Adams, K

Aktas, Y

Black, J

Di Sarno, L

Dönmez, K

Foroughnia, M

Giardina, G

Kijewski-Correa, T

Macabuag, J

Macchiarulo, V

Milillio, P

Ojaghi, M

Orfeo, A

Penney, C

Pugliese, F

Whitworth, M

English

UCL Discovery

EGU22-10192https://doi.org/10.5194/egusphere-egu22-10192EGU General Assembly 2022© Author(s) 2022. This work is distributed underthe Creative Commons Attribution 4.0 License.Remote Reconnaissance Mission to the 14th August 2021 HaitiEarthquake; remote sensing and building damage assessments Michael Whitworth1, Giorgia Giardina2, Camilla Penney3, Luigi Di Sarno4, Keith Adams5, TracyKijewski-Correa6, Josh Macabuag7, Fatemeh Foroughnia2, Valentina Macchiarulo2, Mobin Ojaghi8,Alessandra Orfeo9, Francesco Pugliese4, Kökcan Dönmez10, Jacob Black11, and Yasemin d Aktas121AECOM2Delft University of Technology3University of Cambridge4University of Liverpool5Brunel University6University of Notre Dame7World Bank / Independent8Independent Professional9University of Strathclyde10Boğaziçi University11akt II12University College LondonPost-earthquake reconnaissance missions are critical to understand the event characteristics,identify building and infrastructure vulnerabilities, and improve future construction practice.However, in-field missions can present logistic and safety challenges that do not make them viablein every post-disaster scenario. Remote sensing technique can be used to rapidly collect a largeamount information that can be used to enrich the post-event learning process. While thepossibility to deploy teams in the field remain a valuable asset for an integrated understanding oftechnical and socio-economic factors, a mix of remote and in-field reconnaissance activities can bea way forward in post-disaster management.This work presents the results of a hybrid mission mobilised by the Earthquake Engineering FieldInvestigation Team (EEFIT) after the 2021 Haiti earthquake. On 14 August 2021, a 7.2 magnitudeearthquake struck the Tiburon Peninsula in the Caribbean nation of Haiti, approximately 150kmeast of the capital Port au Prince. The event was followed by numerous aftershocks up tomagnitude 5.7, and tiggered over 1000 landslides. Over 2000 people lost their lives, with over15,000 injured and over 137,000 houses damaged or destroyed. The estimated economic impact isof the order of US$1.6 billion. Due the complex political and security situation in Haiti, coupledwith the global pandemic, a full in field mission was not considered feasible, so a hybrid missionwas designed instead.First, open-source information was collected and used to characterise the seismic event, analysethe strong ground motion and compare to established national and international earthquakecodes and standard. Second, remote sensing techniques including Interferometric SyntheticAperture Radar (InSAR) and Optical/Multispectral imagery were used to understand theearthquake mechanism, the ground displacement distribution and the possibility to detectlandslide on a regional scale. The general applicability of remote sensing technique in the contextof post disaster assessment was also evaluated. Finally, the earthquake impact on differentbuilding typologies in Haiti was investigated through the damage assessment of over 2000buildings comprising schools, hospitals, churches and housing. This was done in collaboration withthe Structural Extreme Events Reconnaissance (StEER) team, who mobilised a team of local non-experts to rapidly record building damage.This talk summarises the mission setup and findings, and discusses the benefits of and difficultiesencountered during this hybrid reconnaissance.Powered by TCPDF (www.tcpdf.org)

Remote Reconnaissance Mission to the 14th August 2021 Haiti Earthquake; remote sensing and building damage assessments

https://discovery.ucl.ac.uk/10149790/1/EGU22-10192-print.pdf

Remote Reconnaissance Mission to the 14th August 2021 Haiti Earthquake; remote sensing and building damage assessments

Abstract

Similar works

Full text

Available Versions

UCL Discovery