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Kyoshin Net

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Journal Article

Kyoshin Net (K-NET) Available to Purchase

Shigeo Kinoshita
Published: 01 July 1998
Seismological Research Letters (1998) 69 (4): 309–332.
DOI: https://doi.org/10.1785/gssrl.69.4.309
... records as soon as possible. The National Research Institute for Earth Science and Disaster Prevention (NIED) of the Science and Technology Agency was given the responsibility to implement the program. Kyoshin Net (K-NET) is a product yielded from this one-year program. The word Kyoshin stands...
View PDF for article title, <span class="search-highlight">Kyoshin</span> <span class="search-highlight">Net</span> (K-<span class="search-highlight">NET</span>)
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Empirical amplification factors of the Kyoshin net (K‐NET) and Kiban–Kyoshin network (KiK‐net; surface) sites in the Kanto region. These are in linear range, because they are based on the records of small and medium earthquakes. The colored lines indicate the seven sites with lower amplification (i.e., nonlinear effects are relatively smaller than other sites). The color version of this figure is available only in the electronic edition.

Empirical amplification factors of the Kyoshin net (K‐NET) and Kiban–Kyoshi... Available to Purchase

Published: 13 September 2023
Figure 4. Empirical amplification factors of the Kyoshin net (K‐NET) and Kiban–Kyoshin network (KiK‐net; surface) sites in the Kanto region. These are in linear range, because they are based on the records of small and medium earthquakes. The colored lines indicate the seven sites with lower
Image
The spatial distribution of (a) 1740 earthquake events and (b) Kyoshin net (K‐NET) station used in this work. The varying sizes of red circles represent earthquakes of different magnitudes. The color version of this figure is available only in the electronic edition.

The spatial distribution of (a) 1740 earthquake events and (b) Kyoshin net ... Available to Purchase

Published: 07 February 2024
Figure 1. The spatial distribution of (a) 1740 earthquake events and (b) Kyoshin net (K‐NET) station used in this work. The varying sizes of red circles represent earthquakes of different magnitudes. The color version of this figure is available only in the electronic edition.
Journal Article

A Site‐Response Model for the Vertical Component of Ground‐Motion Prediction Equation Using a New Site‐Response Parameter T V H Available to Purchase

Shihong Bai, John X. Zhao
Published: 12 September 2023
Bulletin of the Seismological Society of America (2023) 113 (6): 2689–2702.
DOI: https://doi.org/10.1785/0120220103
... velocity profiles between 30 m and H B for a deep soil site can be expensive, whereas obtaining bedrock depth based on the geotechnical description of borehole data may be relatively easy. We used velocity profiles from the Kyoshin net and Kiban–Kyoshin net strong‐motion networks and found...
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View PDF for article title, A Site‐Response Model for the Vertical Component of Ground‐Motion Prediction Equation Using a New Site‐Response Parameter T V H
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Journal Article

A Hybrid Approach for Broadband Simulations of Strong Ground Motion: The Case of the 2008 Iwate–Miyagi Nairiku Earthquake Available to Purchase

Luca Moratto, Alessandro Vuan, Angela Saraò
Published: 18 August 2015
Bulletin of the Seismological Society of America (2015) 105 (5): 2823–2829.
DOI: https://doi.org/10.1785/0120150054
... to reproduce, within the known source and structure constraints, the Kiban–Kyoshin network (KiK‐net) and Kyoshin net (K‐NET) accelerometric data recorded during the 2008 Iwate–Miyagi Nairiku earthquake ( M w 7.0). The results show that our approach is able to simulate satisfactorily the observed waveforms...
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View PDF for article title, A Hybrid Approach for Broadband Simulations of Strong Ground Motion: The Case of the 2008 Iwate–Miyagi Nairiku Earthquake
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Journal Article

Deep‐Neural‐Network‐Based Estimation of Site Amplification Factor from Microtremor H/V Spectral Ratio Available to Purchase

