Active fault database of Japan

What's New

2025/02/14

We have revised 51 behavioral segments shown below. The fault parameters and traces of 49 behavioral segments have been changed. According to the changes of 128-01 Sanageyama-kita, 128-02 Sanage-Sakaigawa, and 128-04 Obu, we have delated 128-03 Takahama. 073-02 Susugaya has been separated from 073-01 Isehara.

Tohoku　14 segments

Behavioral Segments		Before	After
024-01 Hanawa-higashi	Modified
025-01 Noshiro	Modified
026-01 Ukai	Modified
026-02 Hanamaki	Modified
026-03 Kitakami-nishi	Modified
028-01 Tazawako-toho	Modified
029-01 Senya	Modified
029-02 Kanazawa	Modified
029-03 Omoriyama	Modified
030-01 Kawafune	Modified
030-02 Warikurayama	Modified
031-01 Kitaguchi	Modified
032-01 Nakacho	Modified
032-02 Toridame	Modified

Chubu 16 segments

Behavioral Segments		Before	After
116-01 Agi	Shortened
116-02 Okudaira	Modified
116-03 Mitsumoriyama	Modified
116-04 Iinuma	Extended southward
116-05 Sogi	Shortened
124-01 Tegano	Deleted southern traces
124-02 Byobuyama	Extended
124-03 Onogawa	Modified
128-01 Sanageyama-kita	Modified
128-02 Sanage-Sakaigawa	Extended southwestward
128-03 Takahama	Deleted following revisions of surrounding segments
128-04 Obu	Extended southward
129-01 Yokosuka	Modified
129-02 Fukozu	Modified
156-01 Kagiya	Extended
157-01 Taketoyo	Deleted the northwestern traces
303-01 Kasahara	Shortened

Kanto　21 segments

Behavioral Segments		Before	After
061-01 Tokyowan-hokuen	Modified
062-01 Kamogawachikotai-kita	Re-evaluated as an active fault of activity grade C
063-01 Kamogawachikotai-minami	Re-evaluated as an active fault of activity grade C
065-01 Sekiya	Modified
066-01 Takasaki	Modified
066-02 Fukaya	Added southeastern traces
066-03 Ayasegawa	Extended
066-04 Hirai	Added a southeastern trace
068-01 Arakawa	Modified
069-01 Ogose	Modified
073-01 Isehara	Separated 073-02 Susugaya
073-02 Susugaya	New Separated from 073-01 Isehara
074-01 Kurokura	Modified
075-01 Kannawa	Modified
075-03 Shibusawa	Modified
077-01 Kinugasa	Modified
077-02 Kitatake	Deleted southern traces
077-03 Takeyama	Deleted northwestern traces Added a southeastern trace
273-01 Takahagi	Modified
277-01 Minamishitaura	Modified
295-01 Tokyowan-hokubu	Modified

2024/12/20

• We have added about 400 locality data. (About 200 newly added data and 200 updated data.)

2024/8/23

• The positions of 4 behavioral segments have been reconsidered and revised according to Takahiko INOUE and Yukinobu OKAMURA (2010）Explanatory notes of 1:200,000 marine geological map around the northern part of Noto Peninsula．Seamless geoinformation of coastal zone, "Northern coastal zone of Noto Peninsula", Numerical Geological Map S-1, Geological Survey of Japan. Parameters have been changed accordingly. The names of 3 of these behavioral segments have been changed along with the revisions.
  Northern Coastal Area of the Noto Peninsula:329-01 Monzen-oki　329-02 Saruyama-oki(former name Wajima-oki)　329-03 Wajima-oki (former name Machino-oki)　329-04 Suzu-oki (former name Noroshi-oki)　

  Modified Behavioral Segments

Behavioral Segments		before	after
329-01 Monzen-oki	Modified
329-02 Saruyama-oki	Modified Former name Wajima-oki
329-03 Wajima-oki	Modified Former name Machino-oki
329-04 Suzu-oki	Modified Former name Noroshi-oki

2024/6/28

• We have changed the contents in the comment box that would appear when you click on the maps of "Search for behavioral segment" and "Behavioral Segment Outline".

