Results 21 to 30 of about 630 (129)

Radiocarbon Calibration for Japanese Wood Samples [PDF]

open access: yes, 2003
The radiocarbon content of Japanese cedars was measured by accelerator mass spectrometry for decadal tree-ring samples from the period of 240 BC to AD 900. Conventional gas counting was also used for part of the samples.
Imamura, Mineo,   +4 more
core   +2 more sources

Remote triggering of seismicity at Japanese volcanoes following the 2016 M7.3 Kumamoto earthquake [PDF]

open access: yes, 2016
The M[JMA]7.3 Kumamoto earthquake occurred on April 16, 2016, in the western part of Kyushu, at a depth of 12 km, on an active strike-slip fault. Here, we report on a relatively widespread activation of small remote earthquakes, which occurred as far as ...
Anca Opris   +3 more
core   +2 more sources

Monitoring ground deformation of eruption center by ground-based interferometric synthetic aperture radar (GB-InSAR): a case study during the 2015 phreatic eruption of Hakone volcano

open access: yesEarth, 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

Estimation of Groundwater Residence Time Using the 36Cl Bomb Pulse [PDF]

open access: yes, 2011
We propose a methodology for estimating the residence time of groundwater based on bomb-produced 36Cl. Water samples were collected from 28 springs and 2 flowing wells located around Mt. Fuji, Central Japan.
Nagashima Yasuo   +6 more
core   +1 more source

Direct and indirect luminescence dating of tephra: A review

open access: yesJournal 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

Eastward Inclination of Hakone Volcano and Tanna Fault

open access: yesJournal of Geography (Chigaku Zasshi), 2011
It is demonstrated that the eastern side of the Tanna fault has subsided relative to the western side using digital mesh data of geographic altitudes. The estimated subsidence is concordant with accumulated displacements of the Tanna fault and the fault slip at the 1930 Kita-Izu earthquake.
Akio YOSHIDA   +2 more
openaire   +2 more sources

Probabilistic Volcanic Ash Hazard Analysis (PVAHA) II: assessment of the Asia-Pacific region using VAPAH [PDF]

open access: yes, 2016
Monthly mean wind direction and wind speed aggregated for a 64-year period from NCEP reanalysis data for 60 NCEP grid points used for the Asia-Pacific case study.
A. N. Bear-Crozier   +4 more
core   +8 more sources

Precursory tilt changes associated with a phreatic eruption of the Hakone volcano and the corresponding source model

open access: yesEarth, Planets and Space, 2018
The 2015 unrest of the Hakone volcano in Japan, which began on April 26, generated earthquake swarms accompanied by long-term deformation. The earthquake swarm activity reached its maximum in mid-May and gradually calmed down; however, it increased again
Ryou Honda   +5 more
doaj   +1 more source

Precursory ground deformation of the 2018 phreatic eruption on Iwo-Yama volcano, revealed by four-dimensional joint analysis of airborne and spaceborne InSAR

open access: yesEarth, Planets and Space, 2020
We present detailed maps of local-scale 3D deformation preceding the 2018 phreatic eruption at Iwo-yama volcano (south of Kyushu Island, Japan), using a combination of airborne and spaceborne Interferometric Synthetic Aperture Radar (InSAR) data.
Shohei Narita   +6 more
doaj   +1 more source

Correction: Doke, R., et al. Very Local Subsidence near the Hot Spring Region in Hakone Volcano, Japan, Inferred from InSAR Time Series Analysis of ALOS/PALSAR Data. Remote Sens. 2020, 12, 2842

open access: yesRemote Sensing, 2020
The authors wish to make the following corrections to this paper [...]
Ryosuke Doke   +2 more
doaj   +1 more source

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