Japan: A magnitude-5.1 offshore earthquake occurs off the east coast of Honshu, July 28

A magnitude-5.1 offshore earthquake occurred 143 km (89 miles) east of Miyako in the North Pacific Ocean at 19:23 July 28. The tremor occurred at a depth of about 10 km (6 miles), and light shaking was probably felt throughout coastal areas of northeastern and eastern Honshu. 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.