Record-breaking ocean drilling reveals why Japan's 2011 tsunami was so deadly
Researchers discovered a thin, weak layer of clay-rich sediment beneath the Japan Trench that allowed the 2011 earthquake to rupture closer to the seafloor. This geological feature explains the unprecedented seafloor displacement that triggered the massive tsunami.
Why it matters
This discovery improves the scientific understanding of megathrust earthquakes and helps refine forecasting models for future natural disasters.
Researchers have uncovered a hidden feature beneath the Pacific Ocean that helps explain why Japan's devastating 2011 earthquake and tsunami became so destructive. The discovery also offers new clues that could improve forecasts of future megaquakes and tsunamis.
The report is a straightforward summary of geological research published in a scientific journal.
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