Where and when an earthquake will strike remains one of geology's greatest mysteries. Could modern science ever predict them?
- Where and when an earthquake will strike remains a mystery.
- Most fault lines are now mapped.
- Electromagnetic fields surrounding fault lines emit light just before an earthquake.
- Nowcasting is used to give vital warning minutes before an earthquake.
An earthquake is a sudden phenomenon.
Seismologists - geologists who study earthquakes - have no way of knowing exactly when or where the next one will hit.
Earthquakes occur along fault lines - cracks in the Earth's crust caused by shifting tectonic plates.
Many of these have been mapped across the world.
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