Results 241 to 250 of about 627,703 (284)
Some of the next articles are maybe not open access.
Volcano deformation and eruption forecasting
Geological Society, London, Special Publications, 2013Abstract Recent advances in Global Positioning System (GPS), tilt and Interferometric Synthetic Aperture Radar (InSAR) have greatly increased the availability of volcano deformation data. These measurements, combined with appropriate source models, can be used to estimate magma chamber depth, and to provide information on chamber shape and ...
openaire +1 more source
Deformation measurements on Kilauea volcano, Hawaii
Bulletin Volcanologique, 1966Repeated electronic distance measurements across Kilauea Caldera with Tellurometers and Geodimeter show definite horizontal expansion related to the vertical uplift and outward tilting of the summit prior to an eruption, and contraction during and after a flank eruption.
R. W. Decker, D. P. Hill, T. L. Wright
openaire +1 more source
Oscillatory nature of the Okmok volcano's deformation
Earth and Planetary Science Letters, 2019Abstract The time-dependent deformation of volcanic edifices can help one understand the dynamics of pre-eruptive overpressure build-up in magma chambers. Thus, geodetic time series recorded at the Okmok volcano, in Alaska, show a pattern of fast and short inflations — referred to as “pulses” — followed by either slower and longer deflations, or time
D. Walwer, M. Ghil, E. Calais
openaire +1 more source
Lessons from deforming volcanoes
2007Whereas previous chapters are focused primarily on geodetic techniques, this one addresses specific applications of those techniques at a few well-studied volcanoes. Mount St. Helens, KTlauea, Yellowstone, and Long Valley illustrate the tremendous diversity in terms of style, duration, dimensions, and mechanisms of ground movements.
openaire +1 more source
Multidisciplinary perspectives on Shishaldin Volcano: an open-system, deforming volcano
The integration of multidisciplinary data across multiple eruptions is essential to improve our understanding of a volcanic system. Shishaldin Volcano is one of the most active volcanoes in Alaska, with several reported eruptions over the last 300 years. We synthesize multidisciplinary datasets going back to 1997 and focus our analyses on the 2014–2015,Mario Angarita +12 more
openaire +1 more source
Analytical volcano deformation source models
2007Primary volcanic landforms are created by the ascent and eruption of magma. The ascending magma displaces and interacts with surrounding rock and fluids as it creates new pathways, flows through cracks or conduits, vesiculates, and accumulates in underground reservoirs.
openaire +1 more source
Correlation between seismic activity and volcano deformation on Sinabung Volcano in February 2017
AIP Conference Proceedings, 2018Sinabung Volcano was once a dormant volcano until a series of eruption occurred on August 27, 2010 [1]. The methodology used in this research is collecting continuous GPS data from observation points around Sinabung Volcano; KBYK, LKWR, MDRG, and SNBG from CVGHM (Center for Volcanology and Geological Hazard Mitigation) in February 2017.
Azhar Fuadi Siregar +3 more
openaire +1 more source
Rheological effects in volcano deformation modelling
The build-up of magma beneath a volcano can be revealed by ground surface deformation, and the recorded surface displacement can be modelled to infer details of the magma system dynamics. Constraints on magmatic processes can then be used to aid hazard assessment and eruption forecasting. However, inferring the processes occurring in the magma plumbingJames Hickey +6 more
openaire +1 more source
Role of Ground Surface Deformation in Volcano Monitoring
2014What can be learned about the inner working of volcanoes by studying how they change shape or deform? What role does InSAR play in volcano deformation studies, and what other techniques are useful for studying deforming volcanoes? By what means and to what extent can volcanic eruptions and their impacts be forecast using deformation and other types of ...
Zhong Lu, Daniel Dzurisin
openaire +1 more source