A massive earthquake and subsequent tsunami off Russia in late July tested an experimental detection system that had deployed ...

What Is a Tsunami and How Does It Form? A tsunami is a series of ocean waves caused by a sudden disturbance, usually an underwater earthquake, that pushes a large amount of water up or down. Most ...

DEATH VALLEY, Nev. – A powerful earthquake centered along Russia’s eastern coastline sent seismic energy rippling across the globe on Tuesday, producing underground waves that impacted one of the most ...