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>>Past Large Earthquakes  
  (Dec.18,2024) System maintenance on Dec 21th.
  (Dec.11,2024) Site HKD058(ABASHIRI) has moved.
  (Oct.23,2024) System maintenance on Nov 1th, Nov 2th.
  (Jun.20,2024) Sites SZOH21(MORI) and SZOH22(KUROMATA) have been added.
  (Jun.20,2024) Soil data of TCGH19(OHTAWARA2) has been added.
  (May.31,2024) System maintenance on Jun 3th.
  (May.01,2024) Site TCGH19(OHTAWARA2) has been added.
  (Apr.01,2024) Site KGS008(KAMO) has moved.
  (Nov.17,2023) Site HKD182(HIROSHIMA) has moved.
  (Nov.17,2023) Site AIC013(NAGASHINO) has moved.
  (Nov.17,2023) Site HKD059(KOSHIMIZU) has moved.
  (Nov.17,2023) Site FKS020(INAWASHIRO) has moved.
  (Nov.9,2023) Correction of soil condition information of KiK-net stations.
  (Oct.25,2023) System maintenance on Nov 2th, Nov 3th.
  (Sep.01,2023) Sites TKY030(AKASAKA) and TKY031(SENDAGAYA) have been added.
  (May.16,2023) Corrected record time format for Specially Released Data.
  (Apr.05,2023) Site TKY024(OKUDO) has moved.
  (Mar.22,2023) Site CHB009(CHIBA) has moved.
  (Feb.13,2023) Site SAG006(TAKEO) has moved.
  (Jan.11,2023) Site HKD047(MOMBETSU) has moved.
  (Nov.1,2022) System maintenance on Nov 4th, Nov 5th.
  (Oct.19,2022) Site HKD122(IWAMIZAWA) has moved.
  (Oct.19,2022) Site OIT005(YABAKEI) has moved.
  (Aug.24,2022) System maintenance on Aug 29th.
  (Aug.2,2022) Additional release of digital data of source inversion results
  (Jul.25,2022) Site HKD183(JOZANKEI) has moved.
  (Jun.17,2022) System maintenance on Jun 21th, Jun 27th.
  (May.09,2022) Site WKY006(GOBO) has moved.
  (Mar.30,2022) Update of latitude, longitude and elevation information of K-NET stations (completion of republication process).
  (Mar.23,2022) System maintenance on Mar 23th.
  (Feb.01,2022) Update of latitude, longitude and elevation information of K-NET stations.
  (Jan.06,2022) Site GNM010(TATEBAYASHI) has moved.
  (Nov.4,2021) System maintenance on Nov 5th, Nov 6th.
  (Sep.21,2021) Correction of scale factor information of KiK-net stations.
  (Sep.21,2021) Correction of strong motion data at WKYH08(NAGA).
  (Aug.30,2021) Correction of latitude and longitude information of K-NET stations.
  (Jun.24,2021) Soil data of KMMH18(ASO2) has been added.
  (May.20,2021) Site AOM015(IKARIGASEKI) has moved.
  (May.20,2021) Site SZO008(NUMAZU) has moved.
  (May.8,2021) System maintenance on May 8th.
  (Feb.18,2021) System maintenance on Feb 24th.
  (Nov.5,2020) System maintenance on Nov 6th, Nov 7th.
  (Oct.22,2020) The data ware revised.
  (Oct.19,2020) Long Period Ground Motion (LPGM) Monitor
  (Sep.09,2020) Site MYG012(SHIOGAMA) has moved.
  (Sep.09,2020) Site AOM003(OHHATA) has moved.
  (Sep.09,2020) Site OKY010(BIZEN) has moved.
  (Jun.18,2020) Announcement of HTTPS download site
  (Mar.30,2020) Additional release of digital data of source inversion results
  (Mar.23,2020) Announcement of Always on SSL (HTTPS) and FTP site stop on Mar 25th
  (Feb.20,2020) System maintenance on Feb 26th.
  (Feb.14,2020) Site FKI003(FUKUI) has moved.
  (Feb.6,2020) Site KMM008(UTO) has moved.
  (Jan.8,2020) mirror site will close at the end of January 2020.(remind)
  (Dec.23,2019) Announcement of Always on SSL (HTTPS) and FTP site stop
  (Nov.5,2019) System maintenance on Nov 8th, Nov 9th.
  (Oct.25,2019) Site KMM012(YATSUSHIRO) has moved.
  (Oct.25,2019) Site TYM005(SHINMINATO) has moved.
