Part I: Fundamentals
Chapter 1 - Volcanoes and volcanic activity
1.1 - Introduction
1.2 - Volcano distribution
1.3 - Volcano composition
1.4 - Monogenic and polygenic volcanoes
1.5 - Volcano alignment and elongation
1.6 - Types of volcanic edifices
1.7 - Volcanic activity
1.8 - Effusive eruptions
1.9 - Explosive eruptions
1.10 - Volcanic hazard and risk
1.11 - Summary
Chapter 2 - Crustal deformation
2.1 - Introduction
2.2 - Stress
2.3 - Strain
2.4 - Elastic deformation
2.5 - Brittle deformation 2.6 - The seismic cycle
2.7 - Ductile deformation
2.8 - Rheology of the crust and the magma
2.9 - Summary
Part II: Magma migration to the surface
Chapter 3 - Rise of magma through the crust: diapirs, dikes
3.1 - Introduction
3.2 - Magmatic diapirs 3.3 - Dikes
3.4 - Mechanics of dike formation
3.5 - Mechanics of dike propagation
3.6 - Summary
Chapter 4 - Magma emplacement: magma reservoirs
4.1 - Introduction
4.2 - General features
4.3 - Sills
4.4 - Laccoliths
4.5 - Lopoliths
4.6 - Magma chambers
4.7 - Mechanism of pluton emplacement
4.8 - The plutonic-volcanic link
4.9 - Summary
Chapter 5 - Vertical collapses: calderas
5.1 - Introduction
5.2 - General features of calderas
5.3 - Geological and geophysical evidence of caldera structure and development
5.4 - Modelling caldera structure and development 5.5 - Relationships to regional tectonics
5.6 - Classification of calderas 5.7 - Caldera structure and eruptions
5.8 - Caldera resurgence: resurgent domes and blocks
5.9 - Caldera unrest 5.10 - Summary
Chapter 6 - Lateral collapses: flank instability
6.1 - Introduction
6.2 - General features
6.3 - Anatomy of an unstable flank
6.4 - Causes of flank instability
6.5 - Analysis of flank instability
6.6 - Flank instability in mafic volcanoes
6.7 - Flank instability in felsic volcanoes
6.8 - Multi-hazard related to flank instability
6.9 - Summary
Chapter 7 - Magma transfer within volcanic edifices
7.1 - Introduction
7.2 - Regional, radial and circumferential dikes
7.3 - Dike propagation within volcanic edifices
7.4 - Dike propagation in calderas
7.5 - Cryptodomes
7.6 - Necks and plugs
7.6 - Summary
Chapter 8 - Volcano unrest
8.1 - Introduction 8.2 - General features
8.3 - Monitoring volcanoes
8.4 - Magmatic trigger: deformation source models 8.5 - Seismic trigger
8.6 - State of the volcano and alert levels
8.7 - Summary
Chapter 9 - Forecasting eruptions
9.1 - Introduction 9.2 - Deterministic forecast
9.3 - Probabilistic forecast
9.4 - The time window 9.5 - Eruptive scenarios
9.6 - Forecast case
About the Author: Valerio Acocella, professor of Volcano-Tectonics and Volcanic Risk at the University of Roma Tre, Rome, Italy, has been studying volcanoes worldwide for more than two decades, publishing approximately 150 scientific papers. He has coordinated large research projects on Etna and Campi Flegrei, as well as the IAVCEI Commission on Calderas. He has been serving as editor for several scientific journals and organizing sessions at many scientific meetings.