Seismic Seconds

Seismic Seconds is a documentary television series that aired in 2001 on the National Geographic Channel and later that year on Channel 4. The program analysed the causes of six incidents, five involving the loss of human life. The better-known sequel to Seismic Seconds, Seconds From Disaster, was spun off from the series.

In the National Geographic version, the narrator says in the voiceover:

Disasters don't just happen. They're the result of a sequence of events, locked together in time. The science behind what went wrong is hidden in those seismic seconds.

The beginning of this voiceover:

Disasters don't just happen. They're the result of a sequence of events

was later used and modified for the series Seconds From Disaster:

Disasters don't just happen. They're the result of a critical chain of events.