A 6.3-magnitude earthquake struck Tuesday in the Bismarck Sea about 200 kilometres (120 miles) off Papua New Guinea’s coast, the US Geological Survey said. A preliminary USGS assessment said there was a “low likelihood of casualties and damage from the quake”, which had an estimated depth of 10 kilometres. There were no tsunami warnings. Papua New Guinea sits on the so-called Pacific Ring of Fire, which is a hotspot for seismic activity due to […]