ST FLEUR , Sadrac

In order to help estimating the seismic ground motion expected in the Port-au-Prince area (Haiti), we characterize local site effects, pointing out the seismic waves trapped in the loose layer of Cul-de-Sac basin, and provide realistic synthetic accelerograms for an hypothetical future earthquake.To this end, we propose to analyze signals from...

The development of low-cost Raspberry Shake (RS) seismological stations capable of providing scientifically relevantseismological information in near-real time has enabled a Haitian citizen network to be set up as part of a participatoryseismology experiment that Started in July 2019. This network currently operates 12 RS instruments. These are...

On August 2021, a Mw 7.2 earthquake struck Haiti's southern peninsula, eleven years after the devastating Mw 7 January 12, 2010 earthquake that occurred near Port au Prince. This large event, called the Nippes earthquake, has been recorded locally by the citizen network composed of low-cost raspberry shake stations. A precise analysis of the...

Abstract Seismic monitoring in Haiti is currently provided by a mixed network of low-cost Raspberry Shake (RS) seismic stations hosted by citizens, and short-period and broadband stations located mainly in neighboring countries. The level of earthquake detection is constantly improving for a better spatio-temporal distribution of seismicity as...

The 14 August 2021 Mw 7.2 Haiti earthquake struck a decade after the devastating 2010 event within the Enriquillo Plantain Garden Fault Zone in the Southern peninsula of Haiti. Space geodetic results show that the rupture is composed of both left-lateral strike-slip and thrust motion, similar to the 2010 rupture, but aftershock locations from a...

ABSTRACT The 14 August 2021 Mw 7.2 Haiti earthquake struck 11 yr after the devastating 2010 event within the Enriquillo Plantain Garden (EPG) fault zone in the Southern peninsula of Haiti. Space geodetic results show that the rupture is composed of both left-lateral strike-slip and thrust motion, similar to the 2010 rupture; but aftershock...

Since July 2019, The Ayiti-seismes citizen network (ASCN) has been detecting and locating, in real time, earthquakes occurring in Haiti of magnitude ≥ 2.5. ASCN is based on both Seiscomp3 modules and Géoazur in-house software, and uses seismic signals from (1) low-cost, low-maintenance Raspberry Shake (RS) instruments installed in Haiti and (2)...

Le 14 Aout 2021, un séisme de magnitude 7.2 frappe le sud d'Haiti, cause la mort de 2500 personnes et la destruction de 53000 maisons. Ce séisme et ses répliques sont bien enregistrés par le réseau sismo-citoyen installé depuis 2019 en Haiti. Les données nous permettent de caractériser le choc principal (PGA de 0.32 g mesuré à 21 km) et de...