*Otomo, Kato, and Uemura at Gospel in Senkawa, Tokyo
- April 6
- *The Best of Indies concert in Hong Kong as Ground Zero, with Otomo and two local musicians, Eric Wong (bass) and Mayfair Z (drums)
- April 17
- *Otomo, Kato, and Uemura at Gospel in Senkawa, Tokyo
Very active on the Tokyo scene, with guest appearances by Eye Yamatsuka (vocal), Shuichi Chino (keyboards), Junji Hirose (sax), and Tony Buck (drums)
- May 27
- *Otomo, Kato, and Uemura, with guests Chino, Hirose, and Michiaki Tanaka (percussion) at Shinjuku Pit Inn in Tokyo
- Jun 13
- *At Buddy in Ekoda, Tokyo
- July 12
- *At Buddy in Ekoda, Tokyo
- August 6
- Recording for Fun House Inc., which was included in Now's the Time Workshop, Vol. 2, released in November of the same year
- August 15
- *At Manda-la II in Kichijoji, Tokyo
- September 2
- *Otomo, Kato, Uemura, with guests Yamatsuka (vocal), Chino, Hirose, Tanaka, Hideaki Sasaki (videos) at Shinjuku Pit Inn in Tokyo
- October 19
- *At Chocolate City in Yoyogi, Tokyo
- November 1
- *At Manda-la II in Kichijoji, Tokyo
- November 22
- *Ground-O Orchestra at Shinjuku Pit Inn in Tokyo, with Otomo (guitar, turntable, conducting, arrangement), Makigami (vocal), Tenko (vocal), Kazuhiro Nomoto (saxes, horn arrangement), Hirose (sax), Sachi Hayasaka (sax), Masami Shinoda (saxes), Chino (keyboards), Kuroda (keyboards), Ryoji Hojito (piano), Natsuki Kido (guitar), Kato (bass), Uemura (drums), Buck (drums, sampler), and theater group Rinkogun (voices)
1992
- January 18
- *Otomo, Kato, and Uemura, with guests John Zorn (sax) and Mick Harris (vocal) at the Knitting Factory in New York
- February 27
- *Otomo, Kato, and Uemura, with guests Yamatsuka (vocal) and Hojito (keyboards) at Penny Lane 24 in Sapporo
Addition of Chino (keyboards), and Hirose (sax) as regular members
- February-May
- Recording of first album, GROUND-ZERO (God Mountain), which was released in February of the following year
- May 5
- *Otomo, Kato, Uemura, Chino, and Hirose at Beam Hall in Shibuya, Tokyo
- May 10
- *Ground Zero Orchestra at Beam Hall in Shibuya, Tokyo, with Otomo (conductor), group A: Naruyoshi Kikuchi (sax), Kido (guitar), Hojito (piano), Joji Sawada (bass), and Buck (drums); and group B: Kumiko Takara (marimba), Michael Sheridan (guitar), Hirose, Kato, and Uemura
Kato moves to New York, is replaced by Kazuyoshi Kimoto (bass)
- August 1
- *Otomo, Hirose, Hoppy Kamiyama (keyboards), Kimoto, Uemura, and Hedeaki Sasaki (videos) at Shinjuku Pit Inn
Addition of Sasaki (videos) as a regular member
- December 7
- *Otomo, Hirose, Chino, Kimoto, Uemura, and Sasaki at Kid-Airac Hall in Tokyo
1993
- March 5
- *Otomo, Hirose, Chino, Kimoto, Uemura, and Sasaki, with guest Seiichi Yamamoto (guitar) at Shibuya Quattro in Tokyo
- March 12
- *Otomo, Hirose, Chino, Kimoto, Uemura, and Sasaki, with guest Yamamoto at Shinsaibashi Quattro in Osaka
- March 13
- *Otomo, Hirose, Chino, Kimoto, Uemura, and Sasaki at Muse Hall in Kyoto
- March 14
- *Otomo, Hirose, Chino, Kimoto, Uemura, and Sasaki at Nagoya Quattro
- May 21
- *At Buddy in Ekoda, Tokyo
- May 27
- *Otomo, Hirose, Chino, Kato, and Uemura at Das Festival in der Röhre in Germany
- May 30
- *Otomo, Hirose, Chino, Kato, and Uemura at the Moers New Jazz Festival in Germany
- June 24
- *Otomo, Hirose, Chino, Kimoto, Uemura, and Sasaki, with guest Samm Bennett (percussion) at Shinjuku Pit Inn in Tokyo
- Summer
- Recording of second album, Null & Void (Tzadik), which was released in 1995
- August 29
- *Otomo, Hirose, Chino, Kato, and Uemura at the International Now Music Festival Sapporo
- October 24
- *Otomo, Kato, and Uemura at the STEIM Festival in Amsterdam
- December 9
- *Otomo, Hirose, Chino, Kimoto, Uemura, and Sasaki at Shinjuku Pit Inn in Tokyo
Temporary disbanding after the concert on December 9
1994
Membership change: Kazuhisa Uchihashi (guitar), Mitsuru Nasuno (bass), Masaki Shimizu (bass), Yasuhiro Yoshigaki (drums), Uemura (drums), in addition to Otomo
- August 11
- *At Manda-la II in Kichijoji, Tokyo
- September 7
- *At Arena Hall in Futagotamagawaen in Tokyo
1995
Shimizu replaced by Sachiko M (sampler)
- January 22
- *At Shinjuku Pit Inn in Tokyo
- March 9
- *At Manda-la II in Kichijoji, Tokyo
- March 11-16
- Recording of third album, Revolutionary Pekinese Opera (Trigram), which was released the same year; and fourth album, Revolutionary Pekinese Opera Version 1.28 (ReR), which was released the following year
