The explosive eruption of the Hunga Tonga–Hunga Haʻapai underwater volcano in January was the largest explosion on record—either man-made or natural, rivaled only by the 1883 eruption of Krakatoa—and the largest volcanic eruption since Mount Pinatubo’s 1991 eruption, making for an event that ejected a massive amount of material high into the atmosphere.
Iceland has experienced over 20,000 moderate earthquakes since the ongoing swarm began on February 24, accompanied by increasing signs of magma movement beneath the surface. Although all but two of the quakes have been below 5.0 on the Richter scale, the nigh-continuous stream of tremors signals the possibility of an imminent eruption from
A series of 70 major earthquakes that have occurred around the Pacific Ocean’s Ring of Fire has prompted fears that California may be hit by the dreaded "Big One", an anticipated earthquake with a magnitude powerful enough to have catastrophic consequences for the state. The sequence of earthquakes struck Indonesia, Bolivia, Japan and Fiji, but so far no major seismic activity has been reported in California. But could this recent rash of earthquakes mean that the "Big One" could be close behind?
Ask anyone what the highest point on the planet is, and they’ll likely respond with the Himalayas’ famous Mount Everest. And indeed, it is: Mount Everest stands 29,029 ft (8,848 meters) above sea level. But this well-known bit of knowledge is based on the old assumption that the Earth is a sphere, when, in fact, it actually isn’t quite that round. When one takes this factor into account, Everest’s reign at the top of the world appears to to come up short.