Results 191 to 200 of about 7,688 (251)
Recent eruptions at Bezymianny volcano—A seismological comparison
Journal of Volcanology and Geothermal Research, 2012 Abstract For the past few decades, Bezymianny volcano has erupted once to twice per year. Here, I examine eight eruptive events between 2006 and 2010. This is the first time period for which proximal or broadband seismic data have been recorded at Bezymianny. Several recurring patterns are demonstrated in advance of eruptions. Eruptions are generally
M. E. West
openalex +3 more sources
The Stromboli Volcano landslides of December 2002: A seismological description [PDF]
Geophysical Research Letters, 2004 We analyse seismograms of the slump episodes at Stromboli on December 30, 2002. Using a simple single force model, we estimate the volume involved in the individual subevents and attempt a chronological reconstruction of the whole process. Our results indicate the occurrence of two main events that could be interpreted as a submarine slump, which ...
Nicola Alessandro Pino +2 more
openalex +3 more sources
New Methods and Future Trends in Seismological Volcano Monitoring
, 1996 Volcanic processes operate over a wide range of time scales that require a variety of instruments and techniques for their study. Short-period seismology typically covers the band 0.1–1 s, while broadband seismology can extend that band to 0.1–100 s.
Bernard Chouet
openalex +3 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Linking Petrology and Seismology at an Active Volcano
Science, 2012Subterranean Eruption Clues Volcano monitoring relies upon detecting changing physical conditions around an active source, such as increased seismicity or ground deformation; however, relating these behaviors to magmatic processes below ground remains challenging. The geochemical signatures of erupted magmatic crystals, including
Saunders, Kate E +3 more
openaire +4 more sources
Journal of Volcanology and Geothermal Research, 1981 Abstract An earthquake swarm, and the major pumice eruptions in August 1977 which followed, marked the start of the dacitic doming activity of Usu volcano in southwestern Hokkaido, Japan. The sequence of magma intrusion processes was investigated in detail by means of seismological and other geophysical data.
Hm. Okada +3 more
openalex +3 more sources
Volcano Seismology: An Introduction [PDF]
, 2014 Earthquake The rupturing along the fractures and faults as well as the eruptive activity produces the seismic waves, which could vibrate the Earth surface as earthquakes. The site of initial radiation of seismic waves in the interior is earthquake focus, or hypocenter; its projection to the surface is epicenter.
openaire +1 more source
Seismological constraints on the position of the fragmentation surfaces in the volcano conduit
Earth and Planetary Science Letters, 2008Abstract The durations of the pre-explosion low-frequency impulses of the broadband seismic records of 286 Vulcanian explosions of Volcan de Colima and 15 Vulcanian explosions of Popocatepetl volcano, Mexico were analyzed. These pre-explosion impulses are thought to be produced during the upward movement of fragmented magma in the volcano conduit ...
Vyacheslav M. Zobin +3 more
openaire +2 more sources
Volcano seismology, hazards assessment
Reviews of Geophysics, 1995The last few years have seen several impressive examples of seismic monitoring at volcanoes to provide warnings that have saved lives and property. Changes in the rates and character of volcanic earthquakes provided precursory signs to explosive eruptions of moderate size at Redoubt volcano (Alaska), Mount Unzen (Japan), Mount Spurr (Alaska), and ...
openaire +2 more sources
4-D noise-based seismology at volcanoes: Ongoing efforts and perspectives
Journal of Volcanology and Geothermal Research, 2016Monitoring magma pressure buildup at depth and transport to surface is a key point for improving volcanic eruption prediction. Seismic waves, through their velocity dependence to stress perturbations, can provide crucial information on the temporal evolution of the mechanical properties of volcanic edifices.
Brenguier, F. +7 more
openaire +3 more sources