A 7.1 magnitude earthquake has rattled parts of Southern California, the biggest tremor to strike in 20 years. It struck at the shallow depth of 0.9km (0.6 miles) and its epicentre was near the city of Ridgecrest, about 240km north-east of Los Angeles.
A tsunami warning was lifted hours after a 7.9-magnitude earthquake struck off the coast of Alaska in the US. The quake hit 280km (173 miles) south-east of Kodiak, at a depth of 25km, at 00:31 local time (09:31 GMT), the US Geological Survey said.