2021 Chiba earthquake

The 2021 Chiba earthquake (千葉県北西部地震) was an earthquake that occurred in Japan at 22:41 JST (13:41 UTC) on October 7, 2021. The epicenter was recorded approximately 4 km southwest of Chiba in Chiba Prefecture. The earthquake struck a depth of around 62.0 km to 75.0 km with a magnitude of 5.9 on the Richter scale. A maximum intensity of Shindo 5+ was recorded, equivalent to VI (Strong) on the Mercalli scale. It was the strongest earthquake to strike the Tokyo area since the 2011 Tohoku earthquake.

Intensity
A maximum intensity of Shindo 5+ was recorded in the prefectures of Tokyo and Saitama.

Injuries
At least 51 people were injured, four of them seriously.

Damage
Minor damage and power outages were reported in the epicentral area.

Due to the earthquake, transportation such as railroads ceased operations temporarily. Additionally, a Nippori-Toneri Liner train derailed in Adachi, Tokyo.

There were also reported instances of fires; an oil refinery processing unit was suspended after a fire broke out there.