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Multitud de centros educativos en San José, Heredia y Alajuela que se verían efectadas con espesores de 1 mm, e incluso caería ceniza en Cartago, por una erupción de cenizas a las 11 a. m. de 8 km de altura

Many educational centers in San José, Heredia and Alajuela that would be affected with thicknesses of 1 mm, and ash would even fall in Cartago, due to an eruption of ash at 11 a. m. 8 km high

Irazú, Costa Rica, 2021

Figure 6.31 in: Alvarado, G.E., Campos-Durán, D., Brenes-André, J., Alpízar, Y., Núñez, S., Esquivel, L., Sibaja, J.P. & Fallas, B. (2021). Peligro Volcánico del Irazú, Costa Rica. Comisión Nacional de Prevención de Riesgos y Atención de Emergencias (CNE). Deciembre 2021.



This map was produced by an official agency, but may not be the most recent, most complete, or main operational map. For the current operational hazard map, please consult the proper institutional authorities.


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Map Set

Alvarado, G.E., Campos-Durán, D., Brenes-André, J., Alpízar, Y., Núñez, S., Esquivel, L., Sibaja, J.P. & Fallas, B. (2021). Peligro Volcánico del Irazú, Costa Rica. Comisión Nacional de Prevención de Riesgos y Atención de Emergencias (CNE). Deciembre 2021.
http://dx.doi.org/10.13140/RG.2.2.13642.44480

Other Maps In Set:

Map Data

Map ID4007
Hazard Process(es)Tephra fall
Hazard Zone PresentationSingle hazard: A single hazard process is represented on a main map panel
Temporal ScaleBackground, or long-term, map
Spatial ScaleRegional
Publication FormatFigure in a hazard assessment or mitigation plan
Zonation Method(s)Probabilistic modeling
Zonation Model(s)
Scenario(s) ConsideredDuration or timing; Season or weather; Size, VEI, or intensity
Hazard Zone Label(s)Estimated value or Hazard Impact Metric
Probability Definition(s)No probability definition was discernable from the map
PurposeLand-use planning: Intended to inform citing of facilities, building restrictions, resource management, and infrastructure development
AudienceLand-use planners, city planners, government officials, etc.
Language(s)Spanish
Basemap(s)Administrative boundaries (e.g. county, park, intl.)
Basemap overlay(s)
DiemsionalityPlanimetric (2D or map) view
Color SchemeRed to Green
Go to Global Volcanism Program page for Irazú →