SYMITHE , Steeve

The August 14th 2021 Mw 7.2 Nippes, Haiti, earthquake is the second major event to strike southern Haiti this century, 11 years after the devastating Mw7.0 in 2010. The large magnitude earthquake and the possibility to access seismic data recorded since 2019 led us to investigate the variability of the site resonance frequency with time and...

The Ayiti-séismes platform monitors in real time the seismicity occurring in Haiti. To do so, it uses data from 20 Raspberry Shake stations, low-cost seismic stations installed at hosts in Haiti, but also data from stations belonging to seismological networks in neighboring countries. Since its start in August 2019, Ayiti-seismes has located...

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...

International audience

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)...

The disastrous situation in Haiti, marked by escalating insecurity, failing institutions, and widespread gang control in the capital, severely hampers effective management of the country's natural hazards both now and in the foreseeable future. Yet earthquakes – or hurricanes and floods – are not going to stop. But at the moment, the Haitian...

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...