Kelly Guerrier

University of Haiti

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Dominique Boisson

Hospices Civils de Lyon

Sophia Ulysse

University of Haiti

Hans‐Balder Havenith

University of Liège

Marie‐Hélène Cormier

University of Rhode Island

Anne-Sophie Mreyen

University of Liège

Steeve Symithe

University of Haiti

A. Braun

University Hospital in Halle

R. Momplaisir

University of Haiti

Newdeskarl Saint-Fleur

University of Haiti

Karl-Henry Victor

University of Haiti

Cooperative Institutions

Centre National de la Recherche Scientifique

University of Haiti

Institut de Recherche pour le Développement

Géoazur

Université Côte d'Azur

Observatoire de la Côte d’Azur

University of Liège

University of Rhode Island

Institut de physique du globe de Paris

Laboratoire de Géologie de l’École Normale Supérieure

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Earthquake-induced landslides in Haiti: analysis of seismotectonic and possible climatic influences

Natural hazards and earth system sciences (2022)

Hans‐Balder Havenith Kelly Guerrier Romy Schlögel A. Braun Sophia Ulysse

Abstract. First analyses of landslide distribution and triggering factors are presented for the region affected by the 14 August 2021 earthquake (Mw=7.2) in the Nippes Department, Haiti. Landslide mapping was mainly carried out by comparing pre- and post-event remote imagery (∼0.5–1 m resolution) available on Google Earth Pro® and Sentinel-2 (10 m resolution) satellite images. The first covered about 50 % of the affected region (for post-event imagery and before completion of the map in January 2022), and the latter were selected to cover the entire potentially affected zone. On the basis of the completed landslide inventory, comparisons are made with catalogs compiled by others both for the August 2021 and the January 2010 seismic events, including one open inventory (by the United States Geological Survey) that was also used for further statistical analyses. Additionally, we studied the pre-2021 earthquake slope stability conditions. These comparisons show that the total number of landslides mapped for the 2021 earthquake (7091) is larger than the one recently published by another research team for the same event but slightly smaller than the number of landslides mapped by a third research team. It is also clearly smaller than the one observed by two other research teams for the 2010 earthquake (e.g., 23 567, for the open inventory). However, these apparently fewer landslides triggered in 2021 cover much wider areas of slopes (>80 km2) than those induced by the 2010 event (∼25 km2 – considering the open inventory). A simple statistical analysis indicates that the lower number of 2021 landslides can be explained by the missing detection of the smallest landslides triggered in 2021, partly due to the lower-resolution imagery available for most of the areas affected by the recent earthquake; this is also confirmed by an inventory completeness analysis based on size–frequency statistics. The much larger total area of landslides triggered in 2021, compared to the 2010 earthquake, can be related to different physical reasons: (a) the larger earthquake magnitude in 2021, (b) the more central location of the fault segment that ruptured in 2021 with respect to coastal zones, (c) and possible climatic preconditioning of slope instability in the 2021 affected area. These observations are supported by (1) a new pre-2021 earthquake landslide map; (2) rainfall distribution maps presented for different periods (including October 2016 – when Hurricane Matthew had crossed the western part of Haiti), covering both the 2010 and 2021 affected zones; and (3) shaking intensity prediction maps.

10.5194/nhess-22-3361-2022

Cite

Citations (15)

Earthquake-induced landslides in Haiti: analysis of seismotectonic and possible climatic influences

Hans‐Balder Havenith Kelly Guerrier Romy Schlögel A. Braun Sophia Ulysse

Abstract. First analyses of landslide distribution and triggering factors are presented for the region affected by the August, 14, 2021, earthquake (Mw=7.2) in the Nippes Department, Haiti. Landslide mapping was mainly carried out by comparing pre- and post-event remote imagery (~0.5–1-m resolution) available on Google Earth Pro® and Sentinel-2 (10-m resolution) satellite images. The first covered about 50 % of the affected region (for post-event imagery and before completion of the map in January 2022), the latter were selected to cover the entire potentially affected zone. On the basis of the completed landslide inventory, comparisons are made with catalogues compiled by others both for the August 2021 and the January 2010 seismic events, including one open inventory (by the United States Geological Survey) that was also used for further statistical analyses. Additionally, we studied the pre-2021 earthquake slope stability conditions. These comparisons show that the total number of landslides mapped for the 2021 earthquake (7091) is larger than the one recently published by another research team for the same event, but it is also clearly smaller than the one observed by two other research teams for the 2010 earthquake (e.g., 23,567, for the open inventory). However, these apparently fewer landslides triggered in 2021 cover much wider areas of slopes (>80 km2) than those induced by the 2010 event (~25 km2 – considering the open inventory). A simple statistical analysis indicates that the lower number of 2021-landslides can be explained by the missing detection of the smallest landslides triggered in 2021, partly due to the lower resolution imagery available for most of the areas affected by the recent earthquake; this is also confirmed by an inventory completeness analysis based on size-frequency statistics. The much larger total area of landslides triggered in 2021, compared to the 2010 earthquake, can be related to different physical reasons: a) the larger earthquake magnitude in 2021; b) the more central location of the fault segment that ruptured in 2021 with respect to coastal zones; c) and possible climatic preconditioning of slope instability in the 2021-affected area. These observations are supported by (1) a new pre-2021 earthquake landslide map, (2) rainfall distribution maps presented for different periods (including October 2016 – when Hurricane Matthew had crossed the western part of Haiti), covering both the 2010 and 2021 affected zones, as well as (3) shaking intensity prediction maps.

