HAVANA, Cuba (AFP)—A strong earthquake struck off the coast of western Cuba on Monday, with AFP journalists in Havana reporting 20 seconds of shaking that forced Cubans out of buildings and into the streets. The US Geological Survey said that the quake was 6.1 magnitude and struck about 62 miles (100 kilometres) off the island's western tip. No injuries or significant damage were recorded. People milled around Havana's city centre,...