Results 21 to 30 of about 326 (156)
Geophysical Research Letters, Volume 48, Issue 19, 16 October 2021., 2021 Abstract From June 29 to July 1, 2015, a phreatic eruption occurred in Owakudani, the largest fumarole area in Hakone volcano, Japan. In this study, an interferometric synthetic aperture radar (InSAR) time series analysis of the Advanced Land Observing Satellite‐2 (ALOS‐2)/Phased Array type L‐band Synthetic Aperture Radar‐2 (PALSAR‐2) data was ...
Ryosuke Doke +2 more
wiley +1 more source
Tectonics, Volume 40, Issue 5, May 2021., 2021 Abstract Phreatic and hydrothermal eruptions are small energetic explosive events that generally have few to no precursors and represent a considerable hazard in tourist and urban areas. At the Campi Flegrei caldera, these events have occurred at the Solfatara volcano and have likely occurred at the nearby Pisciarelli site, where the most powerful ...
Roberto Isaia +5 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, Volume 22, Issue 4, April 2021., 2021 Abstract Marapi in Sumatra is characterized by frequent short‐lived explosions and small eruptions (Volcanic Explosivity Index 1–2) and in the past 250 years, the volcano has erupted >60 times. Recent volcanic bombs and the presence of broadband seismic stations lead us to reconstruct the plumbing system of the volcano through an interdisciplinary ...
D. Nurfiani +7 more
wiley +1 more source
Illegal Border Crossing: The Experience of Edo Period Travelers
Russian Japanology Review, 2021 Travel diaries of the Edo period contain records about border posts and descriptions of illegal border crossing. Travelers resorted to paying bribes, changing clothes, and going around border posts if they did not have a tegata document, or for other ...
A. A. Dudko
doaj +1 more source
Earth, Planets and Space, 2018 On 29 June 2015, a small phreatic eruption occurred at Hakone volcano, Central Japan, forming several vents in the Owakudani geothermal area on the northern slope of the central cones.
Ryokei Yoshimura +16 more
doaj +1 more source
Earth, Planets and Space, 2021 Since the beginning of the twenty-first century, volcanic unrest has occurred every 2–5 years at Hakone volcano. After the 2015 eruption, unrest activity changed significantly in terms of seismicity and geochemistry. Like the pre- and co-eruptive unrest,
Kazutaka Mannen +8 more
doaj +1 more source
Earth, Planets and Space, 2018 We successfully monitored the ground deformation of an eruption center during the 2015 phreatic eruption of Hakone volcano, Japan, using ground-based interferometric synthetic aperture radar (GB-InSAR).
Senro Kuraoka +3 more
doaj +1 more source
Earth, Planets and Space, 2018 The 2015 eruption of Hakone volcano was a very small phreatic eruption, with total erupted ash estimated to be in the order of only 102 m3 and ballistic blocks reaching less than 30 m from the vent.
Kazutaka Mannen +5 more
doaj +1 more source
Infrasonic wave accompanying a crack opening during the 2015 Hakone eruption
Earth, Planets and Space, 2018 To understand the initial process of the phreatic eruption of the Hakone volcano from June 29 to July 01, 2015, we analyzed infrasound data using the cross-correlation between infrasound and vertical ground velocity and compared the results of our ...
Yohei Yukutake, Mie Ichihara, Ryou Honda
doaj +1 more source
Direct and indirect luminescence dating of tephra: A review
Journal of Quaternary Science, Volume 35, Issue 1-2, Page 39-53, January-February 2020., 2020 ABSTRACT In Quaternary studies, tephras are widely used as marker horizons to correlate geological deposits. Therefore, accurate and precise dating is crucial. Among radiometric dating techniques, luminescence dating has the potential to date tephra directly using glass shards, volcanic minerals that formed during the eruption or mineral fragments that
Janina Johanna Bösken +1 more
wiley +1 more source