Results 11 to 20 of about 557 (187)
Frontiers in Earth Science, 2020 Volcanic tremor is a sustained seismic signal associated with volcanic unrest and is often linked to movement of magmatic fluids in the subsurface. However, signals with similar spectral content can be generated by other surface processes.
Patrick J. Smith, Christopher J. Bean
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Earth, Planets and Space, 2021 Kusatsu-Shirane volcano hosts numerous thermal springs, fumaroles, and the crater lake of Yugama. Hence, it has been a particular study field for hydrothermal systems and phreatic eruptions.
Taishi Yamada +8 more
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Maximal Lyapunov exponent variations of volcanic tremor recorded during explosive and effusive activity at Mt Semeru volcano, Indonesia [PDF]
Nonlinear Processes in Geophysics, 2013 We analyze 25 episodes of volcanic tremor recorded from 22 November until 31 December 2009 at Mt Semeru volcano in order to investigate their spectral and dynamical properties. The overtone frequencies for most of the tremor events indicate a pattern of
K. I. Konstantinou +5 more
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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.
Yohei Yukutake +7 more
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Analysis of the intermittent volcanic tremor observed at Mt. Etna, Sicily during March-May 1987
Annals of Geophysics, 1996 Volcanic activity at the summit craters of Mt. Etna includes phreatic eruptions which jeopardize tourists and other people who sporadically approach the top of the volcano. To date no appreciable precursors of this kind of activity are known.
A. Leotta +3 more
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Infrasonic waves and volcanic tremor at Stromboli
Geophysical Research Letters, 1996 The origin of the volcanic tremor is still under debate. Many theories have been proposed in the last years, but none has yet been completely accepted. In 1993, highly sensitive pressure sensors (2.175 Pa/Volt) used to monitor the explosive activity at Stromboli have revealed unexpected correlation between small spike‐shaped pressure signals (1–2 Pa ...
RIPEPE, MAURIZIO +3 more
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Volcanic Tremor and Deformation at Kīlauea
Eos, 2021 Two new studies investigate activity at Hawaii’s Kīlauea leading up to and following the 2018 eruption to better understand the volcano’s plumbing and behavior.
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Fiber-Optic Observation of Volcanic Tremor through Floating Ice Sheet Resonance
The Seismic Record, 2022 Entirely covered by the Vatnajökull ice cap, Grímsvötn is among Iceland’s largest and most hazardous volcanoes. Here we demonstrate that fiber-optic sensing technology deployed on a natural floating ice resonator can detect volcanic tremor at the level ...
Andreas Fichtner +5 more
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Volcanic tremor of the 2010 Eyjafjallajökull eruption
Geophysical Journal International, 2021 SUMMARYVolcanic eruptions in Iceland generally start with an increase in tremor levels. These signals do not have clear onset, like many earthquakes. As the character of the tremor signal is variable from one volcano to another, locating the source of the tremor signal may require different techniques for different volcanoes. Continuous volcanic tremor
Ásdís Benediktsdóttir +3 more
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Geohazards in the Western Ionian Sea: Insights from Non-Earthquake Signals Recorded by the NEMO-SN1 Seafloor Observatory [PDF]
Oceanography, 2014 Seafloor instability resulting from both tectonics and volcanism affects the Western Ionian Sea. The NEutrino Mediterranean Observatory-Submarine Network 1 (NEMO-SN1), deployed 25 km offshore eastern Sicily at 2,100 m water depth, records a variety of ...
Tiziana Sgroi +5 more
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