Da Pan, Hiroyuki Miura, Tatsuo Kanno, Michiko Shigefuji, Tetsuo Abiru
Published: 05 April 2022
Bulletin of the Seismological Society of America (2022) 112 (3): 1630–1646.
DOI: https://doi.org/10.1785/0120210300
... horizontal‐to‐vertical spectral ratio (MHVR) based on deep neural network (DNN) model. We analyzed site amplifications obtained from generalized spectral inversion technique and microtremor data observed at Kyoshin net and Kiban–Kyoshin network sites in Chugoku district, western Japan. The DNN model...
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View PDF for article title, Deep‐Neural‐Network‐Based Estimation of Site Amplification Factor from Microtremor H/V Spectral Ratio
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Journal Article

Damping Modification Factors for Horizontal and Vertical Acceleration Spectra from Offshore Ground Motions in the Japan Sagami Bay Region Available to Purchase

Jinjun Hu, Mingji Liu, Jingyang Tan
Published: 05 August 2022
Bulletin of the Seismological Society of America (2022) 112 (5): 2621–2641.
DOI: https://doi.org/10.1785/0120210327
... offshore and 4033 onshore ground‐motion records from the Kyoshin net, the difference between offshore and onshore DMFs are revealed by DMF ratios and t tests and whether site conditions need to be incorporated in offshore DMF models are determined. The between‐event residual distribution shows that DMFs...
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View PDF for article title, Damping Modification Factors for Horizontal and Vertical Acceleration Spectra from Offshore Ground Motions in the Japan Sagami Bay Region
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Journal Article

Empirical Ground-Motion Relations for Subduction-Zone Earthquakes and Their Application to Cascadia and Other Regions Available to Purchase

Gail M. Atkinson, David M. Boore
Published: 01 August 2003
Bulletin of the Seismological Society of America (2003) 93 (4): 1703–1729.
DOI: https://doi.org/10.1785/0120020156
... from events of moment magnitude ( M ) 5-8.3 occurring in subduction zones around the world, including both interface and in-slab events. The 2001 M 6.8 Nisqually and 1999 M 5.9 Satsop earthquakes are included in the database, as are many records from subduction zones in Japan (Kyoshin-Net data), Mexico...
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View PDF for article title, Empirical Ground-Motion Relations for Subduction-Zone Earthquakes and Their Application to Cascadia and Other Regions
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Image
Comparisons of the predicted spectra for an event Mw 7.0 event with a depth and a distance of 20 km for four SC IV sites, (a) TS=0.67  s and TVS30=0.181  s (a hypothetical site), (b) TS=0.64  s and TVS30=0.70  s (Kyoshin net [K‐net] site HKD161), (c) TS=1.92  s and TVS30=0.31  s, (Kiban–Kyoshin network [KiK‐net] site KSRH05), and (d) TS=2.18  s and TVS30=0.94  s, (KiK‐net site IKRH02). The color version of this figure is available only in the electronic edition.

Comparisons of the predicted spectra for an event M w  7.0 event wi... Available to Purchase

Published: 21 July 2022
= 0.70    s (Kyoshin net [K‐net] site HKD161), (c)  T S = 1.92    s and T VS 30 = 0.31    s , (Kiban–Kyoshin network [KiK‐net] site KSRH05), and (d)  T S = 2.18    s and T VS 30 = 0.94    s , (KiK‐net site IKRH02). The color version
Image
(a) Locations of epicenters of seismic events used in the present analysis. The color and size of each circle indicate the depth and magnitude of the event, respectively. The rectangle indicates the area in panel (b), corresponding to the Shimousa region. (b) Depth to seismic bedrock (P‐wave velocity [VP] = 5.5 km/s, S‐wave velocity [VS] = 3.2 km/s) in Shimousa region obtained from Japan Seismic Hazard Information Station (J‐SHIS; National Research Institute for Earth Science and Disaster Resilience [NIED], 2019b). The locations of the strong‐motion stations of Kyoshin net (K‐NET)/Kiban–Kyoshin network (KiK‐net; NIED, 2019a) used in this study are indicated by triangles. The top and bottom values for each station indicate the depth (km) estimated in this study and that provided by J‐SHIS, respectively. The color version of this figure is available only in the electronic edition.

