Preparatory process preceding the 2014 eruption of Mount Ontake volcano, Japan: insights from precise leveling measurements
نویسندگان
چکیده
منابع مشابه
Preparatory and precursory processes leading up to the 2014 phreatic eruption of Mount Ontake, Japan
We analyzed seismicity linked to the 2014 phreatic eruption of Mount Ontake, Japan, on 27 September 2014. We first relocated shallow volcano tectonic (VT) earthquakes and long-period (LP) events from August to September 2014. By applying a matched-filter technique to continuous waveforms using these relocated earthquakes, we detected numerous additional micro-earthquakes beneath the craters. Th...
متن کاملMonitoring eruption activity using temporal stress changes at Mount Ontake volcano.
Volcanic activity is often accompanied by many small earthquakes. Earthquake focal mechanisms represent the fault orientation and slip direction, which are influenced by the stress field. Focal mechanisms of volcano-tectonic earthquakes provide information on the state of volcanoes via stresses. Here we demonstrate that quantitative evaluation of temporal stress changes beneath Mt. Ontake, Japa...
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Volcano eruption forecast remains a challenging and controversial problem despite the fact that data from volcano monitoring significantly increased in quantity and quality during the last decades. This study uses pattern recognition techniques to quantify the predictability of the 15 Piton de la Fournaise (PdlF) eruptions in the 1988-2001 period using increase of the daily seismicity rate as a...
متن کاملTen-year helium anomaly prior to the 2014 Mt Ontake eruption
Mt Ontake in central Japan suddenly erupted on 27(th) September 2014, killing 57 people with 6 still missing. It was a hydro-volcanic eruption and new magmatic material was not detected. There were no precursor signals such as seismicity and edifice inflation. It is difficult to predict hydro-volcanic eruptions because they are local phenomena that only affect a limited area surrounding the exp...
متن کاملLightning Associated with the August 18, 1992, Eruption of Crater Peak Vent, Mount Spurr Volcano, Alaska
The Alaska Volcano Observatory's lightning detection system detected and located 171 lightning strokes during the August 18, 1992, eruption of the Crater Peak vent of Mount Spurr volcano in Alaska. The strokes, predominantly intracloud, were detected during a 70-minute interval that began more than an hour into the eruption. All detected strokes were of positive polarity. The spatial distributi...
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ژورنال
عنوان ژورنال: Earth, Planets and Space
سال: 2016
ISSN: 1880-5981
DOI: 10.1186/s40623-016-0386-4