A simplified hazard zonation map derived from lava flow inundation simulations based on three extended fissure scenarios
Harrat Lunayyir, Saudi Arabia, 2026
Figure 21 in: Németh, K., Sowaigh, A., Ashor, M., Toni, M., & Sokolov, V. (2026). Volcanic Hazard Assessment of a Monogenetic Volcanic Field with Sporadic and Limited Information: Deterministic Approach for Harrat Lunayyir, Saudi Arabia. GeoHazards, 7(1), 33. https://doi.org/10.3390/geohazards7010033
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.
Click on image for full-size map.
Map Set
Németh, K., Sowaigh, A., Ashor, M., Toni, M., & Sokolov, V. (2026). Volcanic Hazard Assessment of a Monogenetic Volcanic Field with Sporadic and Limited Information: Deterministic Approach for Harrat Lunayyir, Saudi Arabia. GeoHazards, 7(1), 33. https://doi.org/10.3390/geohazards7010033
https://doi.org/10.3390/geohazards7010033
Other Maps In Set:
- Eruption scenario with the vent opening adjacent to the Target Volcano
- Cone formation and lava effusion from vent 1 in the NW outskirts of the Option 4 area
- Vent opening simulation in the SW part of the Option 4 area
- Fissure 1 simulation and hazard impact characterization
- Fissure 2 simulation involves a fissure opening approximately 2 km long, with the same strike direction as the vent alignments identified near the Target Volcano
- An extensive fissure eruption along the SW edge of the Option 4 area could cause significant destruction and landscape changes
- The total lava inundation exclusion zone map shows the areas where the maximum expected lava flow inundation would occur
- Ash fall simulation using the USGS Ash3D tool
- An area where 2 mm ash fall may occur if the vent opening is anywhere along the marked long fissure
- A map shows the lava flow risk in the area
Simplified, modified, or derived from:
- Fissure 1 simulation and hazard impact characterization
- Fissure 2 simulation involves a fissure opening approximately 2 km long, with the same strike direction as the vent alignments identified near the Target Volcano
- An extensive fissure eruption along the SW edge of the Option 4 area could cause significant destruction and landscape changes