(a) Locations of epicenters of seismic events used in the present analysis.... Available to Purchase

Published: 31 August 2023
stations of Kyoshin net (K‐NET)/Kiban–Kyoshin network (KiK‐net; NIED, 2019a ) used in this study are indicated by triangles. The top and bottom values for each station indicate the depth (km) estimated in this study and that provided by J‐SHIS, respectively. The color version of this figure is available
Image
Map of the study regions and epicenters of the selected earthquakes (colored circles): (a) earthquakes that occurred in Japan and (b) earthquakes that occurred in China. Our database includes earthquakes with moment magnitudes (5.0≤Mw≤9.1) and focal depths (H ≤ 60 km). The moment magnitudes and the focal depths of all the earthquakes are coded by the size and color, respectively, of the circles. CSMNC, China Strong‐Motion Network Center; K‐NET, Kyoshin net. The color version of this figure is available only in the electronic edition.

Map of the study regions and epicenters of the selected earthquakes (colore... Available to Purchase

Published: 19 August 2022
). The moment magnitudes and the focal depths of all the earthquakes are coded by the size and color, respectively, of the circles. CSMNC, China Strong‐Motion Network Center; K‐NET, Kyoshin net. The color version of this figure is available only in the electronic edition.
Image
Locations of Kiban–Kyoshin network (K‐NET) and Kiban–Kyoshin network (KiK‐net) sites in Chugoku district, Japan. The inset shows the location of Chugoku district in Japan. Symbols represent peak frequency, fM (Hz), of microtremor horizontal‐to‐vertical (H/V) spectral ratio (MHVR). NC means that peak was not confirmed in the MHVR. Diagonal crosses indicate sites where microtremor was not measured.

Locations of Kiban–Kyoshin network (K‐NET) and Kiban–Kyoshin network (KiK‐n... Available to Purchase

Published: 05 April 2022
Figure 1. Locations of Kiban–Kyoshin network (K‐NET) and Kiban–Kyoshin network (KiK‐net) sites in Chugoku district, Japan. The inset shows the location of Chugoku district in Japan. Symbols represent peak frequency, f M (Hz), of microtremor horizontal‐to‐vertical (H/V) spectral ratio
Image
(a) Locations of the Kyoshin network (K‐NET) stations used in this study and the epicenters of the studied earthquakes. (b) Distributions of the number of records in the training dataset (blue‐solid circles) and test dataset (red‐solid circles) as a function of the epicentral distance and magnitude.

(a) Locations of the Kyoshin network (K‐NET) stations used in this study an... Available to Purchase

Published: 15 September 2021
Figure 1. (a) Locations of the Kyoshin network (K‐NET) stations used in this study and the epicenters of the studied earthquakes. (b) Distributions of the number of records in the training dataset (blue‐solid circles) and test dataset (red‐solid circles) as a function of the epicentral distance
Image
Map of the selected Kiban–Kyoshin network (KiK‐net) stations and earthquake epicenters. The color version of this figure is available only in the electronic edition.

Map of the selected Kiban–Kyoshin network (KiK‐net) stations and earthquake... Available to Purchase

Published: 04 May 2021
Figure 1. Map of the selected Kiban–Kyoshin network (KiK‐net) stations and earthquake epicenters. The color version of this figure is available only in the electronic edition.
Image
Location of the Kego fault (solid line at the southwestern side of the station FKO006) and accelerograms recorded at stations surrounding the epicenter (pointed out by a star) of the Fukuoka earthquake. Stations FKOxxx are stations from Kyoshin Network (K-NET) and stations FKOHxx or SAGHxx are stations from Kiban Kyoshin Network (KiK-net). For both K-NET and KiK-net stations, accelerograms on the left-hand side represent the north–south ground motion, and accelerograms on the right-hand side represent east–west ground motion. For KiK-net stations, accelerograms at the bottom are downhole records.

