preliminary co-seismic landslide inventory map for bahía...
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Bahía de Caráquez
80°24'0"W
80°24'0"W
0°40'0
"S
0°40'0
"S
Preliminary Co-seismic Landslide Inventory Map for Bahía de Caráquez, Ecuador
0 1 20.5km
Interpretation
International Charter Disaster Activation 564, coordinated byUNOSAT.This inventory was prepared in rapid mapping mode using acombination of satellite image interpretation and sourcinginformation from news reports and crowdsourcing.No liability concerning the content or use thereof is assumed by theproducer. Product published 25 April 2016 and designed forviewing at A0 paper size.
Data sources
This satellite image interpretation shows a landslide inventorymap produced by the British Geological Survey. The scale ofmapping was between 1:1,000 and 1:10,000 and the satelliteimage resolution is 0.5 m. Insets show detailed mapping.Some 475 landslides were identified in the Bahía de Caráquezarea; 395 translational/falls, 9 rotational, 43translational/rotational, and 26 dominated by liquefaction (mainlyof tidal deposits). Many events occur at the top of the slope(topographic amplification). 377 landslides (79%) have nodiscernible impact; 41 landslides affect at least part of a road; 7potentially affect houses. Liquefaction of tidal deposits resulted infailure of dikes in 3 locations, with dike stability affected at 15other locations. This inventory requires field verification.
WGS84 Geographic (DMS)Geographical system: µCartographic information
Framework
Satellite data:
Vector data:Cities, Boundaries © OpenStreetMap
Pleiades © CNES 2016, Distribution Airbus DS
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Puyo
Tena
Macas
Quito
Ibarra
Tulcan
Ambato
RiobambaBabahoyo
Guaranda
Guayaquil
Esmeraldas
La TacungaPortoviejo
Ecuador
Colombia
Legend
Disaster coverage by the InternationalCharter 'Space and Major Disasters'. Formore information on the Charter, which isconcerned with assisting the disaster relieforganizations with multisatellite data,please visit www.disasterscharter.org
Contact Information:[email protected]
24/7 Hotline: +41 75 411 4998www.unitar.org/unosat
Contact Information:[email protected]
www.bgs.ac.uk
(Imagery acquired 19 April 2016)
\ EpicenterDominant Landslide Type
Liquefaction, flow
RotationalTranslational
Translational, rotational" Town