Nepal is in crisis after Saturday's 7.8 earthquake devastated the countryside and its capital of Kathmandu.
The official death toll is more than 4,000, but it's expected to go far higher. There have been around a hundred quakes and aftershocks. The largest hit yesterday and registered 6.7. The quake was felt in India, Tibet, and triggered an avalanche on Mount Everest. The tragic news came a week after seismologists from all the world met at the annual meeting of the 2015 Seismological Society of America in Pasadena, where a couple of big earthquake studies with implications for Southern California were presented.
One of them, led by USC earth science professor James Dolan, looks at how big seismic events could trigger other sizable earthquakes in Southern California. The other study is one released by the U.S. Geological Survey linking gas and oil drilling to increased earthquake activities in a number of states, including Alabama, Arkansas, Colorado, Kansas, New Mexico, Ohio, Oklahoma, and Texas.