A 7.8-magnitude earthquake struck off the coast of Sumatra, an island in western Indonesia, according to the U.S. Geological Survey (USGS).
Tsunamis are a series of massive waves that ripple out from the earthquake, volcanic eruption, landslide or underwater detonation that caused them. These huge waves can travel thousands of miles across ocean basins. While out at sea, wave heights are small, but as a tsunami approaches shore, the rise of the continental slope means water levels are shallower, and the wave begins to narrow and become higher. Read below for the latest news on tsunamis and tsunami research.
Sometime in the past 8,000 years, a meteor may have hit the Indian Ocean, triggering a monster tsunami that struck Africa, a new study suggests.
A network of undersea faults off the coast of Southern California could produce huge quakes that could send tsunami waves crashing into Los Angeles, new research suggests.
A subduction zone is a collision between two of Earth's tectonic plates, where one plate sinks into the mantle underneath the other plate.
Indian Ocean tsunamis destroyed one of the world's most important silk-route ports in the 15th century, new research finds.
Earthquakes occur every day, but most people don't notice the small ones. Here's what causes earthquakes.
The 2011 Japan tsunami released thousands of tons of ozone-destroying chemicals and greenhouse gases into the air.
A new simulation predicts that relatively small asteroids could cause big waves on the U.S. coastline, but not everyone thinks the threat is real.
Ten years ago we witnessed one of the worst natural disasters in history, when a huge earthquake off the coast of Sumatra triggered a devastating tsunami which swept across the Indian Ocean.
As the 10th anniversary of the Indian Ocean tsunami approaches on Dec. 26, greatly expanded networks of seismic monitors and ocean buoys are on alert for the next killer wave.
Small islands boost the power of tsunami waves, rather than absorbing their impact, a new study shows.
Extinct volcanoes on the ocean floor get squashed by tectonic plates and create tsunami earthquakes.
A team of scientists ventured to the depths of the Caribbean Sea on a three-month voyage to study fault zones and strange biological communities.
The Caribbean usually conjures images of white sandy beaches and sparkling turquoise water, but beneath the sea's tranquil surface, powerful forces are at work.