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Earthquake: 4.5 quake rattles Southern California; no major damage reported

[The Los Angeles Times] A magnitude 4.5 earthquake was reported late Friday night, rattling a wide swath of Southern California. There were no immediate reports of serious damage or injuries, but the 11:38 p.m. quake was felt across the region and as far as San Diego, according to the U.S. Geological Survey, which revised its […]

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Magnitude 4.2 earthquake rattles Southern California – and its rich and famous

[USA TODAY] Every year, there are about 500,000 earthquakes – 100,000 of which can be felt on the Earth’s surface. But how do earthquakes work? We explain. At least two small temblors rocked an area near Los Angeles early Thursday, shaking residents out of their sleep but drawing no initial reports of damage or injury. A preliminary […]

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Scientists detect unexpected widespread structures near Earth’s core

[Phys.org] University of Maryland geophysicists analyzed thousands of recordings of seismic waves, sound waves traveling through the Earth, to identify echoes from the boundary between Earth’s molten core and the solid mantle layer above it. The echoes revealed more widespread, heterogenous structures—areas of unusually dense, hot rock—at the core-mantle boundary than previously known. Scientists are […]

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