Tonga: A magnitude-5.9 offshore earthquake in South Pacific early Dec. 16

A magnitude-5.9 offshore earthquake occurred 154 km (96 miles) west of Neiafu at 04:03 Dec. 16. The tremor occurred at a depth of about 193 km (120 miles), and shaking was probably felt throughout Tonga. There have been no initial reports of damage or casualties as a result of the earthquake; however, significant damage is unlikely. It could take several hours until authorities can conduct comprehensive damage assessments, especially in remote areas. Aftershocks are possible over the coming days. The event has not prompted any tsunami advisories.

Officials may temporarily shut down transportation infrastructure in the tremor zone to check for damage. Minor disruptions could occur during shutdowns, but service will likely resume quickly if no damage is found. Utility outages are possible, particularly near the earthquake's epicenter.