LOCAL EARTHQUAKE HISTORY

Kochi earthquake and Shindo history in 2021

Name: Kochi earthquake and observed Shindo history in 2021
Creator: JISHINDESU
License: https://jishindesu.jp/en/terms

高知県

This annual view includes only earthquakes from 2021 for which stations associated with Kochi recorded Shindo.

Data period: 1 January–31 December 2021

History

Data period: 1 January–31 December 2021

In 2021, stations associated with Kochi reported local Shindo for 4 earthquakes. The highest local level recorded that year was Shindo 3.

Observed events42021

Highest local Shindo32021

Data period: 1 January–31 December 2021 · 4 observed earthquakes

Observation history · 2021

This history counts earthquakes observed at stations in the place, not earthquakes whose epicentre lies inside its boundary. Counts can change as stations are updated and older or corrected observations are added.

2021 · Shindo 3+ · Clear filters

First observation: Feb 3, 2015

Observed events by year

Choose a year to update the event history and local Shindo distribution.

All years

202628 202527 2024103 202328 202236 202124 202013 201935 201824 201727 201663 201529

2021

Shindo observed in this place

The highest reading from stations in this place, not the maximum Shindo of the whole event.

All Shindo

110 210 34405−05+06−06+070

Data period: 1 January–31 December 2021

Observation history · 2021

4 observed earthquakes

Reference model · not a forecast

Regional context

The context below uses the place's full available history and reference models; it is not part of the 2021 statistics.

Local seismic profile

Where the shaking usually comes from

Source regions of earthquakes observed here, ordered by the number of reports.

6−

Bungosuido Strait豊後水道

116

5−

Hyuganada Sea日向灘

Kumamoto Region, Kumamoto Prefecture熊本県熊本地方

Nanyo, Ehime Prefecture愛媛県南予

Central Kochi Prefecture高知県中部

Kiisuido Strait紀伊水道

Reference model · not a forecast J-SHIS (NIED) · A39000

Earthquake scenarios affecting this place

Official J-SHIS models ranked for their potential impact on this prefecture.

J-SHIS / NIED

#1 means the model ranks highest in the J-SHIS result for this place under the same settings. It is not a ranking of which earthquake will happen next.

Magnitude on a card describes the size of the whole earthquake model, not the Shindo expected here. Local shaking also depends on distance, depth and ground conditions.

#1Subduction-zone earthquakeLarge Earthquakes along the Nankai Trough南海トラフ沿いで発生する大地震

Modelled magnitude: M8.2–9.1

Read about this model #2Major active faultMedian Tectonic Line (MTL) fault zone (FROM Kitan-kaikyo - Naruto-Kaikyo segment TO Ishizuchi-sanmyaku-hokuen western segment)中央構造線断層帯（紀淡海峡－鳴門海峡区間～石鎚山脈北縁西部区間が同時に活動）

Modelled magnitude: M7.7

Read about this model #3Major active faultMedian Tectonic Line (MTL) fault zone (FROM Gojoya segment TO Ishizuchi-sanmyaku-hokuen western segment)中央構造線断層帯（五条谷区間～石鎚山脈北縁西部区間が同時に活動）

Modelled magnitude: M7.7

Read about this model #4Major active faultMedian Tectonic Line (MTL) fault zone (FROM Gojoya segment TO Sanuki-sanmyaku-nanen western segment)中央構造線断層帯（五条谷区間～讃岐山脈南縁西部区間が同時に活動）

Modelled magnitude: M7.7

Read about this model #5Major active faultMedian Tectonic Line (MTL) fault zone (FROM Negoro segment TO Sanuki-sanmyaku-nanen western segment)中央構造線断層帯（根来区間～讃岐山脈南縁西部区間が同時に活動）

