Two strong earthquakes registering a magnitude of 5.9 struck an area near the Peru-Chile border on Monday, according to the US Geological Survey. It said the first tremor occurred in Peru, south-west of the town of Moquegua. Seconds later, a quake also measuring 5.9 struck over the border in Chile, south-east of the Peruvian town of Tacna, Reuters reports. There were no immediate reports of injuries or damage.