Tag Archives: subduction zone

Seismologists are learning the warning signs of the ‘Big Earthquake.’ When should they announce them to the public?

COPALIS BEACH, WASH. — When Japan first issued a “megaquake” warning last week, Washington state seismologist Harold Tobin was watching the event closely. The advice comes after a magnitude 7.1 earthquake hit the southern island of Kyushu. While the tremor didn’t cause much damage — the largest tsunami wave it produced would have reached up… Read More »

Why Japan issued its first mega-earthquake warning and what it means

Following a 7.1 magnitude earthquake that struck Japan’s southern islands on Thursday, the country’s meteorological agency issued a dire warning: Another larger earthquake is possible and the risk will be even higher next week. In its first ever “megaquake warning”, the agency said the risk of strong shaking and tsunamis was higher than normal in… Read More »

Researchers get clearest picture yet of bug threatening Pacific Northwest

A silent giant lurks on the Pacific coast, threatening hundreds of kilometers of coastline with tsunamis and devastating earthquakes. For decades, scientists have been warning about the potential of the Cascadia Subduction Zone, a megathrust fault that runs along the coast from North Vancouver Island to California’s Cape Mendocino. The next time the fault —… Read More »