  (Sep.24,2019) Kyoshin monitor URL (remind).
  (Sep.4,2019) Site MYG006(FURUKAWA) has moved.
  (Aug.28,2019) System maintenance on Sep 4th.
  (Aug.27,2019) Kyoshin monitor URL.
  (Aug.26,2019) mirror site will close at the end of January 2020.
  (Jul.19,2019) System maintenance on Jul 23th.
  (Jul.10,2019) Site KNG010(HIRATSUKA) has moved.
  (Jul.10,2019) Site KGW007(HIKETA) has moved.
  (Jul.10,2019) Site NGN008(UEDA) has moved.
  (Jul.10,2019) Site YMG004(NAGATO) has moved.
  (Jul.8,2019) Site OSK001(NOSE) has moved.
  (May.10,2019) Data download on May 9th and 10th.
  (Apr.26,2019) Announcement of Mirror site stop
  (Apr.15,2019) K-NET and KiK-net have got DOI.
  (Apr.12,2019) System maintenance on Apr 15th.
  (Apr.11,2019) System maintenance on Apr 11th.
  (Apr.10,2019) Site IBR006(MITO) has moved.
  (Mar.29,2019) Data download will be stopped on Mar 29th.
  (Mar.25,2019) Data download will be stopped on Mar 26th.
  (Mar.14,2019) System maintenance on Mar 18th and 19th.
  (Mar.8,2019) System maintenance on Mar 13th.
  (Mar.6,2019) System maintenance on Mar 7th.
  (Feb.26,2019) System maintenance on Feb 27th and 28th, Mar 5th.
  (Feb.13,2019) System maintenance on Feb 20th.
  (Feb.8,2019) Kyoshin monitor integration.
  (Jan.29,2019) Announcement of Mirror site stop
  (Feb.1,2019) System maintenance on Feb 1th.
  (Jan.21,2019) Announcement of Mirror site stop
  (Dec.20,2018) Site HKD075(HAMANAKA) has moved.
  (Dec.20,2018) Site HKD161(KIKONAI) has moved.
  (Nov.7,2018) System maintenance on Nov 9th, Nov 10th.
  (Sep.20,2018) Announcement of Mirror site stop
  (May.17,2018) System maintenance on May 25th.
  (Apr.27,2018) Announcement of Mirror site stop
  (Apr.23,2018) Site KMM009(YABE) has moved.
  (Apr.12,2018) Site MYZ010(KOBAYASHI) has moved.
  (Nov.29,2017) Site MYG019(NARUKOONSEN) has moved.
  (Nov.6,2016) System maintenance on Nov 10th, Nov 11th.
  (Oct.04,2017) Site FKI001(MIKUNI) has moved.
  (Aug.2,2017) System maintenance on Aug 5th.
  (Jul.07,2017) Site MYZ005(HYUGA) has moved.
  (Apr.27,2017) Site NGN025(TENRYU) has moved.
  (Apr.20,2017) Announcement of Mirror site stop
  (Apr.18,2017) The data ware revised.
  (Mar.28,2017) Site HRS020(INNOSHIMA) has moved.
  (Mar.3,2017) System maintenance on Mar 7th, Mar 14th.
  (Feb.28,2017) Additional release of digital data of source inversion results
  (Dec.27,2016) Site EHM001(IYOMISHIMA) has moved.
  (Dec.15,2016) Site KOC017(OTOYO) has moved.
  (Oct.24,2016) Site CHB011(HASUNUMA) has moved.
  (Oct.7,2016) Site OKY001(YUBARA) has moved.
  (Sep.28,016) Release of digital data of source inversion results
  (Sep.6,2016) System maintenance on Sep 9th, Sep 10th.
   (Apr.27th,2016) Announcement of Mirror site stop
  (Mar.28,2016) Site HRS011(FUCHUH) and KMM019(HONDO) have moved.
  (Mar.11,2016) System maintenance on Mar 15th.
  (Feb.15,2016) The guidance of the updating user account 2016
  (Dec.15,2015) System maintenance on Dec 16th.
  (Sep.20,2015) System maintenance on Sep 25th.
  (Nov.13,2015) System maintenance on Nov 17th.
  (Oct.30,2015) Soil data of YMG019(KAMINOSEKI) was revised.
  (Sep.09,2015) System maintenance on Sep 12th.
  (Sep.09,2015) Site IBR012(ISHIOKA) has moved.
  (Aug.26,2015) Soil data of OIT007(KITSUKI) was revised.
