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News and Topics
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Aug 01, 2008 A new site of the strong-motion seisemograph network will be released in Aug.4th.
Mar 26, 2008 From 26th Mar. to 28th Mar., WWW/FTP services will be temporarily stopped due to maintenance.
Jan 25, 2008 From 09:00 26th Jan, 2008(JST).,WWW/FTP service will stop due to maintenance.
Oct 09, 2007 From 10:00 10th Oct, 2007(JST).,WWW/FTP service on Old K-NET will stop due to maintenance.
Sep 27, 2007 Announcement of WWW/FTP service at Sep 29, 2007.
Sep 10, 2007 From 15:00 to 17:00 11th Sep, 2007(JST).,WWW/FTP service on K-NET and a portal site will stop.
Sep 05, 2007 Mirror site and Old K-NET will stop at Sep 6, 2007.
Jul 19, 2007 Mirror site will stop at Jul 25, 2007.
Apr 04, 2007 WWW/FTP service will stop at Apr 8, 2007.
Apr 02, 2007 A portal site of the summarized strong-motion seismograph networks was released.
Mar 28, 2007 The source inversion of the 2007 Noto-Hanto earthquake (in Japanese).
Mar 25, 2007 The Strong-Motions of the 2007 Noto-Hanto earthquake (in Japanese).
Mar 25, 2007 Prompt report of the 2007 Noto-Hanto earthquake (in Japanese).
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K-NET Information
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K-NET is an observation network composed with about 1000 broadband
strong-motion seismographs, with a dynamic range up to acceleration of
4000 cm/sec/sec, deployed 25km intervals in nationwide of Japan. The
observed data and peak distribution maps are available as soon as an
earthquake happened, and you can download the data not manually checked.
Use this link or following ways to go to K-NET.
- If you use FTP, click here to login, or launch your own FTP-software to connect "www.k-net.bosai.go.jp".
- A mirror site of K-NET is here.
- Old K-NET site is here.
( old ftp )
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KiK-net information
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As the fundamental activities of the Headquarters for Earthquake
Research Promotion, Japan,
the high sensitivity seismograph(Hi-net) and the strong-motion
seismograph(KiK-net) across the all of Japan, have been deployed after
the 1995 Kobe earthquake, by National Research Institute for Earth
Science and Disaster Prevention (NIED).
Each site of the KiK-net is composed of a pair of strong-motion
seismographs installed at the well bottom, which is the same location as
the Hi-net sensors, and on the ground surface. Observed wave data,
distribution map of peak acceleration, etc., are available to the public.
If you use FTP, click here to login, or launch your own FTP-software to connect "ftp.kik.bosai.go.jp".
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| The NIED page
| Top page of National Research Institute for Earth Science and Disaster Prevision (NIED).
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High-Sensitivity seismograph network (Hi-net)
( in Japanese )
| The Hi-net is an observation network composed of about 800 high-sensitivity seismographs
deployed nationwide. The sensors were installed at a bottom of the borehole down to more than 100m depth.
The Hi-net is capable even detecting seismic motions that are too weak to be felt.
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| Broadband seismograph network (F-net)
| The F-net is an observation network composed of broadband seismographs deployed at
approximately 70 locations nationwide. The F-net is capable of accurately detecting slow ground motions
originating from remote seismic sources.
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| Japan Seismic Hazard Information Station (J-SHIS)
| The National Seismic Hazard Maps for Japan and data download is available.
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Copyright © National Research Institute for Earth Science and Disaster Prevention, All rights Reserved.
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