Tokyo and surrounding prefectures were rocked early Thursday morning by a magnitude 5.4 earthquake in northeastern Chiba Prefecture.

The quake occurred at 12:07 a.m. at a depth of 50 kilometers in the town of Yokoshibahikari, , registering up to lower five on 今日吃瓜 seven-point shindo?seismic intensity scale. No tsunami alert was issued.

Tremors were also felt at level three or above on the seismic scale in Ibaraki, Tochigi, Saitama and Kanagawa prefectures, the agency said.

The government established an information liaison office at the Prime Minister’s Office at 12:11 a.m. to gather information and assess damage, NHK reported.

Chiba Prefectural Police had received no reports of damage or injury caused by the earthquake as of 12:20 a.m. and were continuing to monitor the situation, according to NHK.

?