Recent Activity of Nyiragongo (Democratic Republic of Congo): New Insights From Field Observations and Numerical Modeling
Résumé
Nyiragongo volcano is known for its active lava lake and for socioeconomic issues arising from
future possible eruptive events having major impacts on the community living in the Virunga region.
The 2020 eld expedition inside the summit crater has allowed the collection of unprecedented eld
observations to state on the current activity. Since the February 2016 intracrater event, the crater oor level
has been rising much faster than during the 2010–2016 period. The current activity is reminiscent of the
1970–1972 and 1994–1995 periods preceding the lava lake drainage events in 1977 and 2002. Numerical
simulations, successfully validated with data over the past 30 years, show that the rising of the crater oor
could slow down in the next months/years and reach a critical equilibrium. Based on the past eruptive
history and on the current activity, a ank eruption in the March 2024 to November 2027 interval could be a
possible scenario.
Domaines
Volcanologie
Origine : Fichiers produits par l'(les) auteur(s)
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