A visit through Texas' Fault Line cave has become one of Texas' most interesting natural attractions. Years of research on the Balcones Fault Line is presented to visitors in a most interesting arrangement which amazes, entertains and educates, with unparalleled examples of nature's forces. Tours, which begin every 15 minutes during Summer hours and every 30 minutes during Winter hours, exit the cave by way of an elevator, to rise above the ground into the Tejas Observation Tower. Visitors are provided an unequalled view of the magnitude of the prehistoric earthquake. Looking north and south, one can see the actual separation point betwen the Texas Hill Country's Edwards Plateau an the vast Gulf Coastal Plains of Texas.
Visitors can view the bed of the ocean that vanished millions of years ago.
Here are some other sites that discuss earthquakes in more detail.