Nearly half of California's faults, including the San Andreas, have long been known to cause earthquakes.
Planet Earth
Russian scientists have discovered a new island in the Caspian Sea, the world's largest inland body of water.
'River of Fire' Flows from Mount Etna During 'Crazy' Explosive Eruption – Earth from Space
This week's science news: 'City-killing' asteroid swarms and the buried baby 'Ice Prince'
A hidden layer beneath Italy's Campi Flegrei caldera could explain why it's so restless
Lake Natron: Tanzania's caustic blood-red lake that turns animals into 'stone'
Record piles of sargassum seaweed have washed up on Caribbean beaches, and their numbers continue to grow
Nuclear fusion record broken: German scientists take 'significant step forward' towards virtually unlimited clean energy
Earth's energy imbalance is out of control and unless agencies monitor it, the world will become 'blind' to the severity of climate change, scientists say
Etna Eruption in Photos: See the Eruption of Europe's Largest Active Volcano from Different Angles
Mysterious Hill in Sudan That Looks Like 'Land Lips' – Earth from Space
'It's like trying to grow a tree in an oven': Gold mining is drying up the Amazon rainforest
