The Campi Flegrei Caldera (Southern Italy): Modeling, Interpretation and Hazard Estimation
Abstract
This work reviews the main geophysical observations, modelling interpretations and hazard estimation at Campi Flegrei caldera, both in normal periods and during unrests involving very high uplift and seismicity rates. Campi Flegrei caldera is a volcanic area partially including the city of Naples (Southern Italy). Explosive activity, mainly hydromagmatic, characterises this area, in which huge ground deformations, well known since ancient Roman times, occur. In the last 30 years, two episodes at least of spectacular ground deformation and seismicity have occurred. This work reviews the main issues and problems in the interpretation of Campi Flegrei activity, presenting a coherent model which involves both elastic and thermal fluid-dynamical effects. The basic concepts, which are thought to be distinctive features of activity at all the calderas, involve the close interplay among magmatic stress, bordering caldera faults and shallow geothermal system, with an important contribution of background regional stress. The work presents new insight for interpreting pre-eruptive sequences at calderas, and new methodologies for the estimation of hazard in such a densely populated area.
- Publication:
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AGU Spring Meeting Abstracts
- Pub Date:
- May 2005
- Bibcode:
- 2005AGUSM.V23B..02D
- Keywords:
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- 5104 Fracture and flow;
- 7209 Earthquake dynamics and mechanics;
- 7223 Seismic hazard assessment and prediction;
- 7230 Seismicity and seismotectonics;
- 7280 Volcano seismology (8419)