coast of Simbo Island. Possible tsunami-affected settlement areas have been classified into 3 types: 1) Possible Severe Building Damage (symbolized in red); 2) Possible Building Damage (in yellow); and 3) Building Damage Unlikely (in blue). Cloud cover has been symbolized to help highlight areas along the coast that have not been assessed for damage. Credit: Copyright CNES 2007; GIS Data: GIST, USGS, CGIAR, NASA, GEBCO. Image processing, map created 12/04/2007 by UNOSAT.

Formosat-2 image, Kolombangara IslandSource: Formosat-2 (pan-sharpened), resolution 2m.
Acquired: 06/04/2007
Potentially affected local settlements along a portion of the western coast of Kolombangara Island. Settlement areas have been classified into two groups: those close to the coast and less than 10m in elevation (marked in red), and those above 10m and/or more than 250m from the coast (marked in blue). Because of limitations of spatial resolution and relevant pre-disaster imagery, a preliminary damage assessment was not conducted for this area. Credit: Copyright NSPO 2007; GIS Data: GIST, USGS, CGIAR, NASA, GEBCO. Image processing, map created 11/04/2007 by UNOSAT.

Solomon Islands, , Quickbird, Ghizo Island Damage
Source: QuickBird (pan-sharpened), resolution 0.6m .
Acquired: 05/04/2007
Initial damage assessment, Ghizo Island using post-disaster QuickBird satellite imagery. 1) Building Damage (in red) for areas of likely damage to buildings and infrastructure; 2) Coastal Flooding (in yellow) for areas of identified as likely inundated and possibly eroded; and 3) Standing flood waters (in blue) for areas of visible water likely caused by the tsunami. Credit: Copyright: Digital Globe 2007; GIS Data: PDC, GIST, USGS, CGIAR, NASA. Image processing, map created 08/04/2007 by UNOSAT.

Solomon Islands, , Quickbird, Gizo Town Damage
Source: QuickBird (pan-sharpened), resolution 0.6m .
Acquired: 05/04/2007
Initial damage assessment, main town of Gizo (Ghizo Island) using post-disaster QuickBird satellite imagery. Tsunami-affected areas have been classified into 3 types: 1) Building Damage (in red) for areas of likely damage to buildings and infrastructure; 2) Coastal Flooding (in yellow) for areas of identified as likely inundated and possibly eroded; and 3) Standing flood waters (in blue) for areas of visible water likely caused by the tsunami. Credit: Copyright: Digital Globe 2007; GIS Data: PDC, GIST, USGS, CGIAR, NASA. Image processing, map created 07/04/2007 by UNOSAT.

Pre-Crisis imagery, Simbo Island Island
Source: Landsat-5, resolution 30m .
Acquired: 06/24/1989
Pre-crisis Landsat 7 image of Simbo Island as well as coastal areas 10 meters or less in elevation (marked in red) potentially affected by the tsunami (approximation; may not represent all low-lying coastal areas under this height). Credit: Credit: USGS 1989; GIS Data: GIST, USGS, CGIAR, NASA, GEBCO. Image processing, map created 06/04/2007 by UNOSAT.





Pre-Crisis imagery, Ghizo Island
Source: Landsat-5 (pan-sharpened), resolution 15m.
Acquired: 19/01/2001
Pre-crisis Landsat 7 image of Ghizo Island as well as coastal areas 10 meters or less in elevation (marked in red) potentially affected by the tsunami (approximation; may not represent all low-lying coastal areas under this height). Credit: Credit: USGS 2001; GIS Data: GIST, USGS, CGIAR, NASA, GEBCO. Image processing, map created 06/04/2007 by UNOSAT.

2004 Population Density, Solomon Islands, Islands; New
Source: SRTM dataset, resolution 90m.Acquired: 19/01/20012004 population density in earthquake and tsunami-affected areas of the Solomons, with two focus maps covering the New Georgia, Treasury and Shortland Island groups. Credit: Credits GIST, NGA, USGS, GEBCO 2004-2007. Image processing, map created 02/04/2007 by UNOSAT.


Potential Tsunami-AffectedAreas, Solomon Islands,Islands; New Georgia, Treasury and Shortland groups
Source: SRTM dataset; Landscan 2004, resolution 90m.
Acquired: Areas 10 meters and less in elevation potentially affected by the tsunami along the coast of the New Georgia and Treasury Islands, Solomon Islands. Credit: Credits GIST, NGA, USGS, GEBCO 2004-2007. Image processing, map created 02/04/2007 by UNOSAT.



2004 Population Density, Coastal Areas, Choiseul Island
Source: SRTM dataset; Landscan 2004 , resolution 90m (SRTM).
Acquired:
Top: areas 10 meters and less in elevation (marked in red) potentially affected by the tsunami along the coast of Choiseul Island. Bottom: estimated population density in people per square km. in 2004, Choiseul Island. Credit: Credits: GIS: GIST, NGA, USGS, GEBCO 2004-2007. Image processing, map created 03/04/2007 by UNOSAT.

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