Modelled magnitude: M7.7

Read about this model #6Other active faultKochi-Agawa高知吾川

Modelled magnitude: M7.1

Read about this model #7Major active faultMedian Tectonic Line (MTL) fault zone (FROM Sanuki-sanmyaku-nanen eastern segment TO Ishizuchi-sanmyaku-hokuen western segment)中央構造線断層帯（讃岐山脈南縁東部区間～石鎚山脈北縁西部区間が同時に活動）

Modelled magnitude: M7.6

Read about this model #8Major active faultMedian Tectonic Line (MTL) fault zone (FROM Kitan-kaikyo - Naruto-Kaikyo segment TO Sanuki-sanmyaku-nanen western segment)中央構造線断層帯（紀淡海峡－鳴門海峡区間～讃岐山脈南縁西部区間が同時に活動）

Modelled magnitude: M7.6

Read about this model #9Major active faultMedian Tectonic Line (MTL) fault zone (FROM Negoro segment TO Ishizuchi-sanmyaku-hokuen western segment)中央構造線断層帯（根来区間～石鎚山脈北縁西部区間が同時に活動）

Modelled magnitude: M7.6

Read about this model #10Major active faultMedian Tectonic Line (MTL) fault zone (FROM Sanuki-sanmyaku-nanen eastern segment TO Sanuki-sanmyaku-nanen western segment)中央構造線断層帯（讃岐山脈南縁東部区間～讃岐山脈南縁西部区間が同時に活動）

Modelled magnitude: M7.5

Read about this model #11Major active faultMedian Tectonic Line (MTL) fault zone (FROM Sanuki-sanmyaku-nanen western segment TO Ishizuchi-sanmyaku-hokuen western segment)中央構造線断層帯（讃岐山脈南縁西部区間～石鎚山脈北縁西部区間が同時に活動）

Modelled magnitude: M7.5

Read about this model #12Major active faultMedian Tectonic Line (MTL) fault zone (Sanuki-sanmyaku-nanen western segment)中央構造線断層帯（讃岐山脈南縁西部区間）

Modelled magnitude: M7.3

Read about this model #13Other active faultSukumo-Nakamura fault zone宿毛－中村断層帯

Modelled magnitude: M7.2

Read about this model #14Other active faultGyodo-zaki fault行当岬断層

Modelled magnitude: M6.9

Read about this model #15Other active faultTosashimizu-kita fault zone土佐清水北断層帯

Modelled magnitude: M6.5

Read about this model #16Major active faultMedian Tectonic Line (MTL) fault zone (FROM Gojoya segment TO Sanuki-sanmyaku-nanen eastern segment)中央構造線断層帯（五条谷区間～讃岐山脈南縁東部区間が同時に活動）

Modelled magnitude: M7.6

Read about this model #17Major active faultTsunatsukemori fault綱附森断層

Modelled magnitude: M6.4

Read about this model #18Major active faultMedian Tectonic Line (MTL) fault zone (FROM Negoro segment TO Sanuki-sanmyaku-nanen eastern segment)中央構造線断層帯（根来区間～讃岐山脈南縁東部区間が同時に活動）

Modelled magnitude: M7.5

Read about this model #19Major active faultMedian Tectonic Line (MTL) fault zone (Ishizuchi-sanmyaku-hokuen western segment)中央構造線断層帯（石鎚山脈北縁西部区間）

Modelled magnitude: M6.9

Read about this model #20Major active faultMedian Tectonic Line (MTL) fault zone (All segment)中央構造線断層帯（全体が同時に活動）

Modelled magnitude: M7.9

Read about this model #21Major active faultMedian Tectonic Line (MTL) fault zone (FROM Gojoya segment TO Houyo-kaikyo - Yufuin segment)中央構造線断層帯（五条谷区間～豊予海峡－由布院区間が同時に活動）

Modelled magnitude: M7.9

Read about this model #22Major active faultMedian Tectonic Line (MTL) fault zone (FROM Kongo-sanchi-toen segment TO Iyonada segment)中央構造線断層帯（金剛山地東縁区間～伊予灘区間が同時に活動）

