@article{fdi:010088811, title = {{H}azard assessment and monitoring of {E}cuadorian volcanoes : challenges and progresses during four decades since {IG}-{EPN} foundation}, author = {{H}idalgo, {S}. and {B}ernard, {B}. and {M}othes, {P}. and {R}amos, {C}. and {A}guilar, {J}. and {A}ndrade, {D}. and {S}amaniego, {P}ablo and {Y}epes, {H}. and {H}all, {M}. and {A}lvarado, {A}. and {S}egovia, {M}. and {R}uiz, {M}. and {R}amón, {P}. and {V}aca, {M}.}, editor = {}, language = {{ENG}}, abstract = {{T}he {I}nstituto {G}eofisico ({IG}-{EPN}) was created in 1983 by faculty of the {E}scuela {P}olitecnica {N}acional, a public university in {Q}uito, {E}cuador, with the objective of assessing volcanic hazard in the country. {S}ince then, the {IG}-{EPN} has established and developed an instrumental monitoring network and from 1999 has faced the eruption of five continental-arc volcanoes ({G}uagua {P}ichincha, {T}ungurahua, {R}eventador, {C}otopaxi, and {S}angay) which displayed varied hazards, eruptive dynamics, eruption durations, and socio-economic contexts. {A}t the same time, mainly effusive eruptions took place in {G}alapagos archipelago, which has undergone an increase in local population over the last two decades and hence in the risk posed by volcanic eruptions. {T}he outstanding handling of these volcanic crises was the reason why {IG}-{EPN} was granted with the 2020 {V}olcanic {S}urveillance and {C}risis {M}anagement {IAVCEI} {A}ward. {N}ow, the {IG}-{EPN} manages a country-wide network of about 500 instruments to monitor both volcanic and tectonic activity with a highly qualified staff of 80 people. {T}his manuscript describes the history of {IG}-{EPN}, the main volcanic hazard studies and resulting hazard maps; the instrumental networks; and the volcanic crises that the {IG}-{EPN} faced during the last forty years.}, keywords = {{IG}-{EPN} ; {V}olcano observatory ; {IAVCEI} {V}olcanic {S}urveillance and {C}risis ; {M}anagement {A}ward ; {H}azard assessment ; {E}cuador ; {EQUATEUR}}, booktitle = {}, journal = {{B}ulletin of {V}olcanology}, volume = {86}, numero = {1}, pages = {4 [20 ]}, ISSN = {0258-8900}, year = {2023}, DOI = {10.1007/s00445-023-01685-6}, URL = {https://www.documentation.ird.fr/hor/fdi:010088811}, }