Land Cover

10.5194/nhess-2022-176

Cite

Citations (4)

Haiti-Drill: an amphibious drilling project workshop

Scientific Drilling (2020)

Chastity Aiken Richard Wessels Marie‐Hélène Cormier Frauke Klingelhoëfer Anne Battani

Abstract. The Haiti region – bounded by two strike-slip faults expressed both onshore and offshore – offers a unique opportunity for an amphibious drilling project. The east–west (EW)-striking, left lateral strike-slip Oriente–Septentrional fault zone and Enriquillo–Plantain Garden fault zone bounding Haiti have similar slip rates and also define the northern and southern boundaries of the Gonâve Microplate. However, it remains unclear how these fault systems terminate at the eastern boundary of that microplate. From a plate tectonic perspective, the Enriquillo–Plantain Garden fault zone can be expected to act as an inactive fracture zone bounding the Cayman spreading system, but, surprisingly, this fault has been quite active during the last 500 years. Overall, little is understood in terms of past and present seismic and tsunami hazards along the Oriente–Septentrional fault zone and Enriquillo–Plantain Garden fault zone, their relative ages, maturity, lithology, and evolution – not even the origin of fluids escaping through the crust is known. Given these unknowns, the Haiti-Drill workshop was held in May 2019 to further develop an amphibious drilling project in the Haiti region on the basis of preproposals submitted in 2015 and their reviews. The workshop aimed to complete the following four tasks: (1) identify significant research questions; (2) discuss potential drilling scenarios and sites; (3) identify data, analyses, additional experts, and surveys needed; and (4) produce timelines for developing a full proposal. Two key scientific goals have been set, namely to understand the nature of young fault zones and the evolution of transpressional boundaries. Given these goals, drilling targets were then rationalized, creating a focus point for research and/or survey needs prior to drilling. Our most recent efforts are to find collaborators, analyze existing data, and to obtain sources of funding for the survey work that is needed.

Lithology

10.5194/sd-28-49-2020

Cite

Citations (0)

A Precise Gravity Tide Model for Port-au-Prince in Haiti

Zenodo (CERN European Organization for Nuclear Research) (2023)

Olivier Francis Kelly Guerrier Renaldo Sauveur

Port (circuit theory)

10.5281/zenodo.7870010

Cite

Citations (0)

Site Effect Potential in Fond Parisien, in the East of Port-au-Prince, Haiti

Geosciences (2021)

Sophia Ulysse Dominique Boisson Valmy Dorival Kelly Guerrier Claude Préptit

In the frame of a Belgo-Haitian cooperation project (PIC 2012–2016), a study of the local seismic hazard was performed in Fond Parisien, an area located on the foothills of the “Massif de la Selle”, along the easternmost portion of the Enriquillo Plantain Garden Fault (EPGF). The H/V Spectral Ratio (HVSR) technique was applied to study the resonance frequency of the target areas and the azimuth of the wave field. The amplification factors were estimated using Standard Spectral Ratios obtained from earthquakes recorded by a temporary seismic network. Using the Multichannel Analysis of Surface Waves method, the seismic properties of the shallow layers were investigated. Then, the results were compared to local Electrical Resistivity Tomography data. These results highlight, in the central part of Fond Parisien, an E-W zone of low velocities ranging from 200 m/s to 450 m/s and low resistivities between 1 Ωm and 150 Ωm, due both to tectonic folding of the rocks and to the presence of sediment filling in the eastern part. The latter is marked, in most of its sites, by resonances at one or more frequencies ranging from 0.7 Hz to 20 Hz. Infiltration and storage of brackish water in the underground layers also contribute to the low resistivity values. With the noise HVSR data, we also evidenced a significant influence of the EPGF on the main orientation of the seismic wavefield as in the vicinity of this fault, the azimuths are parallel to the orientation of the fault. Overall, the results also show greater potential for site effects in the block formed by the sedimentary basin and strong amplification of the seismic ground motion for the sites bordering the basin to the north and west. We interpret the amplification in the north and south-west as probably originating from topographic irregularities locally coupled with sediment deposits, while in the center of the western part, the site effects could be explained by the presence of folds and related weakened and softened rocks. By the integration of several geophysical methods, we could distinguish areas where it is possible to build more safely. These zones are located in the northern part and encompass Quisqueya Park and neighboring areas as well as the village “La Source” in the southern part. In the rest of Fond Parisien, i.e., in the more central and eastern parts, buildings should be erected with caution, taking into account the nearby presence of the EPGF and the influence of fine sediments on the amplification of the seismic motion.

