2021 Chiba earthquake

2021 earthquake in Japan

You can help expand this article with text translated from the corresponding article in Japanese.  (October 2021) Click [show] for important translation instructions.

* View a machine-translated version of the Japanese article.
* Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia.
* Do not translate text that appears unreliable or low-quality. If possible, verify the text with references provided in the foreign-language article.
* You must provide copyright attribution in the edit summary accompanying your translation by providing an interlanguage link to the source of your translation. A model attribution edit summary is `Content in this edit is translated from the existing Japanese Wikipedia article at [[:ja:千葉県北西部地震 (2021年)]]; see its history for attribution.`
* You may also add the template `{{Translated|ja|千葉県北西部地震 (2021年)}}` to the talk page.
* For more guidance, see Wikipedia:Translation.

|

2021 Chiba earthquake千葉県北西部地震

Show map of Kanto Area

Show map of Japan

UTC time| 2021-10-07 13:41:24
USGS-ANSS| ComCat
Local date| 7 October 2021 (2021-10-07)
Local time| 22:41
Magnitude| 5.9 Mw
Depth| 62.0 km (38.5 mi) (USGS)
75.0 km (46.6 mi) (JMA)
Epicenter| 35°34′37″N 140°04′12″E﻿ / ﻿35.577°N 140.070°E﻿ / 35.577; 140.070
Areas affected| Japan
Total damage| Limited
Max. intensity|

* MMI VI (Strong)
* JMA 5+

Casualties| 51 injured[1]

The 2021 Chiba earthquake (千葉県北西部地震, Chiba-ken Hokuseibu Jishin) was an earthquake that occurred in Japan at 22:41 JST (13:41 UTC) on October 7, 2021.[2] The epicenter was recorded approximately 4 kilometers (2.5 mi) southwest of Chiba in Chiba Prefecture. The earthquake struck a depth of around 62.0 kilometers (38.5 mi) to 75.0 kilometers (46.6 mi) 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.[3][4]

## Earthquake

[edit]

### Intensity

[edit]

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

Intensity | Prefecture  | Location[5]

|
|

5+  | Saitama | Kawaguchi, Miyashiro
Tokyo | Adachi
5−  | Saitama  | Midori, Sōka, Warabi, Yashio, Misato, Satte, Yoshikawa, Kazo, Konosu, Kuki
Chiba | Chūō, Funabashi, Matsudo, Nagareyama
Tokyo  | Ōta, Machida
Kanagawa | Tsurumi, Kanagawa, Naka, Kohoku, Midori, Kawasaki

## Impact

[edit]

### Injuries

[edit]

At least 51 people were injured, four of them seriously.[6][1]

### Damage

[edit]

Minor damage and power outages were reported in the epicentral area.[6]

Due to the earthquake, transportation such as railroads ceased operations temporarily. Additionally, a Nippori-Toneri Liner train derailed in Adachi, Tokyo.[7][8][9]

There were also reported instances of fires; an oil refinery processing unit was suspended after a fire broke out there.[10]

## See also

[edit]

* Japan portal
* Tokyo portal
* Earth sciences portal

* List of earthquakes in 2021
* List of earthquakes in Japan
* 2012 Chiba earthquake

## References

[edit]

1. ^ a b "千葉5.9直下型強震！東京都震度五 311以來最有感地震". tw.news.yahoo.com (in Chinese). 8 October 2021. Retrieved 2022-09-25.
2. ^ "令和3年10月7日22時41分頃の千葉県北西部の地震について" (in Japanese). Japan Meteorological Agency. Retrieved 2021-10-14.
3. ^ 日本放送協会. "地震 東京・埼玉で10年ぶりの"震度5強"「1週間程度 注意を」". NHKニュース. Retrieved 2021-10-14.
4. ^ "令和3年10月8日 千葉県北西部を震源とする地震についての会見 | 令和3年 | 総理の演説・記者会見など | ニュース". 首相官邸ホームページ (in Japanese). Retrieved 2021-10-14.
5. ^ "地震情報". tenki.jp (in Japanese). October 8, 2021. Archived from the original on 2021-10-07. Retrieved January 1, 2022.
6. ^ a b "千葉県北西部を震源とする地震による被害及び消防機関等の対応状況 (第6報)" (PDF) (in Japanese). 総務省消防庁. Archived (PDF) from the original on 2021-10-11. Retrieved 2021-10-14.
7. ^ "震度5強で脱線の日暮里・舎人ライナー 11日始発から運転再開". 毎日新聞 (in Japanese). Retrieved 2021-10-14.
8. ^ "日暮里・舎人ライナー 車両損傷し脱線したまま…復旧のめど立たず 乗客3人負傷". FNNプライムオンライン. Archived from the original on 2021-10-08. Retrieved 2021-10-14.
9. ^ "舎人ライナー全線で運行再開 ７日の地震で脱線「思ったより早く」 – 社会 : 日刊スポーツ". nikkansports.com (in Japanese). Retrieved 2021-10-14.
10. ^ "Tokyo Gets Biggest Jolt Since 2011 With Magnitude 5.9 Quake". Bloomberg News.

