Preliminary Magnitude 6.4 Earthquake Strikes Japan, Early Warning Issued

IBARAKI, Japan — A preliminary magnitude 6.4 earthquake struck southern Ibaraki Prefecture early Sunday, August 23, prompting the Japan Meteorological Agency to issue an Earthquake Early Warning.

The earthquake was detected at approximately 2:00 a.m. Japan time, according to preliminary JMA information.

Earthquake Early Warning Issued

JMA’s emergency earthquake system issued a warning as the earthquake was detected in southern Ibaraki, northeast of Tokyo.

The initial magnitude of 6.4 remains preliminary and could be revised as additional seismic data are analyzed.

Details on the earthquake’s depth and maximum observed shaking intensity were not immediately available.

Authorities were assessing the earthquake, with information on possible damage or injuries not immediately available.