"Some kids are not ready to play with the idea of a seismic event," he said.

These successes apply to 400 seismic events since March 1981.

Over the years, most of the towers were lost due to war and seismic events.

Red represents a positive seismic event - blue is negative.

Think of all the seismic events to have shaken the world in the past eight years.

This time the tremors had the power of a seismic event.

A seismic event was registered at 6:38 in that area.

We simply don't have enough records from previous seismic events in this area.

"We learned from looking at every seismic event what the threats were," he said.

The zone averages about one seismic event every five days.