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Ecuador Earthquake
Preliminary Satellite Based Damage
Assessment Report
25 April 2016
Prepared By UNITAR-UNOSAT
25 APRIL 2016
Geneva, Switzerland
UNITAR-UNOSAT 25 April 2016 Ecuador Earthquake | 16 April 2016
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Earthquake Ecuador
(16 April 2016)
Overview
On Saturday, April 16, 23:58 UTC (18:58 local time), a 7.8-magnitude earthquake struck offshore of the west coast of northern Ecuador, near the coastal town of Muisne, the worst since the 1949 Ambato Earthquake. The epicentre of the quake was along the Pacific coast in a sparsely populated region, approximately 170 km from the country’s capital city, Quito. More than 400 minor to major aftershocks have been recorded since Saturday (16 April 2016). The Government has declared a state of emergency in six coastal provinces (Guayas, Manabi, Santo Domingo, Los Rios, Esmeraldas and Galapagos). Hundreds of infrastructures, including hospitals and schools, and several residential and commercial areas have been damaged. According to the latest information available* through Ecuador’s Risk Management Office, there have been at least 587 deaths, 153 missing, 8,340 recorded injures, and 25,376 individuals who have sought shelter. (*statistics as available at the time of writing of this report)
UNOSAT Building Damage Assessment
UNITAR-UNOSAT on behalf of UN OCHA activated the International Charter on Space and Major Disasters on 17 April 2016 to assist with satellite based damage assessment covering Earthquake affected areas. Priority Areas of Interest (AOIs) for post-earthquake satellite imagery acquisition have been requested by UNOCHA based on Earthquake intensity areas provided by USGS as well as population exposure to M7.8 shaking zones. Within the first 12 hours of the Earthquake, on 17 April 2016, UNITAR-UNOSAT produced a preliminary population exposure. UNITAR-UNOSAT is also supporting UNOCHA, and UNDAC team deployed to earthquake affected areas with the overall coordination of satellite analysis done by UNIATAR/UNOSAT and European Commission’s Copernicus Emergency Management Service through GDACS’ Satellite Mapping and Coordination System (SMCS). Preliminary damage assessment was conducted by comparing the post disaster satellite images with available pre disaster images. All the completed, current and future mapping activities done by UNITAR-UNOSAT as well as other satellite mapping groups can be viewed through GDACS/SMCS. This report provides a summary of satellite based analysis undertaken by UNITAR-UNOSAT and European Commission’s Copernicus Emergency Management Service from 18 April to 22 April, according to availability of suitable post disaster satellite imagery. The extent of damage is categorized into three main levels – Destroyed, Severe Damage and Moderate Damage. Please note that the four damage level classes from Copernicus have been aggregated into three, to summarize the results. All the maps and products from UNOSAT are available at: http://www.unitar.org/unosat/maps/ECU and from Copernicus are available at: http://emergency.copernicus.eu/mapping/list-of-components/EMSR159. Combined satellite damaged assessment done by UNITAR-UNOSAT and Copernicus are also available through a LIVE WEB MAP.
UNITAR-UNOSAT 25 April 2016 Ecuador Earthquake | 16 April 2016
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Map of areas that have been analysed and the ones still in progress or planned for the coming days
The statistics below are from the areas covered by UNITAR-UNOSAT as well as Copernicus. The total analysed area is approximately 800 Square Kilometres. The most affected provinces are Manabi and Esmeraldas. The single most affected Pueblo is Muisine with 450 affected buildings. The summary of findings is given in details in Table1.
Damages within the Analysed Area
1,245 Total Number of
Affected Buildings
362
Buildings Destroyed
434 Buildings with Severe
Damage
449 Buildings with Moderate
Damage
UNITAR-UNOSAT 25 April 2016 Ecuador Earthquake | 16 April 2016
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Provincia Canton Parroquia Pueblo
Moderate Damage
Severe Damage
DestroyedGrand Total
Esm
eral
das
Atacames
Atacames Atacames 23 9 7 39 Sua Sua 1 1
Tonsupa Tonsupa 9 4 4 17
Esmeraldas Esmeraldas Esmeraldas 1 5 6
Tachina Tachina 1 1 2 Muisine Muisne Muisne 105 206 139 450
Ma
nab
i
Chone Chone Chone 36 20 17 73 Chone
(Alrededores)28 16 45 89
Manta Manta Jaramijo 1 1 2 Manta 29 10 6 45
Montecristi Jaramijo Jaramijo 1 3 4 Pedernales Pedernales Pedernales 30 38 57 125
Rocafuerte
Crucita Crucita 41 15 5 61 Crucita
(Alrededores) 2 2
Rocafuerte El Higueron 1 1 2 El Higueron
(Alredeores)2 2 4
Sucre
Bahia de Caraquez
Bahia de Caraque
34 21 24 79
Maurico 26 13 3 42 Mauricio
(Alrededores) 2 3 5
Charapoto
Canitas 2 4 2 8 Charapoto 9 13 5 27 El Pueblito 3 3 2 8 San Jacinto 3 4 4 11 San Jacinto
(Alrededores) 2 2 4
San Vicente San Vicente
33 47 27 107
Sa
nta
Ele
na
La Libertad La Libertad Santa Elena 6 1 7
Salinas
Anconcito Anconcito 1 1
Jose Luis Tamayo
Jose Luis Tamayo
6 2 8
La Libertad 1 1
Salinas Salinas 6 1 1 8 Salinas
(Alrededores) 1 1
Santa Elena
Santa Elena
Ballenita 1 1 Ballenita
(Alrededores) 4 1 5
449 434 362 1,245
Table1. Summary table of findings within the analysed areas. There are a total of 1,245 affected buildings, with 362 completely destroyed. It is to be noted that the administrative boundaries for "village" levels is obtained using
Wikimapia and falls under their specific terms of reference.
UNITAR-UNOSAT 25 April 2016 Ecuador Earthquake | 16 April 2016
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Example of Damages from 2016 Earthquake in Bahía de Caráquez
Pre-image collected from World View 2 Satellite (02 Dec 2013) and post-image collected from Pleiades Satellite (19 Apr 2016)
Population Exposure
UNITAR–UNOSAT also made an estimate of potential population living within the light to strong shake zones using the intensity data from USGS and population data from WorldPOP 2010 as of 17 April 2016.
15,445,999 Total population of Ecuador
12,952,545 Total population living within
Light to Strong Shake Zones
For a detailed report of population exposure, please refer: http://www.unitar.org/unosat/node/44/2383 The depiction and use of boundaries, geographic names and related data shown here are not warranted to be error-free nor do they imply official endorsement or acceptance by the United Nations. UNOSAT is a program of the United Nations Institute for Training and Research (UNITAR), providing satellite imagery and related geographic information, research and analysis to UN humanitarian and development agencies and their implementing partners. Please send feedback to UNITAR-UNOSAT.