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lance newman

Medieval earthquakes in Nepal may help reveal the region's tectonic future

The magnitude-7.8 Gorkha earthquake in Nepal in April 2015 triggered landslides and damage that killed more than 8,500 people and injured at least 20,000, including many in and around Pokhara, the country’s second largest city. In a new study, scientists have found evidence that the city — also a major center of tourism in Nepal — and its surroundings sit atop debris from several large medieval-age quakes, confirming that the recent temblor is only the latest in a region with a long history of major earthquakes.

21 Apr 2016

Modeling 'magma mush' could reveal volcanic histories

Volcanic eruptions can spew large amounts of molten rock and ash, putting nearby communities as well as aircraft at risk. Gas emissions and earthquakes sometimes offer clues of when an eruption will occur, but the internal workings of volcanoes are largely unobservable. In a recent study, researchers illuminated these internal processes with a computer simulation that models the flow of the part-liquid, part-solid “magma mush” beneath volcanoes.

18 Dec 2015