Modelled magnitude: M7.8

Read about this model #23Major active faultMedian Tectonic Line (MTL) fault zone (FROM Gojoya segment TO Iyonada segment)中央構造線断層帯（五条谷区間～伊予灘区間が同時に活動）

Modelled magnitude: M7.8

Read about this model #24Major active faultMedian Tectonic Line (MTL) fault zone (FROM Negoro segment TO Iyonada segment)中央構造線断層帯（根来区間～伊予灘区間が同時に活動）

Modelled magnitude: M7.8

Read about this model #25Major active faultMedian Tectonic Line (MTL) fault zone (FROM Kitan-kaikyo - Naruto-Kaikyo segment TO Houyo-kaikyo - Yufuin segment)中央構造線断層帯（紀淡海峡－鳴門海峡区間～豊予海峡－由布院区間が同時に活動）

Modelled magnitude: M7.8

Read about this model #26Major active faultMedian Tectonic Line (MTL) fault zone (FROM Kongo-sanchi-toen segment TO Ishizuchi-sanmyaku-hokuen western segment)中央構造線断層帯（金剛山地東縁区間～石鎚山脈北縁西部区間が同時に活動）

Modelled magnitude: M7.8

Read about this model #27Major active faultMedian Tectonic Line (MTL) fault zone (FROM Kitan-kaikyo - Naruto-Kaikyo segment TO Iyonada segment)中央構造線断層帯（紀淡海峡－鳴門海峡区間～伊予灘区間が同時に活動）

Modelled magnitude: M7.7

Read about this model #28Major active faultMedian Tectonic Line (MTL) fault zone (FROM Sanuki-sanmyaku-nanen eastern segment TO Iyonada segment)中央構造線断層帯（讃岐山脈南縁東部区間～伊予灘区間が同時に活動）

Modelled magnitude: M7.7

Read about this model #29Major active faultMedian Tectonic Line (MTL) fault zone (FROM Sanuki-sanmyaku-nanen eastern segment TO Houyo-kaikyo - Yufuin segment)中央構造線断層帯（讃岐山脈南縁東部区間～豊予海峡－由布院区間が同時に活動）

Modelled magnitude: M7.7

Read about this model #30Major active faultMedian Tectonic Line (MTL) fault zone (FROM Sanuki-sanmyaku-nanen western segment TO Iyonada segment)中央構造線断層帯（讃岐山脈南縁西部区間～伊予灘区間が同時に活動）

Modelled magnitude: M7.7

Read about this model #31Major active faultMedian Tectonic Line (MTL) fault zone (FROM Sanuki-sanmyaku-nanen western segment TO Houyo-kaikyo - Yufuin segment)中央構造線断層帯（讃岐山脈南縁西部区間～豊予海峡－由布院区間が同時に活動）

Modelled magnitude: M7.7

Read about this model #32Major active faultMedian Tectonic Line (MTL) fault zone (FROM Kongo-sanchi-toen segment TO Sanuki-sanmyaku-nanen western segment)中央構造線断層帯（金剛山地東縁区間～讃岐山脈南縁西部区間が同時に活動）

Modelled magnitude: M7.7

Read about this model #33Major active faultMedian Tectonic Line (MTL) fault zone (FROM Kongo-sanchi-toen segment TO Ishizuchi-sanmyaku-hokuen segment)中央構造線断層帯（金剛山地東縁区間～石鎚山脈北縁区間が同時に活動）

Modelled magnitude: M7.7

Read about this model #34Major active faultMedian Tectonic Line (MTL) fault zone (FROM Gojoya segment TO Ishizuchi-sanmyaku-hokuen segment)中央構造線断層帯（五条谷区間～石鎚山脈北縁区間が同時に活動）

Modelled magnitude: M7.7

Read about this model #35Major active faultMedian Tectonic Line (MTL) fault zone (FROM Negoro segment TO Ishizuchi-sanmyaku-hokuen segment)中央構造線断層帯（根来区間～石鎚山脈北縁区間が同時に活動）

