Results 21 to 30 of about 441,479 (240)
The Duration Amplitude Distribution of Volcanic Tremor Recorded at Ijen Volcano, Indonesia
Malaysian Journal of Fundamental and Applied Sciences, 2023 This research was conducted with the aim of explaining the physical processes that occur at the source. The duration-amplitude distribution is an amplitude scaling method that can describe the process of sustained earthquake sources such as volcanic ...
A. Wildani +3 more
semanticscholar +1 more source
The trigger mechanism of low-frequency earthquakes on Montserrat. [PDF]
, 2006 A careful analysis of low-frequency seismic events on Soufrie`ere Hills volcano, Montserrat, points to a source mechanism that is non-destructive, repetitive, and has a stationary source location.
Dingwell, Donald B +5 more
core +4 more sources
Mathematical model for volcanic harmonic tremors [PDF]
Scientific Reports, 2019 AbstractHarmonic tremors consist in the release of infrasonic energy associated with volcanic activity. The typical frequency range of harmonic tremors is 0.1–12 Hz. We suppose that the harmonic tremors are due to the formation of bubbles entrapped in cavities that oscillate converting thermal energy into mechanic energy.
Montegrossi G.[1 +5 more
openaire +4 more sources
Geophysical Research Letters, 2022 The mild degassing and effusion that characterizes open‐vent volcanoes can be interrupted by episodes of sustained explosive activity known as paroxysms. Here, we present observations from a seismic array deployment during the 2021 eruption of Mt.
L. Zuccarello +6 more
semanticscholar +1 more source
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
doaj +1 more source
Volcanic tremor associated with the Surtsey eruption of 1963–1967
Jökull: Journal of The Glaciological and Geological Societies of Iceland, 2022 The formation of the island of Surtsey over 3.5 years, remains one of the best-documented volcanic, island-forming eruptions to date. The basaltic submarine volcanic activity was detected on November 14, 1963, where ocean depth was 130 m prior to the ...
Sara Sayyadi +2 more
semanticscholar +1 more source
Volcanic Tremor Extraction and Earthquake Detection Using Music Information Retrieval Algorithms
Seismological Research Letters, 2021 Volcanic tremor signals are usually observed before or during volcanic eruptions and must be monitored to evaluate the volcanic activity. A challenge in studying seismic signals of volcanic origin is the coexistence of transient signal swarms and long ...
Z. Zali +4 more
semanticscholar +1 more source
Clustering activity at Mt Etna based on volcanic tremor: A case study
Earth Science Informatics, 2021 This paper deals with the classification of volcanic activity into three classes, referred to as Quite, Strombolian and Paroxysm. The main purpose is to give a measure of the reliability with which such a classification, typically carried out by experts,
G. Nunnari
semanticscholar +1 more source
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
doaj +1 more source
Phase dependent modulation of tremor amplitude in essential tremor through thalamic stimulation [PDF]
, 2013 High frequency deep brain stimulation of the thalamus can help ameliorate severe essential tremor. Here we explore how the efficacy, efficiency and selectivity of thalamic deep brain stimulation might be improved in this condition.
Green, Alexander L +26 more
core +1 more source