- April 2
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, and Sachiko M at TAKTLOS Festival in Switzerland
- April 6
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, and Sachiko M at the Knitting Factory in New York
- April 8
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, and Sachiko M at Lounge AX in Chicago
- April 19
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, and Sachiko M, with guest Heiner Goebbels (piano), at Shinjuku Pit Inn in Tokyo
- May 22
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, and Sachiko M at Festival International de Musique Actuelle de Victoriaville in Canada
- May 27
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, and Sachiko M at Musique Action in Nancy, France
- August 8
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, and Sachiko M at Shinsaibashi Quattro in Osaka
- August 9
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, and Sachiko M at Takutaku in Kyoto
- August 10
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, and Sachiko M in Okayama
- August 11
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, and Sachiko M at Bad Lands in Hiroshima
- August 17
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, and Sachiko M, with guests Naruyoshi Kikuchi (saxes) and Yumiko Tanaka (gidayu-shamisen) at La Mama in Shibuya, Tokyo
- August 20
- *Otomo, Uchihashi, Nasuno, Yoshigaki, and Sachiko M, with guest Yumiko Tanaka, at International Now Music Festival Sapporo
1996
- April 28
- *At La Mama in Shibuya, Tokyo
Addition of Kikuchi (saxes) and Tanaka (gidayu-shamisen) as regular members, to form an 8-piece unit
- April 30
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, Sachiko M, Kikuchi, and Tanaka at Shinjuku Pit Inn in Tokyo
- December 12
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, Sachiko M, Kikuchi, and Tanaka at 20000V in Koenji, Tokyo
1997
- January 5-15
- Recording of fifth and sixth albums, Consume Red (Ground Zero / Project: Consume, Vol. 1) (Sank-Ohso Discs) and Plays Standards (Nani Records), which were both released in April 1997
- March 25
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, Sachiko M, Kikuchi, and Tanaka at Shinjuku Pit Inn in Tokyo
- April 14
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, Sachiko M, Kikuchi, and Tanaka at Shinjuku Pit Inn in Tokyo
- April 15
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, Sachiko M, Kikuchi, and Tanaka at Shinjuku Pit Inn in Tokyo
Announcement of the disbanding of Ground Zero after the European tour in May
- May 6 and 11
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, Sachiko M, Kikuchi, Tanaka, and Yoshiaki Kondo (engineer) at the Angelica Festival in Bologna
- May15
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, Sachiko M, Kikuchi, Tanaka, and Kondo at the International New Music Festival Ring Ring in Belgrade
- May 20
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, Sachiko M, Kikuchi, Tanaka, and Kondo at FLEX in Vienna
- May 22
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, Sachiko M, Kikuchi, Tanaka, and Kondo at the Tolbooth Theatre in Stirling, Scotland
- May 24
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, Sachiko M, Kikuchi, Tanaka, and Kondo at the LMC Festival in London (BBC Radio Session)
- May 26
- *Otomo, Uchihashi, Nasuno, Uemura, Yoshigaki, Sachiko M, Kikuchi, Tanaka, and Kondo at the LMC Festival in London
- July
- Release of Conflagration (Ground Zero / Project: Consume, Vol. 2) (Sank-Ohso Discs)
- Autumn
- Remixes of tunes from Cassiber's live performance in Tokyo, 1992, under the name Ground Zero, which were included in the two-CD set Cassiber Live in Tokyo (off note) released in December of the same year
1998
- March 8
- *The final Ground Zero concert at On-Air West in Shibuya, Tokyo, with members Otomo, Hirose(sax), Kikuchi (sax), Masahiko Okura (sax), Chino (keyboards), Tatsuki Masuko (keyboards), Sachiko M (sampler), Kazunao Nagata (electronics), Tanaka (gitayu-shamisen), Nasuno (bass), Uemura (drums), Yoshigaki (drums) and Kondo (engineer)
- April
- Release of Consummation. (Ground Zero / Project: Consume, Vol. 3) (Sank-Ohso Discs)
1999
- May
- Release of the final album, Last Concert (AMOEBiC), which was recorded live on March 8, 1998
Last updated: July 17, 1999