The San Andreas Fault

California is one of the most active earthquake regions in the world. The San Andreas Fault, a 1,300-kilometer-long fracture zone in the earth's crust, runs through the cities of San Francisco and Los Angeles. Scientists fear a major earthquake. The San Andreas Fault is currently the most strongly observed geological phenomenon in the world. Scientists have long feared an earthquake so strong that it could mean the death of thousands of people. Economic damage, running into the billions, would also result. The documentary shows the scientific efforts being made to predict the unpredictable. International seismologists are studying the fault to make more accurate forecasts. The aim is also to reduce the risks for people.