2024/04/26

• We have revised fault parameters and traces of 12 behavioral segments.

  Modified Behavioral Segments

Behavioral Segments		before	after
002-01 Kotanuka	Extended northeastward. Added new traces on the plains.
004-01 Kaiyo	Extended to northeastward and southwestward respctively.
004-02 Yoroushi	Extended southwestward.
027-01 Shizukuishibonchi-seien	Modified the south end.
204-01 Itsukaichi	Extended southward. Added parallel traces.
283-01 Tsutsuga	Extended to northeastward and southwestward respctively.
236-01 Oharako	Extended to northeastward and southwestward respctively.
335-01 Tokusa-Jifuku	Modified northeast and southwest ends respectively.
218-01 Futagawa	Extended northeastward. Traces are refined with reference to the distribution of surface earthquake faults from the 2016 Kumamoto earthquake.
218-02 Mifune	Modified the southwest end. Traces are refined with reference to the distribution of surface earthquake faults from the 2016 Kumamoto earthquake.
218-03 Yatsushiro	Modified the northeast end.
218-04 Ikenohara	Traces are refined based on geomorphological interpretation results.

2021/7/13

• The database has been updated with about 80 locality data.

2016/10/4

• The database has been updated with about 80 locality data.

2015/08/11

• The database has been updated with about 980 locality data.
• We have revised fault parameters and traces of behavioral segments.

  Modified Behavioral Segments

Behavioral Segments		before	after
018-01 Kuromatsunai	Modified
019-01 Hakodate-nishi	Modified
029-01 Sennya	Modified
029-02 Kanazawa	Modified
029-03 Omoriyama	Modified
084-01 Kamishiro	Modified
084-04 Gofukuji	Modified
093-01 Kurehayama	Modified
102-01 Inohana	Modified
102-02 Kosaka	Modified
120-01 Sami	Modified
121-01 Shirakawa	Modified (combined former 121-02)
121-02 Tashirosan	Deleted
136-01 Matsuoka	Modified
136-02 Kanazu	Modified
145-05 Chisato	Modified
145-06 Torido	Modified
148-01 Kaburagi	Modified
148-02 Tsubakizakatoge	Modified
148-04 Kajiya	Modified
148-06 Ayukawaoki	Newly added
153-01 Nosaka	Modified
153-02 Tairikudanagaien	Newly added
166-01 Shiroko-Noma	Modified
168-01 Mikata	Modified
171-03 Nakafuji	Modified
178-01 Uemachi	Modified
178-02 Sennan	Modified
178-03 Butsunenjiyama	Newly added
210-02 Kandamisaki	Modified
210-03 Kandamisaki-oki	Newly added
214-01 Nishiyama	Modified
214-02 Kamatoge	Newly added
214-03 Oshima-oki	Newly added
318-01 Oshima-oki	Deleted
215-01 Kego	Modified
218-05 Minamata-oki	Modified
220-01 Chijiwa	Modified
220-02 Fukae	Modified
231-01 Nokogirizaki-oki	Modified
276-01 Takadaheiya-seien	Modified
278-01 Urazoko-Yanagaseyama	Deleted (devided into 278-02,03)
278-02 Urazoko	Newly added
278-03 Yanagaseyama	Newly added
280-01 Gomura	Modified
280-03 Amino-oki	Newly added
280-04 Amino-oki-kita	Newly added
328-02 Bakkai-oki	Newly added
329-02 Wajima-oki	Newly added
329-03 Machino-oki	Newly added
329-04 Noroshi-oki	Newly added
330-01 Gentatsuse-nishi	Modified
330-02 Gentatsuse-higashi	Modified
337-01 Onishika-oki	Newly added
338-01 Echizennmisaki-oki-kita	Newly added
338-02 Echizenmisaki-oki-minami	Newly added
339-01 Shiraki-Nyu	Newly added
339-02 Nyu-oki	Newly added
340-01 Kyogamisaki-oki	Newly added
340-02 Urashimaguri	Newly added
341-01 Umi	Newly added
342-01 Hinatatoge-Okasagitoge	Newly added
343-01 Koshiki	Newly added
343-02 Kamikoshikijima	Newly added
325-01 Gotanda	Deleted
344-01 Ichiki	Newly added (former 325-01)
344-02 Koshikikaikyo	Newly added
344-03 Fukiagehama-oki	Newly added

