Confirmed
August 12, 2021 at 20:36:00 JST
Off the southeast Coast of Chiba Prefecture · M4.2 · Shindo 2
千葉県南東沖
Off the southeast Coast of Chiba Prefecture earthquake history →
Maximum Shindo2JMA
MagnitudeM4.2JMA magnitude (Mj)
Depth70 km
Stations127JMA
TsunamiNo tsunami concernCheck JMA source ↗
Places with the strongest observed Shindo
These municipalities had the highest station readings in this report. Open a place to compare this earthquake with its local history.
Prefectures that observed this earthquake
Shindo2
Isumi Cityいすみ市
→Shindo2View local history
Yokosuka City横須賀市
→Shindo2View local history
Yokohama Kanazawa Ward横浜市金沢区
→Shindo2View local history
Yokohama Totsuka Ward横浜市戸塚区
→Shindo2View local history
Kamogawa City鴨川市
→Shindo2View local history
Tateyama City館山市
→Shindo2View local history
Atsugi City厚木市
→Shindo2View local history
Miura City三浦市
→View local history
MAP
View on mapShindo readings and epicentre
Each numbered marker is an actual station reading. The orange M marker shows the epicentre.
OBSERVATIONS
127Observed Shindo by station
These are actual readings reported at JMA and partner stations, not estimates.
Scroll horizontally to see the full table.
| Shindo | Station | Prefecture | Distance from epicentre |
|---|---|---|---|
| 2 | Katsuura City勝浦市墨名 | Chiba | 16.7 km |
| 2 | Katsuura City勝浦市新官 | Chiba | 16.7 km |
| 2 | Kamogawa City鴨川市横渚 | Chiba | 21.6 km |
| 2 | Isumi Cityいすみ市国府台 | Chiba | 31.1 km |
| 2 | Minamiboso City南房総市岩糸 | Chiba | 31.1 km |
| 2 | Otaki Town大多喜町大多喜 | Chiba | 32.5 km |
| 2 | Minamiboso City南房総市白浜町白浜 | Chiba | 37.9 km |
| 2 | Tateyama City館山市北条 | Chiba | 39.3 km |
| 2 | Tateyama City館山市長須賀 | Chiba | 39.7 km |
| 2 | Futtsu City富津市下飯野 | Chiba | 52.1 km |
| 2 | Ichihara City市原市姉崎 | Chiba | 56.9 km |
| 2 | Yokosuka City横須賀市光の丘 | Kanagawa | 63.3 km |
| 2 | Miura City三浦市城山町 | Kanagawa | 63.9 km |
| 2 | Yokohama Kanazawa Ward横浜金沢区白帆 | Kanagawa | 72.7 km |
| 2 | Yokohama Kanazawa Ward横浜金沢区釜利谷南 | Kanagawa | 74.1 km |
| 2 | Yokohama Totsuka Ward横浜戸塚区鳥が丘 | Kanagawa | 84.3 km |
| 2 | Chiyoda City東京千代田区大手町 | Tokyo | 90.9 km |
| 2 | Hiratsuka City平塚市浅間町 | Kanagawa | 94.8 km |
| 2 | Atsugi City厚木市中町 | Kanagawa | 98.5 km |
| 2 | Nakai Town中井町比奈窪 | Kanagawa | 105.0 km |
| 2 | Yugawara Town湯河原町中央 | Kanagawa | 109.9 km |
| 1 | Kamogawa City鴨川市天津 | Chiba | 19.1 km |
| 1 | Kamogawa City鴨川市内浦 | Chiba | 20.0 km |
| 1 | Onjuku Town御宿町須賀 | Chiba | 21.6 km |
| 1 | Kamogawa City鴨川市八色 | Chiba | 22.3 km |
| 1 | Isumi Cityいすみ市大原 | Chiba | 28.9 km |
| 1 | Minamiboso City南房総市千倉町瀬戸 | Chiba | 31.1 km |
| 1 | Isumi Cityいすみ市岬町長者 | Chiba | 34.1 km |
| 1 | Minamiboso City南房総市谷向 | Chiba | 36.7 km |
| 1 | Minamiboso City南房総市上堀 | Chiba | 37.9 km |
| 1 | Kimitsu City君津市久留里市場 | Chiba | 39.3 km |
| 1 | Mutsuzawa Town睦沢町下之郷 | Chiba | 40.0 km |
| 1 | Ichinomiya Town一宮町一宮 | Chiba | 41.7 km |
