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Authors: Isaia, R.*
Marianelli, P.*
Sbrana, A.*
Title: Caldera unrest prior to intense volcanism in Campi Flegrei (Italy) at 4.0 ka B.P.: Implications for caldera dynamics and future eruptive scenarios
Title of journal: Geophysical Research Letters
Series/Report no.: /36(2009)
Publisher: Agu
Issue Date: 2009
DOI: 10.1029/2009GL040513
Keywords: Caldera
Campi Flegrei
Abstract: The Campi Flegrei caldera is one of the highest risk volcanic areas on the Earth. Our research documents a 150 year-long period of intense volcanism following less than 200 years of repose after the Agnano-Monte Spina Plinian eruption (4.1 ka). The new data show that the renewal of volcanism was preceded by an uplift of a few tens of meters, triggered by mafic refilling of reservoirs at depths of 3 km or less. Our studies also indicate for the first time the occurrence of contemporaneous eruptions from at locations in different sectors of the caldera. These results suggest that a future eruptive crisis will likely be preceded by several meters of caldera-wide uplift in response to magma movements at depth. The trend of uplift of the caldera since 1969 may thus represent the unrest expected before a renewal of volcanism within an interval of decades to centuries.
Appears in Collections:04.08.99. General or miscellaneous
05.02.03. Volcanic eruptions
Papers Published / Papers in press

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