  (Aug.07,2015) Site OIT007(KITSUKI) has moved.
  (Jul.9,2015) System maintenance on Jul 15th.
  (May.28,2015) Site FKS014(YAMATSURI) has moved.
  (May.19,2015) Site FKI011(IZUMI) has moved.
  (May.15,2015) Site KMM006(KUMAMOTO) and OIT010(OHITA) have moved.
  (Apr.30,2015) Soil data of GNM014(SAKAMOTO) was revised.
   (Apr.28th,2015) Announcement of Mirror site stop
  (Apr.27,2015) Site AICH23(TOKONAME2) has been added.
  (Apr.21,2015) Site KGW003(MARUGAME) has moved.
  (Apr.10,2015) Site GNM014(SAKAMOTO) and AIC010(TSUKUDE) have moved.
  (Feb.16,2015) Please renew your user account.
   (Nov.17th,2014) System maintenance of mirror site
  (Oct.08,2014) Site KNG007(FUJISAWA) and ISK009(NANATSUKA) and AOM007(MINAMIDOHRI) have moved.
  (Sep.25,2014) System maintenance on Sep 27th.
  (Sep.01,2014) Site SZO010(GOTEMBA) has moved.
  (July.09,2014) Site SZO020(KAWANE) and FKS028(TADAMI) have moved.
  (Jun.03,2014) Site KGS002(IZUMI) has moved.
  (May.12,2014) Site KMM009(YABE) has moved.
   (Apr.30th,2014) Announcement of Mirror site stop
  (Apr.07,2014) Site SIT008(KASUKABE) has moved.
  (Apr.03,2014) Site IWT024(NINOHE) has moved.
  (Mar.04,2014) Please renew your user account.
  (Feb.12,2014) System maintenance of mirror site
  (Feb.07,2014) System maintenance on Feb 14th, Feb 20th, Mar 5th, Mar 12th.
  (Feb.06,2014) Site HKD005(SARUFUTSU) has moved.
  (Dec.03.2013)Information about Scheduled Maintenance
  (Oct.18,2013) Site KOC016(TOSASHIMIZU) has moved.
  (Oct.8th,2013) Announcement of WWW/FTP service at Oct 12th, 2013.
  (Jul.01,2013) Site TKY005(MACHIDA) has moved.
  (Jun.3rd,2013) Site MYGH14(RIFU) has been added.
  (May.10th,2013) Soil data of MYG018(ISATOMAE) and MYG019(NARUKOONSEN) have been released.
  (May.10th,2013) Soil data of IWT004(TAROH), MYG008(KITAKAMI), and IWT006(YAMADA) have been released.
   (Apr.26th,2013) Announcement of Mirror site stop
  (Apr.26,2013) Site IWT019(IWAIZUMI) has moved.
  (Apr.26,2013) Soil data of IWT010(ICHINOSEKI), IWT013(TOHNO) and MYG010(ISHINOMAKI) was revised.
  (Apr.23,2013) We add Soil data of Site IWTH28(ICHINOSEKI-W2), SZOH53(KAKEGAWA3) and SZOH54(HATSUSHIMA2).
  (Mar.12th,2013) Site IBRH06(KITAIBARAKI2) and CHBH06(SOUSA) have been added.
  (Mar.4th,2013) Please renew your user account.
  (Feb.22th,2013) Site MYG018(ISATOMAE) and MYG019(NARUKOONSEN) have been added.
  (Feb. 21th,2013) Site IWT004(TAROH), MYG008(KITAKAMI), and IWT006(YAMADA) have moved.
  (Feb.20th,2013) Site MYGH13(MINAMISANRIKU) has been added.
  (Jan.11,2013) Soil data of MYG004(TSUKIDATE) was opened.
  (Jan.08,2013) Site MYG004(TSUKIDATE) has moved.
  (Dec.18,2012) Site KGW001(TONOSHOH) has moved.
  (Nov.20,2012) Release of the strong-motion records organized for the two large aftershocks of the 2011 Off the Pacific Coast of Tohoku earthquake
  (Nov.16,2012) Site IWT010(ICHINOSEKI) has moved.
  (Nov.14,2012) Site AKT007(KOTOOKA) has moved.
  (Nov.01,2012) Soil data of HRS019(KURE) was opened.
  (Sep.14,2012) Site HRS019(KURE) has moved.
  (Sep.14,2012) Site MYG010(ISHINOMAKI) has moved.
  (Aug.31,2012) Site GNM007(SHIBUKAWA) has moved.
  (Aug.23,2012) Site HRS008(MUKAIHARA) has moved.