| 1 | Minamiboso City南房総市富浦町青木 | Chiba | 42.2 km |
| 1 | Chonan Town長南町総合グラウンド | Chiba | 43.1 km |
| 1 | Chonan Town長南町長南 | Chiba | 43.6 km |
| 1 | Kyonan Town鋸南町下佐久間 | Chiba | 43.7 km |
| 1 | Kimitsu City君津市久保 | Chiba | 51.7 km |
| 1 | Kisarazu City木更津市太田 | Chiba | 53.0 km |
| 1 | Kisarazu City木更津市富士見 | Chiba | 54.5 km |
| 1 | Togane City東金市日吉台 | Chiba | 63.3 km |
| 1 | Yokosuka City横須賀市坂本町 | Kanagawa | 65.6 km |
| 1 | Chiba Chuo Ward千葉中央区中央港 | Chiba | 69.2 km |
| 1 | Chiba Wakaba Ward千葉若葉区小倉台 | Chiba | 70.9 km |
| 1 | Yokohama Kanazawa Ward横浜金沢区寺前 | Kanagawa | 71.8 km |
| 1 | Chiba Mihama Ward千葉美浜区稲毛海岸 | Chiba | 72.7 km |
| 1 | Zushi City逗子市桜山 | Kanagawa | 72.8 km |
| 1 | Chiba Inage Ward千葉稲毛区園生町 | Chiba | 73.8 km |
| 1 | Chiba Mihama Ward千葉美浜区ひび野 | Chiba | 75.2 km |
| 1 | Yokohama Isogo Ward横浜磯子区洋光台 | Kanagawa | 75.8 km |
| 1 | Yokohama Isogo Ward横浜磯子区磯子 | Kanagawa | 76.2 km |
| 1 | Yokohama Naka Ward横浜中区山手町 | Kanagawa | 76.5 km |
| 1 | Kamakura City鎌倉市御成町 | Kanagawa | 77.0 km |
| 1 | Chiba Hanamigawa Ward千葉花見川区花島町 | Chiba | 77.6 km |
| 1 | Yokohama Tsurumi Ward横浜鶴見区末広町 | Kanagawa | 77.7 km |
| 1 | Yokohama Naka Ward横浜中区日本大通 | Kanagawa | 78.1 km |
| 1 | Yokohama Naka Ward横浜中区山吹町 | Kanagawa | 78.1 km |
| 1 | Yokohama Tsurumi Ward横浜鶴見区鶴見 | Kanagawa | 79.3 km |
| 1 | Yokohama Konan Ward横浜港南区野庭町 | Kanagawa | 79.3 km |
| 1 | Kawasaki Kawasaki-ku Miyamae-cho川崎川崎区宮前町 | Kanagawa | 79.6 km |
| 1 | Yokohama Minami Ward横浜南区六ツ川 | Kanagawa | 79.7 km |
| 1 | Yokohama Sakae Ward横浜栄区小菅ケ谷 | Kanagawa | 79.7 km |
| 1 | Ota City東京大田区本羽田 | Tokyo | 80.1 km |
| 1 | Yokohama Hodogaya Ward横浜保土ケ谷区神戸町 | Kanagawa | 81.0 km |
| 1 | Yokohama Kanagawa Ward横浜神奈川区広台太田町 | Kanagawa | 81.0 km |
| 1 | Funabashi City船橋市湊町 | Chiba | 81.9 km |
| 1 | Ota City東京大田区多摩川 | Tokyo | 82.7 km |
| 1 | Fujisawa City藤沢市朝日町 | Kanagawa | 82.9 km |
| 1 | Yokohama Kanagawa Ward横浜神奈川区神大寺 | Kanagawa | 83.1 km |
| 1 | Edogawa City東京江戸川区船堀 | Tokyo | 85.0 km |
| 1 | Yokohama Asahi Ward横浜旭区大池町 | Kanagawa | 85.3 km |
| 1 | Yokohama Hodogaya Ward横浜保土ケ谷区上菅田町 | Kanagawa | 85.8 km |
| 1 | Yokohama Kohoku Ward横浜港北区日吉本町 | Kanagawa | 86.3 km |
| 1 | Kawasaki Nakahara-ku Kosugimachi川崎中原区小杉町 | Kanagawa | 86.8 km |
| 1 | Edogawa City東京江戸川区鹿骨 | Tokyo | 87.1 km |
| 1 | Kawasaki Nakahara Ward川崎中原区小杉陣屋町 | Kanagawa | 87.6 km |
| 1 | Fujisawa City藤沢市大庭 | Kanagawa | 87.6 km |
| 1 | Yokohama Asahi Ward横浜旭区今宿東町 | Kanagawa | 88.0 km |
| 1 | Fujisawa City藤沢市長後 | Kanagawa | 89.0 km |
| 1 | Yokohama Asahi Ward横浜旭区川井宿町 | Kanagawa | 89.4 km |
| 1 | Chigasaki City茅ヶ崎市茅ヶ崎 | Kanagawa | 89.7 km |
| 1 | Setagaya City東京世田谷区中町 | Tokyo | 89.9 km |
| 1 | Setagaya City東京世田谷区三軒茶屋 | Tokyo | 91.2 km |
| 1 | Kawasaki Miyamae Ward川崎宮前区宮前平 | Kanagawa | 92.0 km |
| 1 | Ayase City綾瀬市深谷中 | Kanagawa | 92.5 km |
| 1 | Yokohama Midori Ward横浜緑区十日市場町 | Kanagawa | 92.9 km |
