How Google Alerted Californians to an Earthquake Before It Hit
Android phones around San Francisco’s Bay Area buzzed with an alert on Tuesday morning: a 4.8 magnitude earthquake was about to hit. “You may have felt…
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earthquakes
An Elusive Gravity Signal Could Mean Faster Earthquake Warnings
Seismic waves from a big quake are easy to see—think of the classic image of a seismograph, pencil scratching out telltale waves on a rotating paper as the…
These Small, Cheap Devices Help Monitor Haiti’s Earthquakes
When a magnitude-7.0 earthquake hit Haiti in 2010 and killed an estimated 200,000 people, there was only one working seismometer in the country. The shaking…
New models assess bridge support repairs after earthquakes
Civil engineers at Rice University and Texas A&M have developed a computational…
The Long-Lost Tale of an 18th-Century Tsunami, as Told by Trees
And trees don’t forget. In the 1990s, researchers identified a “ghost forest” of dead cedars near the Washington coast; tree-ring dating confirmed that…
Earthquakes don’t kill people, buildings do, and those lovely decorative bits are the first to…
A parapet is the decorative extension at the top of a wall, often found on top of…
How do wind turbines respond to winds, ground motion during earthquakes?
Wind turbine response to wind and earthquakes. Credit: Xiluli Du…
Why the Caribbean country of Haiti is prone to devastating earthquakes
The preliminary toll of the 7.2 magnitude quake that struck southwestern Haiti rose Monday to 1,419 dead and more than 6,900…
Scientists Could One Day Float an Aerial Robot Above Venus
Seismology is about waves. The epicenter of an earthquake is like a stone dropped into a pond. The disturbance ripples outward along Earth’s crust. That…
Scientists Just ‘Looked’ Inside Mars. Here’s What They Found
The researchers found the core density to be surprisingly low, at only about 6 grams per cubic centimeter, which is much lower than what they’d expected of…