Japan: Magnitude-5.9 offshore earthquake occurs off Okinawa Island at around 12:22 May 1

Event

A magnitude-5.9 offshore earthquake occurred in the Philippine Sea off Okinawa Island at around 12:22 May 1. The epicenter was about 93 km (58 miles) east-southeast of Naha. The tremor occurred at a depth of about 11 km (7 miles), and light-to-moderate shaking was probably felt throughout Okinawa Island and parts of Oshima District in southern Kagoshima Prefecture. The event follows an earlier magnitude-5.3 earthquake in the same area at around 11:22. There have been no initial reports of damage or casualties as a result of the earthquake; 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.

Advice

Plan accordingly for aftershocks. Consider vacating multistory buildings if operating in affected areas until authorities confirm their structural integrity. Allow additional time for air and road travel, as aftershocks may prompt brief disruptions. Seek updated information on road conditions before driving in hilly areas in the affected region due to potential landslides.