It travels at the speed of sound, which varies at different altitudes.
The shockwave from a nuclear blast can travel at speeds up to several thousand meters per second (m/s), depending on the size and yield of the explosion. This rapid expansion of the shockwave creates destructive effects such as extreme air pressure changes and structural damage.
The shockwave from an atomic bomb can travel at the speed of sound in air, which is around 1,125 feet per second (343 meters per second). This means that the shockwave can travel over great distances in a short amount of time, causing widespread destruction.
get.adobe.com/shockwave
Use something like VNC or Windows Remote Desktop to access a computer that *does* have the Shockwave plugin installed. I've used this, for example, to access iSketch from my HP Touchpad, a system for which there is no Shockwave plugin available. Note that you need a reliably fast connection on both ends for this to be practical, however.
shockwave
Adobe Shockwave animation, made in Adobe Director. Originally Macromedia Shockwave and later Shockwave Flash (Flash was acquired by Macromedia from FutureWave Software).
The Shockwave Rider was created in 1975.
NWA Shockwave was created in 2001.
NWA Shockwave ended in 2007.
Shockwave Assault happened in 1995.
Shockwave - Dreamworld - was created in 2011.
Syracuse Shockwave was created in 2011.