Was Cascadia's 1700 earthquake part of a sequence of earthquakes?

The famous 1700 Cascadia earthquake that altered the coastline of western North America and sent a tsunami across the Pacific Ocean to Japan may have been one of a sequence of earthquakes, according to new research presented ...

Fukushima clean-up reduces radiation levels, but not all

Clean-up efforts at Japan's Fukushima nuclear plant, destroyed by a massive earthquake and tsunami in 2011, have significantly reduced radiation levels but untreated forested areas remain a problem, scientists said Thursday.

Robot lifts bits of melted fuel at Japan's Fukushima plant

A robot arm has successfully picked up pebble-sized pieces of radioactive fuel at Japan's Fukushima nuclear plant in a complex operation seen as key to clean-up efforts after the 2011 meltdown, officials said Thursday.

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