Publication Date:
2017-04-04
Description:
In the last four decades, Campi Flegrei caldera has been the world’s most active
caldera characterized by intense unrest episodes involving huge ground deformation and
seismicity, but, at the time of writing, has not culminated in an eruption. We present a careful
review, with new analyses and interpretation, of all the data and recent research results. We
deal with three main problems: the tentative reconstruction of the substructure; the modelling
of unrest episodes to shed light on possible pre-eruptive scenarios; and the probabilistic
estimation of the hazards from explosive pyroclastic products. The results show, for the first
time at a volcano, that a very peculiar mechanism is generating episodes of unrest, involving
mainly activation of the geothermal system from deeper magma reservoirs. The character and
evolution of unrest episodes is strongly controlled by structural features, like the ring-fault
system at the borders of the caldera collapse. The use of detailed volcanological, mathematical
and statistical procedures also make it possible to obtain a detailed picture of eruptive hazards
in the whole Neapolitan area. The complex behaviour of this caldera, involving interaction
between magmatic and geothermal phenomena, sheds light on the dynamics of the most
dangerous types of volcanoes in the world.
Description:
Published
Description:
25-45
Description:
open
Keywords:
NONE
;
04. Solid Earth::04.08. Volcanology::04.08.08. Volcanic risk
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
Format:
684147 bytes
Format:
application/pdf
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