Underwater earthquakes unleash devastating tsunamis
Underwater earthquakes trigger tsunamis by abruptly displacing massive ocean volumes, unleashing waves that can devastate coastlines thousands of miles away.
Tsunamis are colossal ocean waves primarily caused by powerful underwater earthquakes. These seismic shifts along fault lines violently displace vast amounts of water, creating waves that begin subtly in the deep ocean but swell dramatically as they near coastlines, sometimes reaching over 30 meters high. The 2004 Indian Ocean earthquake, a magnitude 9.1 event, tragically demonstrated this power, generating waves that killed over 230,000 people across 14 countries. These waves can travel at speeds up to 800 kilometers per hour, highlighting the immense energy released and the global reach of these natural disasters.