Mental first aid during a disaster can ease long-term psychological suffering.
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.
As radiation levels at Japan's Fukushima nuclear power plant spiral out of control, workers put their lives on the line to try to prevent a catastrophic meltdown.
Earthquakes may seem to come in clusters, but that's probably just a statistical quirk, researchers say.
If you live on the coast, you're at some degree of risk of being hit by a tsunami. Some areas are safer than others, though.
An earthquake has struck Japan surprisingly near the date of the March 19 supermoon, but this is just a coincidence.