Results 31 to 40 of about 309,413 (302)

Tonga volcanic eruption and tsunami, January 2022: globally the most significant opportunity to observe an explosive and tsunamigenic submarine eruption since AD 1883 Krakatau

Geoscience Letters, 2022
January 2022 witnessed the violent eruption of Hunga Tonga–Hunga Haʻapai submarine volcano in the South Pacific. With a volcanic explosivity index possibly equivalent to VEI 5, this represents the largest seaborne eruption for nearly one and a half ...
J. Terry, J. Goff, N. Winspear, V. P. Boñgolan, Scott Fisher   +4 more
semanticscholar   +1 more source

Lightning and electrical activity during the Shiveluch volcano eruption on 16 November 2014 [PDF]

Natural Hazards and Earth System Sciences, 2016
According to World Wide Lightning Location Network (WWLLN) data, a sequence of lightning discharges was detected which occurred in the area of the explosive eruption of Shiveluch volcano on 16 November 2014 in Kamchatka.
B. M. Shevtsov, P. P. Firstov, N. V. Cherneva, R. H. Holzworth, R. R. Akbashev   +4 more
doaj   +1 more source

Ensemble-Based Data Assimilation of Volcanic Ash Clouds from Satellite Observations: Application to the 24 December 2018 Mt. Etna Explosive Eruption

Atmosphere, 2020
Accurate tracking and forecasting of ash dispersal in the atmosphere and quantification of its uncertainty are of fundamental importance for volcanic risk mitigation.
Federica Pardini, S. Corradini, A. Costa, T. Esposti Ongaro, L. Merucci, A. Neri, D. Stelitano, M. de’ Michieli Vitturi   +7 more
semanticscholar   +1 more source

Can nanolites enhance eruption explosivity? [PDF]

Geology, 2020
Abstract Degassing dynamics play a crucial role in controlling the explosivity of magma at erupting volcanoes. Degassing of magmatic water typically involves bubble nucleation and growth, which drive magma ascent. Crystals suspended in magma may influence both nucleation and growth of bubbles.
Cáceres, Francisco, Wadsworth, Fabian B., Scheu, Bettina, Colombier, Mathieu, Madonna, Claudio, Cimarelli, Corrado, Hess, Kai-Uwe, Kaliwoda, Melanie, Ruthensteiner, Bernhard, Dingwell, Donald B.   +9 more
openaire   +2 more sources

The Research Unit VolImpact: Revisiting the volcanic impact on atmosphere and climate – preparations for the next big volcanic eruption [PDF]

, 2020
This paper provides an overview of the scientific background and the research objectives of the Research Unit “VolImpact” (Revisiting the volcanic impact on atmosphere and climate – preparations for the next big volcanic eruption, FOR 2820).
Buehler, S., Burrows, J., Giorgetta, M., Hegerl, G., Hoose, C., Horvath, A., Hoshyaripour, G., Malinina, E., Quaas, J., Rozanov, A., Schmidt, H., Thomason, L., Timmreck, C., Toohey, M., Vogel, B., von Savigny, C.   +15 more
core   +2 more sources

Sensitivity of stratospheric ozone to the latitude, season, and halogen content of a contemporary explosive volcanic eruption

Scientific Reports, 2023
We present a systematic evaluation of the perturbation to the stratosphere from an explosive volcanic eruption injecting sulfur dioxide into the atmosphere, as a function of latitude, season, and injection gas halogen content in a chemistry-climate state
Freja F. Østerstrøm, J. Eric Klobas, Robert P. Kennedy, Anita Cadoux, David M. Wilmouth   +4 more
doaj   +1 more source

A stress-controlled mechanism for the intensity of very large magnitude explosive eruptions [PDF]

, 2011
Large magnitude explosive eruptions are the result of the rapid and large-scale transport of silicic magma stored in the Earth's crust, but the mechanics of erupting teratonnes of silicic magma remain poorly understood.
Costa, Antonio, Gottsmann, Joachim, Melnik, Oleg, Sparks, R. S. J.   +3 more
core   +1 more source

Discriminating Types of Volcanic Electrical Activity: Toward an Eruption Detection Algorithm

Geophysical Research Letters, 2022
We present a method for classification of the two distinct types of electrical activity that occur during an explosive volcanic eruption: vent discharges and lightning.
S. A. Behnke, H. E. Edens, J. Theiler, D. J. Swanson, S. Senay, A. R. Van Eaton, M. Iguchi, D. Miki   +7 more
doaj   +1 more source

Responding to eruptive transitions during the 2020–2021 eruption of La Soufrière volcano, St. Vincent

Nature Communications, 2022
The 2020 – 2021 eruption of La Soufrière volcano transitioned from an effusive to explosive eruption style. Here the authors show that input from multiple monitoring datasets and an evolving conceptual model were key to anticipating and responding to the
E. P. Joseph, M. Camejo-Harry, T. Christopher, R. Contreras-Arratia, S. Edwards, O. Graham, M. Johnson, A. Juman, J. L. Latchman, L. Lynch, V. L. Miller, I. Papadopoulos, K. Pascal, R. Robertson, G. A. Ryan, A. Stinton, R. Grandin, I. Hamling, M-J. Jo, J. Barclay, P. Cole, B. V. Davies, R. S. J. Sparks   +22 more
doaj   +1 more source

Pre-eruptive excess volatiles and their relationship to effusive and explosive eruption styles in semi-plugged volcanoes

Frontiers in Earth Science, 2022
Understanding the role of various factors influencing eruption style is challenging, but it can aid in adapting different hazard mitigations and crisis responses for explosive or effusive events.
Sri Budhi Utami, Juan Andùjar, Fidel Costa, Fidel Costa, Fidel Costa, Bruno Scaillet, Hanik Humaida, Simon Carn   +7 more
doaj   +1 more source