Results 71 to 80 of about 2,078 (215)
Ceboruco hazard map: part I - definition of hazard scenarios based on the eruptive history
Journal of Applied Volcanology, 2019 Of the 48 volcanoes in Mexico listed as potentially active by the National Center for Disaster Prevention (CENAPRED), Ceboruco, located in the western Trans-Mexican Volcanic Belt, is considered among the 5 most hazardous.
Katrin Sieron +10 more
doaj +1 more source
Counterfactual Analysis of Runaway Volcanic Explosions
Frontiers in Earth Science, 2019 “Few, beside the student of such phenomena, will be able to realize what would have resulted from a more concentrated liberation of the accumulating energy if, for instance, instead of being separated into moderate earth movements and gas emissions ...
Willy Aspinall +2 more
doaj +1 more source
Crystal‐Rich Magma Is Solid‐Like and Liquefies When Deformed
Journal of Geophysical Research: Solid Earth, Volume 130, Issue 3, March 2025.Abstract The rheology of highly crystalline magma regulates its mobility, which may, in turn, determine the occurrence and styles of volcanic eruptions. We measured the rheology of high‐temperature magma with a basaltic‐andesite composition to document the properties that govern the transition from solid‐like to liquid‐like behavior.
Atsuko Namiki +7 more
wiley +1 more source
Earth, Planets and SpaceVulcanian eruptions, characterized by intermediate magma compositions, pose significant hazards due to their potential for both magmatic and phreatomagmatic fragmentation.
Wildan N. Hamzah +8 more
doaj +1 more source
Geophysical Research Letters, Volume 52, Issue 3, 16 February 2025.Abstract A moderate‐magnitude earthquake swarm occurred in the remote Izu Islands region of Japan between October 1 and 8, 2023. The swarm included 151 shallow earthquakes cataloged by the U.S. Geological Survey, which notably included a roughly 2.5‐hr episode of 15 successive magnitude (M) < 5.5 earthquakes.
C. A. Deane +5 more
wiley +1 more source
Effect of temperature on the permeability of lava dome rocks from the 2004–2008 eruption of Mount St. Helens [PDF]
, 2016 As magma ascends to shallow levels in the volcanic conduit, volatile exsolution can produce a dramatic increase in the crystal content of the magma.
Chadderton, A +3 more
core +1 more source
Seismic Signatures of Fluctuating Fragmentation in Volcanic Eruptions
Journal of Geophysical Research: Solid Earth, Volume 130, Issue 1, January 2025.Abstract Fragmentation plays a critical role in eruption explosivity by influencing the eruptive jet and plume dynamics that may initiate hazards such as pyroclastic flows. The mechanics and progression of fragmentation during an eruption are challenging to constrain observationally, limiting our understanding of this important process.
Katherine R. Coppess +2 more
wiley +1 more source
Dynamics, Monitoring, and Forecasting of Tephra in the Atmosphere
Reviews of Geophysics, Volume 62, Issue 4, December 2024.Abstract Explosive volcanic eruptions inject hot mixtures of solid particles (tephra) and gasses into the atmosphere. Entraining ambient air, these mixtures can form plumes rising tens of kilometers until they spread laterally, forming umbrella clouds. While the largest clasts tend to settle in proximity to the volcano, the smallest fragments, commonly
F. Pardini +7 more
wiley +1 more source
The 1723 AD violent Strombolian and phreatomagatic eruption at Irazu volcano (Costa Rica) [PDF]
, 2013 The largest of the recorded historic eruptions at Irazú volcano began on February 16, 1723 and lasted until at least December 11. We here critically examine deposits of this eruption exposed on the summit of Irazú. Our reconstruction of the eruption is
Alvarado, G. E., Schmincke, Hans-Ulrich
core
Geoquímica preliminar de materiais lávicos e piroclásticos emitidos em 2014 na Ilha do Fogo (Arquipélago de Cabo Verde) [PDF]
, 2015 Resumo ...
Caldeira, Rita +11 more
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