Maurizio Battaglia
I am the deformation specialist for the Volcano Disaster Assistance Program (VDAP). I write scientific software, train staff at volcano observatories, mentor young (and young at heart) scientists, model deformation and gravity data, and support volcano observatories during volcanic unrest.
Science and Products
Filter Total Items: 30
Keeping watch over Colombia’s slumbering volcanoes Keeping watch over Colombia’s slumbering volcanoes
Located in the Central Cordillera (Colombian Andes), Nevado del Ruiz is a volcanic complex, topped by glaciers, rising 5,321 m above sea level. A relatively small explosive eruption from Ruiz's summit crater on November 13, 1985, generated an eruption column and sent a series of pyroclastic flows and surges across the volcano's ice-covered summit. Pumice and meltwater produced by the hot
Authors
Milton Ordonez, Christian López, Jorge Alpala, Lourdes Narváez, Dario Arcos, Maurizio Battaglia
Gravity changes and deformation at Kīlauea Volcano, Hawaii, associated with summit eruptive activity, 2009-2012 Gravity changes and deformation at Kīlauea Volcano, Hawaii, associated with summit eruptive activity, 2009-2012
Analysis of microgravity and surface displacement data collected at the summit of Kīlauea Volcano, Hawaii (USA), between December 2009 and November 2012 suggests a net mass accumulation at ~1.5 km depth beneath the northeast margin of Halema‘uma‘u Crater, within Kīlauea Caldera. Although residual gravity increases and decreases are accompanied by periods of uplift and subsidence of the...
Authors
Marco Bagnardi, Michael P. Poland, Daniele Carbone, Scott Baker, Maurizio Battaglia, Falk Amelung
Modeling crustal deformation near active faults and volcanic centers: a catalog of deformation models and modeling approaches Modeling crustal deformation near active faults and volcanic centers: a catalog of deformation models and modeling approaches
This manual provides the physical and mathematical concepts for selected models used to interpret deformation measurements near active faults and volcanic centers. The emphasis is on analytical models of deformation that can be compared with data from the Global Positioning System (GPS) receivers, Interferometric synthetic aperture radar (InSAR), leveling surveys, tiltmeters and...
Authors
Maurizio Battaglia, Peter F. Cervelli, Jessica R. Murray
Shallow magma accumulation at Kīlauea Volcano, Hawai‘i, revealed by microgravity surveys Shallow magma accumulation at Kīlauea Volcano, Hawai‘i, revealed by microgravity surveys
Using microgravity data collected at Kīlauea Volcano, Hawai‘i (United States), between November 1975 and January 2008, we document significant mass increase beneath the east margin of Halema‘uma‘u Crater, within Kīlauea's summit caldera. Surprisingly, there was no sustained uplift accompanying the mass accumulation. We propose that the positive gravity residual in the absence of...
Authors
Daniel J. Johnson, Albert A. Eggers, Marco Bagnardi, Maurizio Battaglia, Michael P. Poland, Asta Miklius
Analytical modeling of gravity changes and crustal deformation at volcanoes: The Long Valley caldera, California, case study Analytical modeling of gravity changes and crustal deformation at volcanoes: The Long Valley caldera, California, case study
Joint measurements of ground deformation and micro-gravity changes are an indispensable component for any volcano monitoring strategy. A number of analytical mathematical models are available in the literature that can be used to fit geodetic data and infer source location, depth and density. Bootstrap statistical methods allow estimations of the range of the inferred parameters...
Authors
Maurizio Battaglia, D.P. Hill
Uplift and magma intrusion at Long Valley caldera from InSAR and gravity measurements Uplift and magma intrusion at Long Valley caldera from InSAR and gravity measurements
The Long Valley caldera (California) formed ~760,000 yr ago following the massive eruption of the Bishop Tuff. Postcaldera volcanism in the Long Valley volcanic field includes lava domes as young as 650 yr. The recent geological unrest is characterized by uplift of the resurgent dome in the central section of the caldera (75 cm in the past 33 yr) and earthquake activity followed by...
