April 21, 2016 at 23:20:00 JST
Off the Coast of Shikoku · M4.3 · Shindo 3
四国沖
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.
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Shindo readings and epicentre
Each numbered marker is an actual station reading. The orange M marker shows the epicentre.
Observed 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 |
|---|---|---|---|
| 3 | Muroto City室戸市浮津 | Kochi | 27.2 km |
| 2 | Toyo Town東洋町生見 | Kochi | 3.8 km |
| 2 | Kaiyo Town海陽町大里 | Tokushima | 12.0 km |
| 2 | Muroto City室戸市吉良川町 | Kochi | 19.2 km |
| 2 | Mugi Town牟岐町中村 | Tokushima | 21.9 km |
| 2 | Umaji Village馬路村馬路 | Kochi | 24.2 km |
| 2 | Tano Town田野町役場 | Kochi | 28.1 km |
| 2 | Muroto City室戸市室戸岬町 | Kochi | 29.8 km |
| 2 | Yasuda Town安田町安田 | Kochi | 30.5 km |
| 2 | Naka Town那賀町木頭和無田 | Tokushima | 31.4 km |
| 2 | Minami Town美波町奥河内 | Tokushima | 33.9 km |
| 2 | Naka Town那賀町横石 | Tokushima | 35.5 km |
| 2 | Naka Town那賀町延野 | Tokushima | 39.2 km |
| 2 | Minami Town美波町西の地 | Tokushima | 40.3 km |
| 2 | Naka Town那賀町和食 | Tokushima | 44.0 km |
| 2 | Kami City香美市物部町大栃 | Kochi | 44.9 km |
| 2 | Kami City香美市物部町神池 | Kochi | 46.9 km |
| 2 | Koyadaira, Mima City美馬市木屋平 | Tokushima | 48.4 km |
| 2 | Anan City阿南市山口町 | Tokushima | 49.6 km |
| 2 | Anan City阿南市富岡町 | Tokushima | 56.8 km |
| 2 | Anan City阿南市那賀川町 | Tokushima | 60.0 km |
| 2 | 徳島三好市西祖谷山村 | Tokushima | 62.1 km |
| 2 | Komatsushima City小松島市横須町 | Tokushima | 62.6 km |
| 2 | Ishii Town石井町高川原 | Tokushima | 64.5 km |
| 2 | Tokushima City徳島市津田町 | Tokushima | 65.3 km |
| 2 | 徳島三好市三野町 | Tokushima | 67.2 km |
| 2 | Tokushima City徳島市大和町 | Tokushima | 67.9 km |
| 2 | Higashimiyoshi Town東みよし町加茂 | Tokushima | 68.6 km |
| 2 | 徳島三好市池田総合体育館 | Tokushima | 74.6 km |
| 1 | Kaiyo Town海陽町宍喰浦 | Tokushima | 7.8 km |
| 1 | Kaiyo Town海陽町奥浦 | Tokushima | 12.2 km |
| 1 | Kitagawa Village北川村野友 | Kochi | 24.8 km |
| 1 | Nahari Town奈半利町役場 | Kochi | 27.5 km |
| 1 | Naka Town那賀町上那賀 | Tokushima | 35.0 km |
| 1 | Aki City安芸市矢ノ丸 | Kochi | 36.2 km |
| 1 | Aki City安芸市西浜 | Kochi | 36.9 km |
| 1 | Kamikatsu Town上勝町旭 | Tokushima | 43.0 km |
| 1 | Geisei Village芸西村和食 | Kochi | 45.6 km |
| 1 | 高知香南市夜須町坪井 | Kochi | 50.4 km |
| 1 | Kami City香美市香北町美良布 | Kochi | 51.1 km |
| 1 | Katsuura Town勝浦町久国 | Tokushima | 51.5 km |
| 1 | Kamiyama Town神山町神領 | Tokushima | 52.3 km |
| 1 | 高知香南市赤岡支所 | Kochi | 54.1 km |
| 1 | 徳島三好市東祖谷 | Tokushima | 54.1 km |
| 1 | 高知香南市吉川町吉原 | Kochi | 55.9 km |
| 1 | Sanagochi Village佐那河内村下 | Tokushima | 56.1 km |
| 1 | 高知香南市野市町西野 | Kochi | 56.1 km |
