The movement of seawater in a tsunami generates a magnetic field that travels ahead of changes in sea level, which could help us predict and prepare for it
Seconds count when it comes to tsunami alerts, and scientists may have found a warning sign that can be detected even earlier than sea level rises: the magnetic fields created by these gigantic rushes of waves.
Scientists have uncovered a new way tsunamis might be better predicted ahead of time, showing how the magnetic fields they generate can be detected before the massive, devastating waves make it to shore.