* v
* t
* e

← Earthquakes in 2021 →

January|

* Khövsgöl, Mongolia (6.7, Jan 11)
* West Sulawesi, Indonesia (6.2, Jan 14) †

February|

* Mindanao, Philippines (6.0, Feb 7)
* Loyalty Islands, France (7.7, Feb 10)
* Fukushima, Japan (7.1, Feb 13)
* Sisakht, Iran (5.4, Feb 17)

March|

* Larissa, Greece (6.3, Mar 3)
* Kermadec Islands, New Zealand (7.4 & 8.1, Mar 4)
* Miyagi, Japan (7.0, Mar 20)

April|

* East Java, Indonesia (6.0, Apr 10)
* Assam, India (6.0, Apr 28)

May|

* Yunnan, China (6.1, May 21)
* Qinghai, China (7.3, May 21)

June|

* Mala, Peru (5.8, June 23)

July|

* Rasht, Tajikistan (5.7, July 10)
* Chignik, Alaska (8.2, July 29)

August|

* Davao Oriental, Philippines (7.1, Aug 12)
* South Sandwich Islands (7.5 & 8.1, Aug 12)
* Nippes, Haiti (7.2, Aug 14) † ‡

September|

* Guerrero, Mexico (7.0, Sep 7)
* Sichuan, China (5.4, Sep 15)
* Melbourne, Australia (5.9, Sep 21)
* Arkalochori, Greece (6.0, Sep 27)

October|

* Balochistan, Pakistan (5.9, Oct 6)
* Chiba, Japan (5.9, Oct 7)
* Lasithi, Greece (6.4, Oct 12)
* Bali, Indonesia (4.7, Oct 15)

November|

* Hormozgan, Iran (6.0 & 6.3, Nov 6)
* Loreto, Peru (7.5, Nov 28)

December|

* Flores, Indonesia (7.3, Dec 14)

* † indicates earthquake resulting in at least 30 deaths
* ‡ indicates the deadliest earthquake of the year
* Dates for all earthquakes are in UTC

* v
* t
* e

Earthquakes in Japan

Historical|

* 679 Tsukushi
* 684 Hakuho
* 869 Jōgan
* 1293 Kamakura
* 1361 Shōhei
* 1498 Meiō
* 1586 Tenshō
* 1596 Fushimi
* 1605 Keichō
* 1611 Aizu
* 1611 Sanriku
* 1662 Kanbun
* 1662 Hyūga-nada
* 1677 Bōsō
* 1703 Genroku
* 1707 Hōei
* 1741 Kampo
* 1751 Takada
* 1771 Great Yaeyama
* 1792 Unzen
* 1804 Kisakata
* 1828 Sanjō
* 1833 Shōnai
* 1847 Zenkoji
* 1854 Iga–Ueno
* 1854 Nankai
* 1854 Tōkai
* 1855 Edo
* 1858 Hietsu
* 1872 Hamada
* 1889 Kumamoto
* 1891 Mino–Owari
* 1894 Tokyo
* 1894 Shōnai
* 1896 Sanriku
* 1896 Rikuu

20th century|

* 1909 Anegawa
* 1911 Kikai Island
* 1914 Senboku
* 1922 Shimabara
* 1923 Great Kantō
* 1925 North Tajima
* 1927 North Tango
* 1930 North Izu
* 1933 Sanriku
* 1936 Miyagi
* 1939 Oga
* 1940 Shakotan
* 1941 Hyūga-nada
* 1943 Tottori
* 1944 Tōnankai
* 1945 Mikawa
* 1946 Nankai
* 1948 Fukui
* 1952 Tokachi
* 1961 North Mino
* 1963 Kuril Islands
* 1964 Niigata
* 1968 Ebino
* 1968 Hyūga-nada
* 1968 Tokachi
* 1973 Nemuro Peninsula
* 1974 Izu Peninsula
* 1978 Izu Ōshima
* 1978 Miyagi
* 1982 Urakawa
* 1983 Sea of Japan
* 1984 Nagano
* 1993 Kushiro
* 1993 Okushiri
* 1994 offshore Sanriku
* 1995 Hanshin
* 2000 Izu Islands
* 2000 Tottori

21st century|

* 2001 Geiyo
* 2003 Miyagi
* 2003 Tokachi
* 2004 Chūetsu
* 2005 Fukuoka
* 2005 Miyagi
* 2006 Kuril Islands
* 2007 Chūetsu
* 2007 Kuril Islands
* 2007 Noto
* 2008 Iwate–Miyagi
* 2008 Iwate
* 2009 Shizuoka
* 2011 Tōhoku
* 2011 Nagano
* 2011 Shizuoka
* 2011 Miyagi
* 2011 Fukushima
* 2012 Chiba
* 2012 Sanriku
* 2014 Nagano
* 2015 Ogasawara
* 2016 Kumamoto
* 2016 Tottori
* 2016 Fukushima
* 2018 Osaka
* 2018 Hokkaido Eastern Iburi
* 2019 Yamagata
* 2021 Fukushima
* 2021 Miyagi
* 2021 Chiba
* 2022 Fukushima
* 2023 Noto
* 2024 Noto
* 2024 Hyūga-nada

Related articles|

* Nankai megathrust earthquakes
* Tōkai earthquakes
* Tōnankai earthquakes
* Nankai earthquakes
* South Kantō earthquakes
* Matsushiro earthquake swarm

This article about an earthquake in Asia is a stub. You can help Wikipedia by expanding it.

|

* v
* t
* e

*[Max.]: Maximum
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template