Authors
Pietro Tizzani, Maurizio Battaglia, Giovanni Zeni, Simone Atzori, Paolo Berardino, Riccardo Lanari
Science and Products
Filter Total Items: 30
Keeping watch over Colombia’s slumbering volcanoes Keeping watch over Colombia’s slumbering volcanoes
Located in the Central Cordillera (Colombian Andes), Nevado del Ruiz is a volcanic complex, topped by glaciers, rising 5,321 m above sea level. A relatively small explosive eruption from Ruiz's summit crater on November 13, 1985, generated an eruption column and sent a series of pyroclastic flows and surges across the volcano's ice-covered summit. Pumice and meltwater produced by the hot
Authors
Milton Ordonez, Christian López, Jorge Alpala, Lourdes Narváez, Dario Arcos, Maurizio Battaglia
Gravity changes and deformation at Kīlauea Volcano, Hawaii, associated with summit eruptive activity, 2009-2012 Gravity changes and deformation at Kīlauea Volcano, Hawaii, associated with summit eruptive activity, 2009-2012
Analysis of microgravity and surface displacement data collected at the summit of Kīlauea Volcano, Hawaii (USA), between December 2009 and November 2012 suggests a net mass accumulation at ~1.5 km depth beneath the northeast margin of Halema‘uma‘u Crater, within Kīlauea Caldera. Although residual gravity increases and decreases are accompanied by periods of uplift and subsidence of the...
Authors
Marco Bagnardi, Michael P. Poland, Daniele Carbone, Scott Baker, Maurizio Battaglia, Falk Amelung
Modeling crustal deformation near active faults and volcanic centers: a catalog of deformation models and modeling approaches Modeling crustal deformation near active faults and volcanic centers: a catalog of deformation models and modeling approaches
This manual provides the physical and mathematical concepts for selected models used to interpret deformation measurements near active faults and volcanic centers. The emphasis is on analytical models of deformation that can be compared with data from the Global Positioning System (GPS) receivers, Interferometric synthetic aperture radar (InSAR), leveling surveys, tiltmeters and...
Authors
Maurizio Battaglia, Peter F. Cervelli, Jessica R. Murray
Shallow magma accumulation at Kīlauea Volcano, Hawai‘i, revealed by microgravity surveys Shallow magma accumulation at Kīlauea Volcano, Hawai‘i, revealed by microgravity surveys
Using microgravity data collected at Kīlauea Volcano, Hawai‘i (United States), between November 1975 and January 2008, we document significant mass increase beneath the east margin of Halema‘uma‘u Crater, within Kīlauea's summit caldera. Surprisingly, there was no sustained uplift accompanying the mass accumulation. We propose that the positive gravity residual in the absence of...
Authors
Daniel J. Johnson, Albert A. Eggers, Marco Bagnardi, Maurizio Battaglia, Michael P. Poland, Asta Miklius
Analytical modeling of gravity changes and crustal deformation at volcanoes: The Long Valley caldera, California, case study Analytical modeling of gravity changes and crustal deformation at volcanoes: The Long Valley caldera, California, case study
Joint measurements of ground deformation and micro-gravity changes are an indispensable component for any volcano monitoring strategy. A number of analytical mathematical models are available in the literature that can be used to fit geodetic data and infer source location, depth and density. Bootstrap statistical methods allow estimations of the range of the inferred parameters...
Authors
Maurizio Battaglia, D.P. Hill
Uplift and magma intrusion at Long Valley caldera from InSAR and gravity measurements Uplift and magma intrusion at Long Valley caldera from InSAR and gravity measurements
The Long Valley caldera (California) formed ~760,000 yr ago following the massive eruption of the Bishop Tuff. Postcaldera volcanism in the Long Valley volcanic field includes lava domes as young as 650 yr. The recent geological unrest is characterized by uplift of the resurgent dome in the central section of the caldera (75 cm in the past 33 yr) and earthquake activity followed by...
Authors
Pietro Tizzani, Maurizio Battaglia, Giovanni Zeni, Simone Atzori, Paolo Berardino, Riccardo Lanari