At least four people have been killed and hundreds of houses destroyed in a remote area of northern Papua New Guinea, an official said on Tuesday, a day after a 7.2 magnitude earthquake. Teams from Papua New Guinea’s National Disaster Centre are at the quake’s epicentre near Chambri Lakes, a remote and swampy part of East Sepik province, Felix Taranu, a seismologist with the Port Moresby Geophysical Observatory, told Reuters on Tuesday.