Anxiety Over Megaquake in Japan

Authorities in Japan urge people to avoid hoarding as anxiety over a possible megaquake triggers a spike in demand for disaster kits and daily necessities. The advisory concerns the Nankai Trough 'subduction zone' between two tectonic plates in the Pacific Ocean.

Risk of Megaquake in Japan's Nankai Trough

Japan's meteorological agency warns of heightened risk of a larger earthquake following a 7.1-magnitude quake. Understanding the dynamics of subduction zone earthquakes and the potential impacts of a megaquake on the Nankai Trough.

Japan's 'Megaquake' Warning

Japan issues its first-ever 'megaquake' warning, indicating the significance of the event.

Potential Megaquake on US West Coast

A new study suggests that an underwater fault line along the US West Coast, known as the Cascadia Subduction Zone, could trigger a megaquake more devastating than California's 'Big One.' Scientists have mapped the fault line in detail and concluded it has the potential to cause a nine-plus magnitude quake, generating tsunamis and causing widespread destruction.