Fellow riders aboard the roller coaster involved in a fatal weekend accident at the Expoland amusement park in Suita, Osaka Prefecture, recounted Monday the moment their experience with contrived terror turned real.

All remember the terrible shaking that accompanied Saturday's accident, when Yoshino Kogawara, 19, was killed. The car she was riding, the second from the front on the Fujin Raijin II standup roller coaster, derailed and hit a guardrail.

A 25-year-old man from Fukui Prefecture, in the car behind the one carrying Kogawara, said he started to feel strong vibrations and hear loud noises when the coaster was about halfway through the 1,050-meter course.