| 1 | Setagaya City東京世田谷区世田谷 | Tokyo | 93.2 km |
| 1 | Yamato City大和市下鶴間 | Kanagawa | 93.8 km |
| 1 | Setagaya City東京世田谷区成城 | Tokyo | 95.4 km |
| 1 | Arakawa City東京荒川区東尾久 | Tokyo | 96.1 km |
| 1 | Ebina City海老名市大谷 | Kanagawa | 96.2 km |
| 1 | Kita City東京北区西ヶ原 | Tokyo | 97.5 km |
| 1 | Suginami City東京杉並区高井戸 | Tokyo | 98.4 km |
| 1 | Chofu City調布市西つつじヶ丘 | Tokyo | 98.8 km |
| 1 | Oiso Town大磯町月京 | Kanagawa | 99.1 km |
| 1 | Sagamihara Minami Ward相模原南区磯部 | Kanagawa | 100.4 km |
| 1 | Machida City町田市忠生 | Tokyo | 103.4 km |
| 1 | Nerima City東京練馬区東大泉 | Tokyo | 105.3 km |
| 1 | Nishitokyo City西東京市中町 | Tokyo | 106.1 km |
| 1 | Kawaguchi City川口市安行領家 | Saitama | 106.3 km |
| 1 | Koganei City小金井市本町 | Tokyo | 106.4 km |
| 1 | Kiyokawa Village清川村煤ヶ谷 | Kanagawa | 107.0 km |
| 1 | Manazuru Town真鶴町岩 | Kanagawa | 107.3 km |
| 1 | Hachioji City八王子市堀之内 | Tokyo | 107.6 km |
| 1 | Hadano City秦野市曽屋 | Kanagawa | 107.7 km |
| 1 | Hadano City秦野市平沢 | Kanagawa | 108.7 km |
| 1 | Odawara City小田原市荻窪 | Kanagawa | 108.7 km |
| 1 | Kokubunji City国分寺市戸倉 | Tokyo | 109.7 km |
| 1 | Kodaira City小平市小川町 | Tokyo | 110.1 km |
| 1 | Atami City熱海市網代 | Shizuoka | 110.3 km |
| 1 | Hino City日野市神明 | Tokyo | 110.5 km |
| 1 | Saitama Minami Wardさいたま南区別所 | Saitama | 110.8 km |
| 1 | Saitama Midori Wardさいたま緑区中尾 | Saitama | 111.7 km |
| 1 | Saitama Urawa Wardさいたま浦和区高砂 | Saitama | 112.1 km |
| 1 | Matsuda Town松田町松田惣領 | Kanagawa | 112.6 km |
| 1 | Minamiashigara City南足柄市関本 | Kanagawa | 115.0 km |
| 1 | Higashiizu Town東伊豆町奈良本 | Shizuoka | 116.0 km |
| 1 | Saitama Omiya Wardさいたま大宮区大門 | Saitama | 117.9 km |
| 1 | Yamakita Town山北町山北 | Kanagawa | 118.1 km |
| 1 | Saitama Kita Wardさいたま北区宮原 | Saitama | 120.2 km |
| 1 | Bando City坂東市岩井 | Ibaraki | 121.4 km |
| 1 | Kawagoe City川越市旭町 | Saitama | 124.9 km |
| 1 | Fujinomiya City富士宮市野中 | Shizuoka | 156.7 km |
| 1 | Fujikawa Town富士川町鰍沢 | Yamanashi | 177.8 km |
| 1 | 国分寺市本多 | Tokyo | — |
| 1 | 横浜泉区和泉町 | Kanagawa | — |
| 1 | 相模原中央区上溝 | Kanagawa | — |
UPDATES
1Report updates
Status, time and revision available in the stored report. Field-by-field differences may not be retained.
- Confirmed
Revision 1 · p2pquake
SOURCES
1Sources and bulletins
Multiple source bulletins do not necessarily represent multiple corrections.
- P2PQUAKEIssued: August 12, 2021 at 20:39:41Received: July 31, 2026 at 00:28:36
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Read guide →5 min readMagnitude vs Shindo: what is the difference?Magnitude describes the size of an earthquake at its source; Shindo describes shaking at a place. Learn why they are not interchangeable.
Read guide →6 min readCan every earthquake cause a tsunami?What creates a tsunami, why magnitude alone is not enough and when to leave the coast immediately.
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