Researchers at Lawrence Livermore National Laboratory have leveraged the world's fastest supercomputer, El Capitan, to enhance tsunami forecasting. Using over 43,500 AMD Instinct MI300A Accelerated Processing Units, they solved a billion-parameter Bayesian inverse problem in under 0.2 seconds, achieving a 10-billion-fold speedup. This real-time tsunami prediction system draws on advanced physics simulations, potentially revolutionizing emergency responses and saving lives during imminent threats like earthquakes.