| 1 | Anan City阿南市羽ノ浦町 | Tokushima | 58.1 km |
| 1 | Yoshinogawa City吉野川市山川町 | Tokushima | 61.3 km |
| 1 | Yoshinogawa City吉野川市川島町 | Tokushima | 62.1 km |
| 1 | Yoshinogawa City吉野川市鴨島町 | Tokushima | 63.1 km |
| 1 | つるぎ町半田 | Tokushima | 63.9 km |
| 1 | つるぎ町貞光 | Tokushima | 63.9 km |
| 1 | 美馬市美馬町 | Tokushima | 65.3 km |
| 1 | Tokushima City徳島市新蔵町 | Tokushima | 67.7 km |
| 1 | 徳島三好市井川町 | Tokushima | 70.5 km |
| 1 | Higashimiyoshi Town東みよし町昼間 | Tokushima | 71.9 km |
| 1 | Motoyama Town本山町本山 | Kochi | 72.3 km |
| 1 | 徳島三好市池田中学校 | Tokushima | 74.0 km |
| 1 | Kochi City高知市春野町芳原 | Kochi | 74.5 km |
| 1 | Tosa Town土佐町土居 | Kochi | 76.2 km |
| 1 | Naruto City鳴門市鳴門町 | Tokushima | 82.8 km |
| 1 | Okawa Village大川村小松 | Kochi | 83.0 km |
| 1 | Mitoyo City三豊市山本町 | 香川県 | 86.7 km |
| 1 | Ayagawa Town綾川町山田下 | 香川県 | 87.2 km |
| 1 | Kanonji City観音寺市豊浜町 | 香川県 | 87.9 km |
| 1 | Gobo City御坊市薗 | Wakayama | 90.5 km |
| 1 | Kanonji City観音寺市瀬戸町 | 香川県 | 91.2 km |
| 1 | Kanonji City観音寺市坂本町 | 香川県 | 91.5 km |
| 1 | Yura Town由良町里 | Wakayama | 91.5 km |
| 1 | Mitoyo City三豊市豊中町 | 香川県 | 91.6 km |
| 1 | Mitoyo City三豊市高瀬町 | 香川県 | 92.6 km |
| 1 | 日高川町土生 | Wakayama | 94.2 km |
| 1 | Mitoyo City三豊市三野町 | 香川県 | 95.8 km |
| 1 | Mitoyo City三豊市詫間町 | 香川県 | 98.9 km |
| 1 | Tadotsu Town多度津町家中 | 香川県 | 99.9 km |
| 1 | Arida City有田市箕島 | Wakayama | 100.4 km |
| 1 | Saijo City西条市丹原町鞍瀬 | Ehime | 120.4 km |
| 1 | Satosho Town里庄町里見 | Okayama | 131.2 km |
| 1 | Fukuyama City福山市松永町 | Hiroshima | 143.1 km |
| 1 | 広島三次市吉舎町 | Hiroshima | 181.4 km |
| 1 | 高知市池 | Kochi | — |
| 1 | 高知市高須東町 | Kochi | — |
| 1 | 海南市日方 | Wakayama | — |
| 1 | 玉野市宇野 | Okayama | — |
Report updates
Status, time and revision available in the stored report. Field-by-field differences may not be retained.
- Confirmed
Revision 1 · p2pquake
Sources and bulletins
Multiple source bulletins do not necessarily represent multiple corrections.
- P2PQUAKEIssued: April 21, 2016 at 23:24:00Received: July 31, 2026 at 00:41:47
- P2PQUAKEIssued: April 21, 2016 at 23:24:00Received: July 31, 2026 at 00:41:47
- P2PQUAKEIssued: April 21, 2016 at 23:23:00Received: July 31, 2026 at 00:41:47
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Understand this earthquake report
Read Shindo, magnitude and JMA information in the right context.
A guide to event and issue times, hypocentre, depth, Shindo, tsunami information, preliminary reports and corrections.
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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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