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Representation of 6 likely scenarios using Tephra 2: represented are the ash dispersion and the thickness of the deposits, with easterly winds and without prevailing winds

Ol Doinyo Lengai, Tanzania, 2021

Figure 9 in: Rey, T., Leone, F., Defossez, S., Gherardi, M., & Parat, F. (2021). Volcanic hazards assessment of Ol Doinyo Lengai in a data scarcity context (Tanzania). Territorium, (28 (II)), 69-81.



This hazard map is the result of scientific research and was published in academic literature. It is presented here to serve as an example of the map type or the map-making methodology. It is NOT the official, operational map. For the current operational hazard map, please consult the proper institutional authorities.


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Map Set

Rey, T., Leone, F., Defossez, S., Gherardi, M., & Parat, F. (2021). Volcanic hazards assessment of Ol Doinyo Lengai in a data scarcity context (Tanzania). Territorium, (28 (II)), 69-81.
https://doi.org/10.14195/1647-7723_28-2_6

Other Maps In Set:

Map Data

Map ID4432
Hazard Process(es)Tephra fall
Hazard Zone PresentationSingle hazard: A single hazard process is represented on a series of small map panels of similar sizes
Temporal ScaleBackground, or long-term, map
Spatial ScaleVolcano and surrounding area
Publication FormatFigure in a journal article
Zonation Method(s)Probabilistic modeling
Zonation Model(s)
Scenario(s) ConsideredSeason or weather; Specific past eruption
Hazard Zone Label(s)Estimated value or Hazard Impact Metric
Probability Definition(s)No probability definition was discernable from the map
PurposeScientific interest: Intended for scientific research and general scientific interest; usually published in academic journals
AudienceScientists (usually in scientific publication)
Language(s)English; Portuguese
Basemap(s)Hillshade
Basemap overlay(s)
DiemsionalityPlanimetric (2D or map) view
Color SchemeRed to Yellow
Volcanic Alert Level System
Go to Global Volcanism Program page for Ol Doinyo Lengai →