★ 6.3 ONA
Japan Sinks: 2020
The premise of the project is the 70% possibility that a magnitude 7.0 earthquake will occur in Tokyo in the next 30 years. The anime depicts what would happen if an 8.0 earthquake took place. The story centers… Read more
Storyline
The premise of the project is the 70% possibility that a magnitude 7.0 earthquake will occur in Tokyo in the next 30 years. The anime depicts what would happen if an 8.0 earthquake took place. The story centers on Mirai, a middle school freshman girl who goes to Tokyo’s artificial Odaiba Island for a robot exhibition with her brother Yuuki at the start of summer vacation. A powerful tremor emanates from an ocean trench, the famed Tokyo Tower and Rainbow Bridge crumble and fall, and the landscape of Tokyo changes in an instant. With the help of a motorcycle delivery woman named Mari who they meet on Odaiba, Mirai and Yuuki strive to head back to their Setagaya home in western Tokyo.
Trailer
Characters & Japanese Voice Cast
Yuuki Onozawa
Main
VA: Yumiko Kobayashi
Mari Kusakabe
Main
VA: Yuuko Kaida
Mirai Onozawa
Main
VA: Satomi Hanamura
Kento Nonomiya
Supporting
VA: Shinya Hamazoe
Itsuki Kawashima
Supporting
VA: Miyuki Sawashiro
Masashi Furuichi
Supporting
VA: Takeshi Aono
Masami Onozawa
Supporting
VA: Kikuko Inoue
Seiji Onozawa
Supporting
VA: Hiroshi Naka
Hina Kusakabe
Supporting
VA: Megumi Yamaguchi
Aya Kawasaki
Supporting
VA: Ai Nonaka
Mayu
Supporting
VA: Eri Kitamura
Misako Furuichi
Supporting
VA: Yuuko MogiSeasons & Related Anime
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Frequently Asked Questions
How many episodes does Tokyo Magnitude 8.0 have?
Tokyo Magnitude 8.0 has 11 episodes.
Which studio made Tokyo Magnitude 8.0?
Tokyo Magnitude 8.0 is produced by bones.
Facts from AniList (also listed on MyAnimeList); streaming availability from JustWatch India. Last updated 16 October 2026, 11:05 PM IST. Episode times are Japan broadcast times shown in IST. Spotted a mistake? Write to [email protected].