Results 91 to 100 of about 146,104 (239)

Self‐Potential Signal Associated With Hydrothermal System Disrupted by Extreme Raining Events; The Case Study of Formica Leo, Piton de la Fournaise, La Réunion Island

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 11, November 2025.
Abstract The scoria cones called Formica Leo located at the base of the Piton de la Fournaise terminal cone have been chosen for its significant positive Self‐Potential (SP) anomalies associated with hydrothermal uprising fluids to monitor SP signal and study its dynamics in relation with huge and extreme rainfall events.
Emilie Roulleau, Anthony Finizola, Nicolas Vinet, Romain Biennais, Mazhar Meralli Ballou, Amélie Poullot, Céline D'Angelo, Clément Grace, Emma Chaudron Vrignaud, Rachel Gusset, Killian Mussard, Jehoji Kuzamba Ethu, Elisa‐Lou Reati   +12 more
wiley   +1 more source

The dilemmas of risk-sensitive development on a small volcanic island [PDF]

, 2016
In the Small Islands Developing State (SIDS) of St Vincent and the Grenadines in the Caribbean, the most destructive disasters in terms of human casualties have been the multiple eruptions of La Soufrière volcano situated in the north of St Vincent ...
Ahmad, Bahadur, Connell, Flett, Isaacs, Kelman, Kenny, Loughlin, Morin, Opadeyi, Pelling, Pyle, Robertson, Siebert, Terry, Wilkinson, Wilkinson, Wisner   +17 more
core   +2 more sources

Three‐Dimensional Resistivity Structure of Iwo‐Yama Volcano, Kirishima Volcanic Complex, Japan: Relationship to Shallow Seismicity, Surface Uplift, and a Small Phreatic Eruption

Geophysical Research Letters, 2018
Iwo‐yama volcano, part of the Kirishima Volcanic Complex, has recently shown signs of unrest. We conducted a hypocenter relocation of shallow earthquakes and broadband magnetotelluric measurements around Iwo‐yama.
Kaori Tsukamoto, K. Aizawa, Keita Chiba, W. Kanda, M. Uyeshima, Takao Koyama, M. Utsugi, Kenjiro Seki, Takahiro Kishita   +8 more
semanticscholar   +1 more source

Geophysical examination of the 27 April 2016 Whakaari/White Island, New Zealand, eruption and its implications for vent physiognomies and eruptive dynamics

Earth, Planets and Space, 2019
At approximately 09:36 UTC on 27 April 2016, a phreatic eruption occurred on Whakaari Island (White Island) producing an eruption sequence that contained multiple eruptive pulses determined to have occurred over the first 30 min, with a continuing tremor
Braden Walsh, Jonathan Procter, Ivan Lokmer, Johannes Thun, Tony Hurst, Bruce Christenson, Arthur Jolly   +6 more
doaj   +1 more source

Large‐Scale Topographic Changes at Erupting Volcanoes Measured by the TanDEM‐X Digital Change Map

Earth and Space Science, Volume 12, Issue 11, November 2025.
Abstract Volcanic eruptions cause large‐scale topographic changes, through the emplacement of lava flows and lava domes, the formation of craters and calderas, and thick ash and pyroclastic deposits. Here we analyze the TanDEM‐X Digital Change Map (DCM), which compares the DEM produced during 2010–2015 with satellite acquisitions collected in 2016–2022.
Rebecca Edwards, Juliet Biggs
wiley   +1 more source

Quantitative relationship between plume emission and multiple deflations after the 2014 phreatic eruption at Ontake volcano, Japan

Earth, Planets and Space, 2019
The phreatic eruption of Mount Ontake in 2014 caused local-scale subsidence and a mass discharge of water–vapor plumes from vents. A previous study of InSAR data analysis modeled the local subsidence as a deflation of a shallow hydrothermal reservoir ...
Shohei Narita, M. Murakami, R. Tanaka
semanticscholar   +1 more source

Chemistry, Growth, and Fate of the Unique, Short‐Lived (2019–2020) Water Lake at the Summit of Kīlauea Volcano, Hawaii

Geochemistry, Geophysics, Geosystems
Less than a year after the 2018 Kīlauea caldera collapse and eruption, water appeared in newly deepened Halemaʻumaʻu crater. The lake—unprecedented in the written record—grew to a depth of ∼50 m before lava from the December 2020 eruption boiled it away.
P. A. Nadeau, S. Hurwitz, S. Peek, A. H. Lerner, E. F. Younger, M. R. Patrick, D. E. Damby, R. B. McCleskey, P. J. Kelly   +8 more
doaj   +1 more source

Possible application of compact electronics for multilayer muon high-speed radiography to volcanic cones [PDF]

Geoscientific Instrumentation, Methods and Data Systems, 2013
Compact data-taking electronics were developed for high-speed multilayer muon radiography in order to minimize operation failure rates. By requiring a linear trajectory within the position sensitive detectors (PSDs), the background (BG) events produced ...
H. K. M. Tanaka, I. Yokoyama
doaj   +1 more source

Decadal Monitoring of Seismic Velocity Changes Beneath Izu‐Oshima, Central Japan, Using Ambient Seismic Noise Records

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 11, November 2025.
Abstract This study monitors the seismic velocity changes beneath the Izu‐Oshima volcano, central Japan, using ambient seismic noise records from 2003 to 2020. Applying seismic interferometry to the continuous waveform data from 24 seismic stations, we observed significant temporal variations in the seismic velocity structure.
Yohei Yukutake, Taka'aki Taira, Shin'ya Onizawa, Yuichi Morita   +3 more
wiley   +1 more source

Analyzing the continuous volcanic tremors detected during the 2015 phreatic eruption of the Hakone volcano

Earth, Planets and Space, 2017
In the present study, we analyze the seismic signals from a continuous volcanic tremor that occurred during a small phreatic eruption of the Hakone volcano, in the Owakudani geothermal region of central Japan, on June 29, 2015.
Y. Yukutake, R. Honda, M. Harada, R. Doke, Tatsuhiko Saito, T. Ueno, S. Sakai, Y. Morita   +7 more
semanticscholar   +1 more source