Two major earthquakes struck Central America within just 24 hours, as two more struck across the Pacific in New Guinea.
The Cascadia fault system, which sits about 100 miles off shore, runs from California to Vancouver. The subduction zone is believed to have caused a 9.0 earthquake in 1700, the largest known quake ever to have hit the lower 48 states.
But Tuesday night’s quake, which would have been the 2nd largest ever to hit the lower 48 states if it struck along our coast, was not the big one seismologists are expecting.
A magnitude 8.2 earthquake struck off the coast of Chile on Tuesday, according to the U.S. Geological Survey.
Next week marks 50 years since a magnitude 9.2 earthquake in Alaska triggered a tsunami that killed 12 people in Northern California. Scientists are mapping five vulnerable harbors, including Santa Cruz and Crescent City, so managers can come up with better emergency plans.
Bay Area residents were marking the third anniversary of the Fukushima nuclear accident Tuesday with events including a protest outside the Japanese consulate in San Francisco – one of many planned at consulates across the United States.
A cluster of earthquakes around the world hit just before the third anniversary of the devastating 9.0 Kobe earthquake that set off a tsunami causing widespread destruction and triggering a nuclear meltdown in 2011.
A strong 6.9 magnitude earthquake struck off the Northern California coast Sunday night, with strong shaking felt hundreds of miles away, but no reports of damage, and no risk of a tsunami reported.
The project “Kelp Watch 2014″ hopes to determine the extent of radioactive contamination of the state’s kelp forest from the Fukushima nuclear power plant disaster in 2011.
Repair work has been completed on a series of tsunami warning sirens on the San Mateo County Coast, according to the sheriff’s office.