A 6.1 magnitude earthquake has been registered 96 km (60 mi) southwest of the town of Panguna, Papua New Guinea, according to the US Geological Survey. The quake occurred at 00:15 GMT. The epicenter was located at a depth of 18 kilometers. Currently there is no information on possible casualties or damage. This comes just hours after a 7.5 magnitude earthquake struck off Papua New Guinea's eastern coast, prompting a tsunami warning which was later canceled. Last week, a tsunami warning was issued for Papua New Guinea, the Solomon Islands, and Vanatu, after two earthquakes hit the Solomon Islands within hours.