Characterized by their muscular guitar sound and the powerful vocals of frontwoman Jenny Toomey, the aptly named Tsunami were among the most important and original bands to emerge from the American indie scene of the 1990s; the motivating force behind the highly regarded Simple Machines label, Tsunami were noted for their sociopolitical activism and unwavering commitment to D.I.Y. principles, which established them among the most respected voices in the alternative community. The band was formed in Arlington, VA, in 1990 by Toomey and guitarist Kristin Thomson, who together had founded Simple Machines as a result of their constant frustrations with music industry machinations. Toomey, a veteran of such groups as Geek and Slack, soon persuaded bassist pal Andrew Webster to relocate to Arlington and join the fledgling band, and with the addition of drummer John Pamer, the original Tsunami lineup was complete.