Tsunami Bomb was a punk rock band from Petaluma, California that was active between 1998 and October 2005 and released two studio albums and four EPs. They were founded by Dominic Davi who left in 2003. Their lineup upon disbanding consisted of Emily Whitehurst, Jay Northington, Matt Mckenzie, and Gabriel Lindeman. Members went on to perform with Nothington and The Action Design. They have since given one reunion performance on January 17, 2009 in Petaluma.

The band was started by bassist Dominic Davi, who enlisted Kristin McRory as Tsunami Bomb's original female vocalist. Davi met McRory in late 1997, when she joined the band Headboard on female vocals.
Davi and McRory left Headboard in February 1998, and played their first show as Tsunami Bomb on June 26, 1998 at the Fatty Mocha in Merced, CA.

Tsunami Bomb's original lineup consisted of five people, including a female keyboard player named Oobliette Sparks who also contributed vocals (and remained with the band until 2001). Gabriel Lindeman played drums for the band's first few shows, but he did not join the band full-time until 1999. Kristin McRory left Tsunami Bomb in late 1998, and Davi recruited Emily Whitehurst shortly thereafter (Emily's brother, Logan Whitehurst was Davi's roommate at the time). To add mystique and give her a more iconic presence, Davi and Whitehurst created the moniker "Agent M". Whitehurst was credited as Agent M almost exclusively until the breakup of the band.