Eruption was a short-lived German krautrock or experimental music super group founded by former Tangerine Dream member and then current Kluster (3) member Conrad Schnitzler. Eruption performed free-form, improvisational, experimental music, some of which resembles industrial music. A few pieces do have discernible melodies and/or strong rhythmic elements, at times resembling Conrad Schnitzler's earlier work with Tangerine Dream on their "Electronic Meditation" album.

Eruption had a rapidly shifting lineup of musicians whom Schnitzler had met and played with at the Zodiak Free Arts Lab in the late 1960s and very early 1970s. At times Eruption included Klaus Schulze, Manuel Göttsching, and Hartmut Enke, who would go on to form the trio Ash Ra Tempel, Dieter Serfas of the jazz band Embryo (3), Michael Günther and Lutz Ulbrich of Agitation Free, Christa Runge, who had read the text on the first Kluster album, as well as members of Amon Düül. Conrad Schnitzler described Eruption this way: "So anyway we got 10 musicians together; rock musicians, freejazz and electronic musicians - all together. We did some really interesting things."

When Eruption went into the studio the lineup consisted of Schnitzler, Wolfgang Seidel, and Klaus Freudigmann. This lineup also assumed the Kluster name after the departure of Dieter Moebius and Hans-Joachim Roedelius. The recent releases by both Kluster and Eruption are drawn from tapes which survived in Fredigmann's attic for more than 30 years. The photo shows the three members reuinited recently listening to those tapes.