2015/3/27

• We have added the layer of earthquake epicenters to the Google maps
   on "Search for behavioral segments".

2013/8/22

• Our web-site address has changed to https://gbank.gsj.jp/activefault/index_e_gmap.html.
• The database has been updated with about 1200 locality data.

2013/4/12-15

• The database was down for maintenence.

2012/02/28

• We have revised fault parameters and traces of behavioral segments.
• We have added the layer of geological map to the Google maps on "Search for behavioral segments".

  Modified Behavioral Segments

Behavioral Segments		before	after
009-01 Furano	Modified
009-02 Rokugo	Modified
015-02 Yufutsu	Modified
024-01 Hanawa-higashi	Modified
033-01 Kitayuri	Modified
035-01 Shinjobonchi	Modified
085-01 Sonekyuryo	Deleted (devided into 085-02,03)
085-02 Fuefuki	Newly added
085-03 Daibosatsurei-nishi	Newly added
108-02 Ogurogawa	Modified
108-03 Tagiri	Deleted (devided into 108-02,04)
108-04 Iida	Modified
192-01 Minato-Honjo	Modified
215-01 Kego	Modified
215-02 Genkaijima	Newly added
218-02 Mifune	Modified
218-03 Yatsushiro	Modified
220-03 Obama	Modified
220-04 Tachibanawan-minami	Newly added
234-01 Muikamachi	Deleted (devided into 234-02,03)
234-02 Koide	Newly added
234-03 Ishiuchi	Newly added
236-01 Oharako	Modified
239-01 Numata-Sunagawa	Deleted (devided into 239-02,03)
239-02 Numata	Newly added
239-03 Ebeotsu	Newly added
264-01 Sarobetsu-kita	Deleted
265-01 Sarobetsu-minami	Deleted
328-01 Sarobetsu	Newly added (combined 264-01,265-01)
268-01 Obanazawa	Modified
329-01 Monzen-oki	Newly added
330-01 Gentatsuse-nishi	Newly added
330-02 Gentatsuse-higashi	Newly added
331-01 Nichinanko	Newly added
332-01 Komachi-Ohdani	Newly added
333-01 Chojagahara-Yoshii	Newly added
334-01 Shimogo	Newly added
335-01 Tokusa-Jifuku	Newly added
336-01 Sakota-Ikumo	Newly added

2011/11/17

• We have released the English version of the Visualization System for Subsurface Structures.

2011/7/8

• The database has been updated with about 700 locality data.

2011/1/31

• We have introduced Google Maps to search behavioral segment.
• We have added the explanation about methods of calculating representative values for behavioral segment parameters.
• We have added the page flow diagram of this database.
• Behavioral segments download(kmz and ESRI shapefile) are not available now. Please contact us.

2010/8/20

• The database has been updated with about 700 locality data.

2010/7/21

• Locality data(location, research method, displacement, paleofaulting event, etc.)is available.

2009/9/11

• Fault parameters download(csv) is available on "Segment Search Result".

2009/07/23

• Behavioral segments download(kmz and ESRI shapefile) are available here.

2008/03/11

• Introduced Google Maps.

2007/03/26

• HomePage update.

2006/12/20

• HomePage was renewed.

2005/12/01

• Publish an English version.