Results 1 to 10 of about 121 (106)

Shallow Volcanic Earthquakes in the Owakudani Geothermal Area, Hakone Volcano, Japan

Earth, Planets and Space
Hakone volcano, located in central Japan, produced a small phreatic eruption in June 2015. Although seismic activity in the Hakone region is generally low, the area experiences episodic earthquake swarms approximately once every few years. In the volcano,
Ryo Kurihara, Yutaka Nagaoka
exaly   +3 more sources

Harmonic tremor from the deep part of Hakone volcano

Earth, Planets and Space, 2022
The feeding system of magmatic fluid from the volcanic root to a shallow magma reservoir remains a poorly understood issue. Seismic events, including volcanic tremors and low-frequency earthquakes, in a deep part beneath volcanos are key observations for
Yohei Yukutake, Ryou Honda, Motoo Ukawa, Kei Kurita   +3 more
doaj   +3 more sources

Very Local Subsidence Near the Hot Spring Region in Hakone Volcano, Japan, Inferred From InSAR Time Series Analysis of ALOS/PALSAR Data

Remote Sensing, 2020
Monitoring of surface displacement by satellite-based interferometric synthetic aperture radar (InSAR) analysis is an effective method for detecting land subsidence in areas where routes of leveling measurements are undeveloped, such as mountainous areas.
Ryosuke Doke
exaly   +3 more sources

Observing Posteruptive Deflation of Hydrothermal System Using InSAR Time Series Analysis: An Application of ALOS-2/PALSAR-2 Data on the 2015 Phreatic Eruption of Hakone Volcano, Japan

Geophysical Research Letters, 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, Kazutaka Mannen, Kazuhiro Itadera   +2 more
exaly   +2 more sources

Contribution of aseismic slips to earthquake swarms at the Hakone volcano

Earth, Planets and Space
Recent studies have proposed the contribution of aseismic slip (AS) to earthquake swarms. We investigated the role of AS in earthquake swarms that occurred in 2009, 2015, and 2019 at the Hakone volcano, central Japan, through highly resolved hypocenter ...
Tetsuro Kawai, Yohei Yukutake, Ryosuke Doke, Ryou Honda   +3 more
doaj   +3 more sources

GNSS Observation and Monitoring of the Hakone Volcano and the 2015 Unrest

Journal of Disaster Research, 2018
In recent years, earthquake swarm activities have occurred at the Hakone Volcano in the western area of Kanagawa Prefecture, Japan, with a frequency of once in several years. Global Navigation Satellite System (GNSS) observations have detected the inflation of volcanic edifice during these activities.
Masatake Harada, Ryosuke Doke
exaly   +2 more sources

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   +2 more sources

Numerical Simulation of the Hydrothermal System of Hakone Volcano

Journal of Volcanology and Geothermal Research
Kazutaka Mannen, Nobuo Matsushima
exaly   +2 more sources

Upward Earthquake Swarm Migration in the Northeastern Noto Peninsula, Japan, Initiated From a Deep Ring‐Shaped Cluster: Possibility of Fluid Leakage From a Hidden Magma System

Journal of Geophysical Research: Solid Earth, Volume 128, Issue 6, June 2023., 2023
Abstract This study describes an ongoing intense earthquake swarm in the crust of the northeastern Noto Peninsula, Japan, that began around the end of 2019. Fluid movement related to volcanic activity is often involved in earthquake swarms in the crust. However, no volcanic activity has occurred in this region since the Middle Miocene (15.6 Ma).
Keisuke Yoshida, Masaoki Uno, Toru Matsuzawa, Yohei Yukutake, Yusuke Mukuhira, Hiroshi Sato, Takeyoshi Yoshida   +6 more
wiley   +1 more source

High‐Resolution InSAR Reveals Localized Pre‐Eruptive Deformation Inside the Crater of Agung Volcano, Indonesia

Journal of Geophysical Research: Solid Earth, Volume 128, Issue 5, May 2023., 2023
Abstract During a volcanic crisis, high‐rate, localized deformation can indicate magma close to the surface, with important implications for eruption forecasting. However, only a few such examples have been reported, because frequent, dense monitoring is needed.
M. J. W. Bemelmans, J. Biggs, M. Poland, J. Wookey, S. K. Ebmeier, A. K. Diefenbach, D. Syahbana   +6 more
wiley   +1 more source