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Earthquake, Tsunami in the Solomon Islands

Tuesday, 03 April 2007

Type of Event:
Earthquake, Tsunami
Location of Event:
Solomon Islands
Date of Charter Activation:
03/04/2007
Charter Requestor:
UNOOSA
Project Management:

Description of the 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.  

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.

Copyright: CNES 2007; GIS Data: GIST, USGS, CGIAR, NASA, GEBCO Image processing, map created 13/04/2007 by UNOSAT.

2004 Population Density, Solomon Islands, Islands; New Georgia, Treasury and Shortland groups

Source: SRTM dataset, resolution 90m.
Acquired: 19/01/2001 2004 population density in earthquake and tsunami-affected areas of the Solomons, with two focus maps covering the New Georgia, Treasury and Shortland Island groups.

Copyright: 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.

Copyright: Credits: GIS: GIST, NGA, USGS, GEBCO 2004-2007 Image processing, map created 03/04/2007 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.

Copyright: CNES 2007; GIS Data: GIST, USGS, CGIAR, NASA, GEBCO Image processing, map created 12/04/2007 by UNOSAT.

Formosat-2 image, Kolombangara Island

Source: 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.

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.

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.

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).

Copyright: 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).

Copyright: Credit: USGS 2001; GIS Data: GIST, USGS, CGIAR, NASA, GEBCO Image processing, map created 06/04/2007 by UNOSAT.

Potential Tsunami-Affected Areas, 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.

Copyright: Credits GIST, NGA, USGS, GEBCO 2004-2007 Image processing, map created 02/04/2007 by UNOSAT.