搜索结果: 1-15 共查到“地球物理学 volcano”相关记录31条 . 查询时间(0.129 秒)
Tree rings and Iceland's Laki volcano eruption:A closer look at climate（图）
Tree rings Iceland Laki volcano eruption A closer look climate
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2021/2/5
By reading between the lines of tree rings, U.S. National Science Foundation-funded researchers at the University of Arizona reconstructed what happened in Alaska the year the Laki Volc...
The geodynamics of Mt. Etna volcano during and after the 1984 eruption
Mt. Etna earthquakes focal mechanisms stress field eruption
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2015/10/8
Data concerning M > 2.5 earthquakes that occurred at Mt. Etna volcano (Sicily, Italy) during the period April 15th - October 29th, 1984 are here presented and discussed. Only those events with reliabl...
Giuseppe Imbò and his contribution to volcano seismology
Mt. Vesuvius Imbò Volcanic tremor
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2015/10/8
Together with Fusakichi Omori and Kenzo Sassa, Giuseppe Imbò is one of the founders of volcano seismology. Imbò's novel idea in volcanic tremor analysis was the introduction of what he called "numeri ...
Volcanic tremor associated with eruptive activity at Bromo volcano
volcanic tremor broadband seismology
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2015/10/8
Three broadband stations were deployed on Bromo volcano, Indonesia, from September to December 1995. The analysis of the seismograms shows that the signals produced by the volcanic sources cover the f...
Listening carefully: unique observations of harmonic tremor at Lascar volcano, Chile
volcano seismology harmonic tremor
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2015/10/8
During the deployment of Proyecto de Investigación Sismológica de la Cordillera Occidental 94 (PISCO'94) in the Atacama Desert of Northern Chile, a broadband seismic station and a network of three sho...
Analysis and quasistatic FE modeling of long period impulsive events associated with explosions at Stromboli volcano (Italy)
volcano seismology long-period measurements Stromboli finite element calculations volcano sources
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2015/10/8
Broadband seismic measurements performed in 1995 and 1996 in the summit region of Stromboli are analyzed. The experiment in 1995 used an array of four Guralp seismometers and one Wielandt-Streckeisen ...
Observations of two special kinds of tremor at Galeras volcano, Colombia(1989-1991)
Galeras volcano harmonic tremor spasmodic tremor degassing activity resonance crack
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2015/10/8
Since the reactivation of Galeras volcano in 1988 its seismic activity has been dominated by a variety of LP waveforms and tremor events. Some of these signals occurred as a response to volcanic activ...
Tornillo seismic events at Galeras volcano, Colombia: a summary and new information from broadband three-component measurements
volcanoes seismic events broadband record tornillos Galeras volcano
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2015/10/8
Long-duration events have been recorded at several active, andesitic volcanoes. Their main characteristics are a single, sharp frequency peak, and an exceptionally long coda. Because their seismograms...
The anatomy of a tornillo: puzzles from three-component measurements at Galeras volcano (Colombia)
Galeras tornillo polarizations analytic function parametrization
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2015/10/8
Many of the recent ash eruptions of Galeras volcano (Colombia) have been preceded by tornillos. These unusual seismic events of unknown origin have screw-like profiles on seismograms and can last up t...
Evaluation of electric and magnetic field monitoring of Miyake-jima volcano monitoring of Miyake-jima volcanomonitoring of Miyake-jima volcano (Central Japan):1995-1999
Miyake-jima volcano lectromagnetic monitorin of volcano volcanomagnetic effect resistivity self potential thermal magnetic effect
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2015/9/28
Evaluation of electric and magnetic field monitoring of Miyake-jima volcano monitoring of Miyake-jima volcanomonitoring of Miyake-jima volcano (Central Japan):1995-1999.
Self-potential chenges associated with volcanic activity:Short-term signals associated with March 9,1998 eruption on La Fournaise volcano (Reunion Island)
self-potential electric precursor ULF band self-potential mapping eruption
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2015/9/28
After six years of quietness La Fournaise volcano entered into activity on March 9, 1998. Fissures opened gradually downwards on the northern flank of the cone. Two cones, Kapor and Krafft built, from...
The new integrated aeromagnetic map of the Phlegrean Fields volcano and surrounding areas
aeromagnetic survey Phlegrean Fields wavelet analysis
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2015/9/15
In this paper we present and analyze the new detailed aeromagnetic data set resulting from a recent survey carried out in the Phlegrean Fields volcanic area. The survey was aimed at gaining new insigh...
Finite element analysis of ground deformation due to dike intrusion with applications to Mt. Etna volcano
FEM ground deformation dike intrusion real medium
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2015/9/15
A 2D finite elements study was carried out to analyse the effects caused by dike intrusion inside a heterogeneous medium and with a realistic topography of Mt. Etna volcano. Firstly, the method (dimen...
Fluid geochemistry and seismic activityin the period 1998-2002 at Turrialba Volcano (Costa Rica)
volcanic gases volcanic hazard geochemical monitoring geophysical monitoring Turrialba Volcano
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2015/9/15
Turrialba Volcano, located in Central-Southern Costa Rica, has been characterized, since the last period of eruptive activity in 1884-1886, by a weak and discontinuous fumarolic activity in the wester...
A new active volcano in the Tyrrhenian Sea?
seismicity and volcanic activity in deep marine areas fibre-optic cable failure Southern Tyrrhenian Sea
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2015/9/7
A strong earthquake occurred in 2002 offshore from the northern coast of Sicily in the Southern Tyrrhenian Sea (Italy), and was followed by a series of hundreds of aftershocks. Communications through ...