What happened
According to the Japan Meteorological Agency, a magnitude 4.8 earthquake occurred off the eastern coast of Chiba Prefecture at approximately 0:17 local time on August 30.
The quake had a focal depth of about 30 kilometers, with the epicenter located in the waters east of Chiba Prefecture.
Tremors from the earthquake were also felt in Ibaraki Prefecture, Tokyo, and other areas in the region.
Why it matters
The event serves as a reminder of the frequent seismic activity in Japan, particularly in the Kanto region surrounding Tokyo.
Even a moderate quake like this can draw attention to preparedness measures, as shaking was felt across multiple prefectures, including the capital.
Key facts
The earthquake had a magnitude of 4.8, as reported by the Japan Meteorological Agency.
The epicenter was located off the eastern coast of Chiba Prefecture, at a focal depth of roughly 30 kilometers.
Shaking was reported in Ibaraki Prefecture, Tokyo, and other nearby areas.
What to watch next
Further updates from the Japan Meteorological Agency may provide additional details on the quake's impact and any aftershock advisories.
Local authorities may issue safety reminders for residents in the affected regions, though no major damage has been reported in the provided information.