@article{fdi:010086954,
  title = {{S}ite effects observations and mapping on the weathered volcanic formations of {M}ayotte {I}sland},
  author = {{R}oulle, {A}. and {B}aillet, {M}. and {B}ertil, {D}. and {C}ornou, {C}{\'e}cile},
  editor = {},
  language = {{ENG}},
  abstract = {{S}ince the 2000s, local seismic hazard studies have shown that {M}ayotte {I}sland presented superficial geological formations prone to lithological site effects. {T}he seismic sequence initiated in {M}ay 2018 confirmed the importance of such effects, both in terms of intensity and spatial extension. {T}he analysis of the recorded strong motions showed that weathered volcanic formations are prone to significant site effects with mean amplification factors for peak ground acceleration ({PGA}) between 1.4 and 4.9 and that a complex combination of lithological and topographic site effects is in action. {W}e thus implement a regional scale map of site effects for the fast calculation of strong motion and damage maps for crisismanagement purposes. {W}e also provide a first estimate of key site parameters for eight stations: surface geology, resonance frequency, an amplification factor proxy for {PGA}, a {VS}, 30 value, if available, and an estimated {EC}8 soil class.},
  keywords = {{S}ite effects ; {W}eathering ; {M}ayotte ; {S}eismic hazard ; {S}eismic risk ; {V}olcanic formations ; {MAYOTTE}},
  booktitle = {},
  journal = {{C}omptes {R}endus {G}eoscience},
  volume = {354},
  numero = {2 ({N}o sp{\'e}cial)},
  pages = {317--341},
  ISSN = {1631-0713},
  year = {2022},
  DOI = {10.5802/crgeos.151},
  URL = {https://www.documentation.ird.fr/hor/fdi:010086954},
}