Foothills

Massif

10.3390/geosciences11040175

Cite

Citations (4)

Impact of mining waste effluents on the shear strength of compacted lateritic soils used in waste containment dikes (DR Congo)

International journal of innovation and applied studies (2016)

Gustave Mukoko Kalenda Y. Kiyukeno Kitwanyoka G. Lile Amisi G. Mukena Mwaba Daniel Verastegui

In most cases of failure of dikes, hydraulic fracturing is the evoked main cause. Severalauthors analyzed the properties of soils under mechanic and hydric solicitation. However, these analyses do nottake into account the chemical influence of the liquid percolating the matrix of soil. This article analyzes theimpact of the liquid effluents emanating from ore concentrators on the behavior of compacted lateritic soils inwaste containment dikes. It emphasizes the shear strengthparameters of the compacted laterites andpercolated by liquid effluents with different chemical nature. Demineralized water was taken as prototype. The tests include the shear strength measures consolidated drained and undrainedwhen thespecimens were imbibed with the different fluids. The results show that acid and basic liquid effluents affect the shear strength parameters and the strainmodulesareappreciably modified. The effect of the initial suctions and the density before the imbibition was alsoinvestigated, what reveals that the fall of shear strength parameters of lateritic soils, on wetting path (during the passage of the state partially saturated in the saturated state), is all the rougher as the moisture content of implementation during compaction is widely lower than the optimum water content. However, structural changes caused by initialsaturation and density of specimens seem to be more important for explaining the volumetric and deviator behavior than chemical interaction.

Imbibition

Dike

Source

Cite

Citations (0)

STATE OF THE ART OF RESEARCH WITHIN HEI

HAL (Le Centre pour la Communication Scientifique Directe) (2020)

Évens Emmanuel Renauld Govain Raulin Lincifort Cadet Kelly Guerrier Francklin Benjamin

Source

Cite

Citations (0)

Coregionalization models of geophysical data for site effect assessment at Anse-à-Veau, Haiti

Hans‐Balder Havenith Valmy Dorival Kelly Guerrier Sophia Ulysse

The multivariate generalization of the kriging, in geostatistical analysis, called cokriging makes it possible to take advantage of the relationships between several variables. The information carried by a secondary variable may improve the precision of the estimation of the main variable. The multivariate structural model between the variables is then built from the spatial joint analysis of the data which can be realized by coregionalization linear models.  The present study aims at assessing the site effects from the results of multivariate analysis of seismic data collected at Anse-à-Veau, a municipality in the Nippes Department of Haiti, characterized by a relatively high seismic activity – during the measurement campaign in August 2021 this region had been hit by the 2021 Nippes Earthquake. The surveys carried out include ambient noise and seismological recordings, seismic tests as well as electrical resistivity measurements along profiles. The two first were processed, respectively, in terms of Horizontal to Vertical Spectral Ratios (HVSR) and Standard Spectral Ratios (SSR), the seismic tests both as Seismic Refraction Tomography (SRT) and by Multichannel Analysis of Surface Waves (MASW) and the last measurements as Electrical Resistivity Tomography (ERT). In total, more than 100 HVSR recordings, 7 115m-long seismic profiles and 8 ERT profiles have been completed. All related results were then compiled within one multi-data (including also geological, geomorphic and geomechanical information) 3D geomodel and submitted to a spatial analysis. The coregionalization modelling applied within this analysis is expected to take advantage of the relationships between the different type of seismic data in order to better estimate the potential site effects in the study area.Keywords: coregionalization model, site effects, multi-geophysics, geomodelling, Haiti.    

Electrical Resistivity Tomography

Ambient noise level

10.5194/egusphere-egu23-3242

Cite

Citations (0)

Windward Passage and Jamaica Channel: New Insights About two Tectonic Gateways of the Northern Caribbean

2014 AGU Fall Meeting (2014)

Marie‐Hélène Cormier R. E. Blake Dwight F. Coleman Kelly Guerrier N. Raineault

Source

Cite

Citations (0)

Crustal structure of western Hispaniola (Haiti) from a teleseismic receiver function study