Early Indications of Earthquakes: A Step Towards Predictability?

The transcript discusses a massive earthquake in the Indian Ocean, highlighting the challenges of predicting such events. It mentions research on foreshocks in the Pacific Ocean, suggesting the potential for short-term earthquake prediction. The text also covers monitoring systems like those on California's San Andreas Fault and proposes similar systems on the East Pacific sea floor to provide early warnings, potentially minimizing loss of life.

What was the magnitude of the earthquake that caused significant destruction in the Indian Ocean region?

• 10.0

• 9.0

• 8.0

• 7.5

Which organization reported evidence of early indications called foreshocks?

• National Oceanic and Atmospheric Administration

• Southern California Earthquake Center

• Pacific Tsunami Warning Center

• United States Geological Survey

What is the term used for the ability to predict an earthquake shortly before it occurs?

• Long-term forecasting

• Short-term prediction

• Seismic monitoring

• Tectonic analysis

What is believed to cause both foreshocks and main tremors?

• Sudden tectonic shifts

• Volcanic activity

• Changes in atmospheric pressure

• Slow smooth sliding along the fault line

What is the purpose of monitoring systems like the one on the San Andreas Fault?

• To predict weather changes

• To provide early signs of a major quake

• To measure ocean currents

• To track wildlife movements