MOWLAS: NIED observation network for earthquake, tsunami and volcano
Abstract National Research Institute for Earth Science and Disaster Resilience (NIED)
integrated the land observation networks established since the 1995 Kobe earthquake with …
integrated the land observation networks established since the 1995 Kobe earthquake with …
Offshore ground motion characteristics on the horizontal PGA, spectral acceleration, frequency content and significant duration from the 2021 Mw 7.1 and 2022 Mw 7.4 …
J Tan, J Hu - Soil Dynamics and Earthquake Engineering, 2023 - Elsevier
The two large offshore earthquakes that occurred in Japan's eastern Fukushima region on
February 13, 2021, Mw 7.1 and March 17, 2022, Mw 7.4 are the two largest offshore …
February 13, 2021, Mw 7.1 and March 17, 2022, Mw 7.4 are the two largest offshore …
Influence of seawater depth on offshore ground motion characteristics and seismic responses of sea-crossing cable-stayed bridges
B Chen, B Wang, Z Ma, Y Du, C Li - Ocean Engineering, 2023 - Elsevier
This paper studies the effect of seawater depth on offshore earthquake motion
characteristics and seismic response of bridges. By analyzing the offshore seismic data …
characteristics and seismic response of bridges. By analyzing the offshore seismic data …
Nonlinear earthquake response of marine sediments with distributed acoustic sensing
Soft sediment layers can significantly amplify seismic waves from earthquakes. Large
dynamic strains can trigger a nonlinear response of shallow soils with low strength, which is …
dynamic strains can trigger a nonlinear response of shallow soils with low strength, which is …
Strong motions on land and ocean bottom: comparison of horizontal PGA, PGV, and 5% damped acceleration response spectra in northeast Japan and the Japan …
YP Dhakal, T Kunugi, W Suzuki… - Bulletin of the …, 2021 - pubs.geoscienceworld.org
ABSTRACT A large‐scale permanent ocean‐bottom seismograph network, named S‐net,
has been established in the Japan Trench area and consists of 150 observatories equipped …
has been established in the Japan Trench area and consists of 150 observatories equipped …
Estimation of source, path, and site factors of S waves recorded at the S-net sites in the Japan Trench area using the spectral inversion technique
YP Dhakal, T Kunugi, H Yamanaka, A Wakai… - Earth, Planets and …, 2023 - Springer
S-net is a large-scale ocean bottom (OB) network in the Japan Trench area, consisting of
inline-type 150 observatories equipped with seismometers and pressure gauges. Among …
inline-type 150 observatories equipped with seismometers and pressure gauges. Among …
Early tsunami detection with near‐fault ocean‐bottom pressure gauge records based on the comparison with seismic data
A Mizutani, K Yomogida… - Journal of Geophysical …, 2020 - Wiley Online Library
Offshore real‐time ocean bottom networks of seismometers and ocean bottom pressure
(OBP) gauges have been recently established such as DONET and S‐net around the …
(OBP) gauges have been recently established such as DONET and S‐net around the …
Seismic response characteristics of offshore sites in the Sagami Bay, Japan—Part I: Comparison of spectral inversion and ratio under weak motions
L Fu, C Su, L Jin, X Liu, X Li - Soil Dynamics and Earthquake Engineering, 2024 - Elsevier
Understanding offshore site amplification (AF) characteristics is crucial for marine
engineering. Thus far, the spectral ratio (SR) has been widely used to analyze offshore AF …
engineering. Thus far, the spectral ratio (SR) has been widely used to analyze offshore AF …
High-frequency S and S-coda waves at ocean-bottom seismometers
S Takemura, K Emoto, L Yamaya - earth, planets and space, 2023 - Springer
To clarify the characteristics of high-frequency (> 1 Hz) S and S-coda waves at ocean-bottom
seismometers (OBSs), we analyzed seismograms observed at permanent OBSs and inland …
seismometers (OBSs), we analyzed seismograms observed at permanent OBSs and inland …
A centrifuge study on the effect of the water cover on the ground motion of saturated marine sediments
JY Lan, J Liu, T Wang, KC Diwakar, MW Naqvi… - Soil Dynamics and …, 2022 - Elsevier
The dynamic characteristics and ground motion of saturated marine sediments in the sea
area play an important role in the assessment of seismic safety and risk in geotechnical and …
area play an important role in the assessment of seismic safety and risk in geotechnical and …