Location of the Kego fault (solid line at the southwestern side of the stat... Available to Purchase

Published: 01 February 2010
Figure 2. Location of the Kego fault (solid line at the southwestern side of the station FKO006) and accelerograms recorded at stations surrounding the epicenter (pointed out by a star) of the Fukuoka earthquake. Stations FKOxxx are stations from Kyoshin Network (K-NET) and stations FKOHxx
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Location of the event and stations used in this study: selected 39 collocated Kiban–Kyoshin network (KiK‐net)/Kyoshin network (K‐NET) and Global Navigation Satellite Systems (GNSS) or Global Positioning System (GPS) stations up to 200 km epicentral distance. The label is: name of GNSS—name of strong motion—separation in meters. The fault‐slip model of Asano and Iwata (2016) is shown, the epicentral distance of 100 km is marked by dashed circle marks, and inset shows the regional location in the state of Japan. USGS, U.S. Geological Survey. The color version of this figure is available only in the electronic edition.

Location of the event and stations used in this study: selected 39 collocat... Available to Purchase

Published: 18 August 2020
Figure 1. Location of the event and stations used in this study: selected 39 collocated Kiban–Kyoshin network (KiK‐net)/Kyoshin network (K‐NET) and Global Navigation Satellite Systems (GNSS) or Global Positioning System (GPS) stations up to 200 km epicentral distance. The label is: name of GNSS
Image
Data distribution for Mw,F−net versus (a) hypocentral and (b) Joyner–Boore distance for each Kiban–Kyoshin network (KiK‐net) subset. (c,d) The distribution of sites VS30 and VSDH.

Data distribution for M w , F − net versus (a) hypocentral a... Available to Purchase

Published: 28 June 2023
Figure 1. Data distribution for M w , F − net versus (a) hypocentral and (b) Joyner–Boore distance for each Kiban–Kyoshin network (KiK‐net) subset. (c,d) The distribution of sites V S 30 and V S DH .
Image
Maximum brightness results for the examined datasets: (a) map‐view composite image of all timesteps for the borehole data by keeping the maximum brightness value for each grid point, a composite cross‐section of the three planes for ±2 km width, and the maximum brightness values per timestep. (b–d) The same images but for the surface (KiK‐net), the enhanced surface (KiK‐net and Kyoshin network [K‐NET]), and the corrected dataset respectively. The color version of this figure is available only in the electronic edition.

Maximum brightness results for the examined datasets: (a) map‐view composit... Available to Purchase

Published: 17 March 2025
timestep. (b–d) The same images but for the surface (KiK‐net), the enhanced surface (KiK‐net and Kyoshin network [K‐NET]), and the corrected dataset respectively. The color version of this figure is available only in the electronic edition.
Image
Maximum brightness results for the examined datasets: (a) map‐view composite image of all timesteps for the borehole data by keeping the maximum brightness value for each grid point, a composite cross‐section of the three planes for ±2 km width, and the maximum brightness values per timestep. (b–d) The same images but for the surface (KiK‐net), the enhanced surface (KiK‐net and Kyoshin network [K‐NET]), and the corrected dataset respectively. The color version of this figure is available only in the electronic edition.

Maximum brightness results for the examined datasets: (a) map‐view composit... Available to Purchase

Published: 17 March 2025
timestep. (b–d) The same images but for the surface (KiK‐net), the enhanced surface (KiK‐net and Kyoshin network [K‐NET]), and the corrected dataset respectively. The color version of this figure is available only in the electronic edition.
Journal Article

An open-source site database of strong-motion stations in Japan: K-NET and KiK-net (v1.0.0) Available to Purchase

Chuanbin Zhu, Graeme Weatherill, Fabrice Cotton, Marco Pilz, Dong Youp Kwak, M.EERI, Hiroshi Kawase
Published: 01 August 2021
Earthquake Spectra (2021) 37 (3): 2126–2149.
DOI: https://doi.org/10.1177/8755293020988028
...Chuanbin Zhu; Graeme Weatherill; Fabrice Cotton; Marco Pilz; Dong Youp Kwak, M.EERI; Hiroshi Kawase This article describes an open-source site database for a total number of 1742 earthquake recording sites in the K-NET (Kyoshin network) and KiK-net (Kiban Kyoshin network) networks in Japan...
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View PDF for article title, An open-source site database of strong-motion stations in Japan: K-<span class="search-highlight">NET</span> and KiK-<span class="search-highlight">net</span> (v1.0.0)
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