18 Sep 2023 | 08:11 PM UTC
Japan: Magnitude-5.5 offshore earthquake occurs in Sea of Japan at around 04:33 Sept. 19
Magnitude-5.5 offshore earthquake occurs east of Japan at around 04:33 Sept. 19. No immediate reports of damage or injuries.
Event
A magnitude-5.5 offshore earthquake occurred east of Japan at around 04:33 Sept. 19. The epicenter was approximately 18 km (11 miles) east-northeast of Onagawa Cho. The tremor occurred at a depth of about 67 km (42 miles), and weak-to-light shaking was probably felt in parts of the Tohoku region. 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 likely 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 where shaking occurred.
Advice
Out of an abundance of caution, consider vacating multistory buildings where shaking occurred until authorities confirm their structural integrity. Monitor and plan for aftershocks.
