A strong 7.4-magnitude earthquake struck the southern coast of Papua New Guinea, US Geological Survey reported. A tsunami warning was issued for an area within 300 km of the epicenter, including the Australian coast, before being downplayed.
A large temblor registered 133 kilometers (83 miles) south-west of Kokopo, according to USGS. The revised data showed the epicenter to be 63 kilometers under the coast of New Britain island.
The quake was followed by a 5.9-magnitude aftershock just 10 minutes later. The series of aftershocks continued with 5.6 and 5.2 tremors.
The Pacific Tsunami Warning Center (PTWC) issued a preliminary warning message immediately after the first tremor, saying that “hazardous tsunami waves are possible for coasts located within 300km of the earthquake epicenter.”.. see more