Though not entirely surprising after similar delays were announced in Japan and Europe, Sony confirmed today that MotorStorm Apocalypse has been delayed indefinitely in North America due to the earthquake in Japan. It was set to come out April 12.
It's unclear if the delay is due to supply issues, but some early reviews have already hit. Sony could be making the decision to push the game due to sensitivity reasons; after all, it is about an earthquake that makes the California Bay Area into a wasteland. We'll keep an eye out for a new release date.