  (Aug.22,2012) Site NIG021(TOHKAMACHI) has moved.
  (Jun.15th,2012) Site IWT013(TOHNO) has moved.
   (Apr.27th,2012) Announcement of Mirror site stop
  (Apr. 6th, 2012) A unified Website for K-NET and KiK-net opens
  (Mar.1st,2012) Please renew your user account.
  (Dec.14th,2011) Site HKD014(NUMAKAWA) has moved.
  (Dec.2th,2011) Announcement of WWW/FTP service at Dec 5th, 2011.
  (Nov.25th,2011) Site FKI001(MIKUNI) has moved.
  (Nov. 9th,2011) Site EHM016(IYO) and AIC008(SHITARA) and OIT003(BUNGOTAKADA) have moved.
  (Jun.24th,2011) Site ISK015(OHMACHI) was added.
  (Jun.23th,2011) Announcement of the K-NET Mirror Site stop.
  (Apr.22th,2011) About aftershock data of the 2011 Off the Pacific Coast of Tohoku earthquake.
  (Apr.18th,2011) Announcement of WWW/FTP service at Apr 23, 2011.
  (Mar.1st,2011) Please renew your user account.
  (Jan.13th,2011) Site GIF017(IBIGAWA) and OSK008(KISHIWADA) have moved.
  (Jan.7th,2011) Site GIF020(GIFU) has moved.
  (Dec.14th,2010) About the public withdrawal of some data.
  (Sep.8th,2010) Site TKY012(HACHIJOH) and KGW004(TAKAMATSU) have moved.
  (Jul.23th,2010) We add Soil data of OSKH05.
  (Jul.13th,2010) Announcement of WWW/FTP service at Jul 16, 2010.
  (Jun.18th,2010) 5 sites were added.
  (Jun.3rd,2010) Site KOC011(YUSUHARA) has moved.
  (Sep.25th,2009) Site KGS028(KAMIYAKU) has moved.
  (Aug.10th,2009) Site TKY029(MIYAKE) was added.
  (Jun.30th,2009) We add Soil data of NGNH54.
  (Jun.26th,2009) We modified Soil data of NIGH11.
  (Jun.25th,2008) We added velocity data file of KYTH08.
  (Mar.2nd,2009) Please renew your user account.
  (Mar.2nd,2009) We modified latitude,longitude and altitude data of AKTH15,AKTH16 and ATKTH18.
  (Feb.26th,2009) We modified altitude data of CHBH20.
  (Feb.25th,2009) We modified Soil data and velocity data file of ISKH04.
  (Feb.13th,2009) We add Soil data of CHBH20.
  (Jan.13th,2009) Site NGN016(FUJIMI) has moved.
  (Dec.9th,2008) We add Soil data of GNMH06, IBRH08, IBRH10.
  (Oct.29th,2008) Site KYT015(HIROGAWARA) was added.
  (Aug.4th,2008) Updated version of SMDA2 was released.
  (Aug.4th,2008) A new site of the strong-motion seisemograph network was released.
  (Aug.1st,2008) A new site of the strong-motion seisemograph network will be released in Aug.4th.
  (Jul.25th,2008) We modified latitude and longitude data of AOM002,AOM011,HYG024.
  (Apr.15th,2008) Site EHM015(NAGAHAMA) has moved.
  (Mar.27th,2008) Site NIG019(OJIYA) has moved.
  (Mar.3rd,2008) Please renew your user account.
  (Oct.25th,2007) Site HKD148(KUROMATSUNAI) and SIT009(KAWAGOE) have moved.
  (Jul.27th,2007) Site MIE009(MATSUZAKA) and SZO011(FUJINOMIYA) have moved.
  (Apr.5th,2007) Site IBR004(OHMIYA) have moved.
  (Apr.2nd,2007) A portal site of the strong-motion seismograph networks was released.
  (Apr.2nd,2007) K-NET URL was changed.
  (Mar.15th,2007) Site TKY010(NIIJIMA) have moved.
  (Mar.1th,2007) Please renew your user account.
  (Feb.19th,2007) The guidance of the user account continuation procedure.
  (Feb.5th,2007) Mirror site set up.
  (Feb.1st,2007) Mirror site will be set up.
  (Dec.27th,2006) Site FKO001(GENKAI) and OIT013(INUKAI) have moved.
  (Dec.7th,2006) Old K-NET FTP Service has been terminated.
  (Oct.18th,2006) Old K-NET www/ftp server will close at Mar 2007.
