The ground started shaking near one of America's most secretive military bases on Sunday morning, and social media went crazy. Over 100 earthquakes in a week. All of them within about 50 miles of the Tonopah Test Range in central Nevada. That's the facility sometimes called 'Area 52', the one that sits inside the same vast defence complex as Area 51 and has been testing nuclear weapons components since 1957.
The biggest tremor hit at 8.37am local time on 1 March with a magnitude 4.3, centred 48 miles northeast of Tonopah. People in Las Vegas felt it. So did residents in Carson City, over 180 miles west. Nobody was hurt. Nothing collapsed.
