By Gerry Shih SAN FRANCISCO (Reuters) - Twitter Inc CEO Dick Costolo will meet Shanghai government officials, academics and students in his first visit to China, signaling Twitter's interest in cracking a lucrative but thorny market with 600 million Internet users. Twitter, which has been blocked by Chinese censors since 2009, described the trip as a personal tour for Costolo, who is due to land at Shanghai's Pudong International Airport on Monday and plans to spend three days in the business capital. Costolo is scheduled to meet Shanghai government officials — including representatives of the Shanghai Pilot Free Trade Zone, established in 2013 to test market liberalization measures, such as looser rules governing currency conversion and foreign direct investment.
A powerful 6.7-magnitude earthquake jolted Chile's northern coast Sunday, US geologists said, generating a small tsunami and prompting authorities to evacuate three cities. The quake struck at 6:16 pm (2116 GMT), according to the US Geological Survey, which had originally put the magnitude at 7.0. Located 60 kilometers (38 miles) west-northwest of the port city of Iquique, the quake was 20 kilometers deep, the USGS said in an update. "It may have been destructive along coasts within 200 km of the earthquake epicenter," the center added.