  (Aug.24th,2006) The new K-NET website has been renewed..
  (Aug.18th,2006) Site YMG019(KAMINOSEKI) has moved.
  (Aug.18th,2006) Site KMM021(AMAKUSA) has moved.
  (Jun.29th,2006) Updated version of SMDA2 was released.
  (Jun.9th,2006) We modified soil condition gif of HKD015.
  (Apr.12th,2006) Site FKI007(TSURUGA) has moved.
  (Mar.06th,2006) The guidance of the user account continuation procedure.
  (Feb.15th,2006) Site AIC017(TAHARA) has moved.
  (Feb.15th,2006) Site HRS010(SERA) has moved.
  (Nov.11th,2005) Site MIE007(HAKUSAN) has moved.
  (Apr.08th,2005) Site KMM016(HITOYOSHI) has moved.
  (Mar.22th,2005) About max acceleration in Data list
  (Mar.01th,2005) Announcement of the K-NET Mirror Site#1 abolition.
  (Mar.01th,2005) The guidance of the user account continuation procedure.
  (Feb.18th,2005) We had a site (SZO028 KAWANA)
  (Jan.28th,2005) We modified soil condition gif of SAG002 and MYG012.
  (Dec.15th,2004) We modified latitude data of AOM029.
  (Nov.18th,2004) Site IWT019(IWAIZUMI) has moved.
  (Nov.10th,2004) Site AIC004(NAGOYA) has moved.
  (Nov.02th,2004) We modified soil condition gif of NIG018.
  (Oct.20th,2004) We modified latitude data of SIG007.
  (Oct.07th,2004) Site ISK013(SHIRAMINE) and KGS031(YAMATO) have moved.
  (Aug.04th,2004) Site CHB030 and TKY019 have removed.
  (Jul.12th,2004) Site HKD086(CHOKUBETSU) has moved.
  (Jun.01st,2004) About new K-NET www server.
  (Mar.08th,2004) Site MYG011(OSHIKA) and MYG012(SHIOGAMA) have moved.
  (Jan.15th,2004) The guidance of the user account continuation procedure.
  (Nov.14th,2003) Site TTR004(SHIKANO) has moved.
  (Jul.1st,2003) We had started to distribute SMDA2(Strong-Motion Data Analysisi 2).
  (Jun.13th,2003) Announcement of the K-NET Mirror Site#2 abolition.
  (May.21th,2003) Movement of Site
  (May.01th,2003) We modified latitude data of TKY019.
  (Mar.3th,2003) Please renew your user account.
  (Apr.2th,2002) Site SIG007(OUMIHACHIMAN) has moved.
  (Apr.05th,2002) Soil data of KMM014(ITSUKI) was modefied.
  (Apr.2th,2002) Site KMM014(ITSUKI) has moved.
  (Oct.23th,2001) Movement of Site
  (Apr.13,2001) Renewal of Kyoshin-Net WWW/FTP service
  (Oct.30th,2000) Movement of NAR004(HAIBARA)
  (Oct.26th,2000) Movement of MYZ019(KITAGOH)
  (Oct.6th,2000) Restart FTP Service of K-NET Control Center.
  (2000/9/27) Movement of ISK003(WAJIMA)
  We had 31 new sites.
  (Jan.18,2000)Here is moved site list
  (Jul.13,1999) Restart Service of K-NET Mirror Site#1
  (Sep.18,1998) Information of IWT012(KITAKAMI) and NIG010(NIIGATA) sites
  (Sep.10) Site HKD002(SOUYAMISAKI) has moved.
  Information of HKD002(SOUYAMISAKI) and HKD181(EBETSU) sites
  Information of NAR006(KAWAKAMI) site
  We had a new site (SZO027 NISHIIZU)
  Information of EHM015(NAGAHAMA) site
  Finish modifying data of KGS002(IZUMI)
  Movement of YMN011(ASHIYASU) and MYZ012(TAKASAKI)
  Polarity of seismograms obtained at the KGS002(IZUMI) site
  We had a new site (CHB023 TATEYAMA)
  K-NET Viewer has been improved.
  DATA DOWNLOAD will be added.
  TEXT-ONLY EDITION (no picture, no cgi) will be added.
  We will start mirror sites.
  Notice of change the soil condition (SZO001)
  Strong-motion data is now available by the anonymousFTP service.
  Announcement for the anonymous FTP service
  Announcement for retrieving the soil condition data of all sites
  Announcement for retrieving the soil condition data of all sites
  Comment on the strong-motion data
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