Modelled magnitude: M7.7

Read about this model #36Major active faultMedian Tectonic Line (MTL) fault zone (FROM Kitan-kaikyo - Naruto-Kaikyo segment TO Ishizuchi-sanmyaku-hokuen segment)中央構造線断層帯（紀淡海峡－鳴門海峡区間～石鎚山脈北縁区間が同時に活動）

Modelled magnitude: M7.7

Read about this model #37Major active faultMedian Tectonic Line (MTL) fault zone (FROM Ishizuchi-sanmyaku-hokuen segment TO Houyo-kaikyo - Yufuin segment)中央構造線断層帯（石鎚山脈北縁区間～豊予海峡－由布院区間が同時に活動）

Modelled magnitude: M7.7

Read about this model #38Major active faultMedian Tectonic Line (MTL) fault zone (FROM Sanuki-sanmyaku-nanen eastern segment TO Ishizuchi-sanmyaku-hokuen segment)中央構造線断層帯（讃岐山脈南縁東部区間～石鎚山脈北縁区間が同時に活動）

Modelled magnitude: M7.6

Read about this model #39Major active faultMedian Tectonic Line (MTL) fault zone (FROM Ishizuchi-sanmyaku-hokuen segment TO Iyonada segment)中央構造線断層帯（石鎚山脈北縁区間～伊予灘区間が同時に活動）

Modelled magnitude: M7.6

Read about this model #40Major active faultMedian Tectonic Line (MTL) fault zone (FROM Ishizuchi-sanmyaku-hokuen western segment TO Houyo-kaikyo - Yufuin segment)中央構造線断層帯（石鎚山脈北縁西部区間～豊予海峡－由布院区間が同時に活動）

Modelled magnitude: M7.6

Read about this model #41Major active faultMedian Tectonic Line (MTL) fault zone (FROM Sanuki-sanmyaku-nanen western segment TO Ishizuchi-sanmyaku-hokuen segment)中央構造線断層帯（讃岐山脈南縁西部区間～石鎚山脈北縁区間が同時に活動）

Modelled magnitude: M7.5

Read about this model #42Major active faultMedian Tectonic Line (MTL) fault zone (FROM Ishizuchi-sanmyaku-hokuen western segment TO Iyonada segment)中央構造線断層帯（石鎚山脈北縁西部区間～伊予灘区間が同時に活動）

Modelled magnitude: M7.5

Read about this model #43Major active faultMedian Tectonic Line (MTL) fault zone (FROM Negoro segment TO Houyo-kaikyo - Yufuin segment)中央構造線断層帯（根来区間～豊予海峡－由布院区間が同時に活動）

Modelled magnitude: M7.8

Read about this model #44Major active faultMedian Tectonic Line (MTL) fault zone (FROM Iyonada segment TO Houyo-kaikyo - Yufuin segment)中央構造線断層帯（伊予灘区間～豊予海峡－由布院区間が同時に活動）

Modelled magnitude: M7.6

Read about this model #45Major active faultMedian Tectonic Line (MTL) fault zone (FROM Ishizuchi-sanmyaku-hokuen segment TO Ishizuchi-sanmyaku-hokuen western segment)中央構造線断層帯（石鎚山脈北縁区間～石鎚山脈北縁西部区間が同時に活動）

Modelled magnitude: M7.2

Read about this model #46Major active faultMedian Tectonic Line (MTL) fault zone (FROM Kongo-sanchi-toen segment TO Sanuki-sanmyaku-nanen eastern segment)中央構造線断層帯（金剛山地東縁区間～讃岐山脈南縁東部区間が同時に活動）

Modelled magnitude: M7.6

Read about this model

J-SHIS 2020 model, 30-year period and Shindo 6-lower threshold. This is not a prediction of a particular earthquake. Source: J-SHIS (NIED); processed for presentation by JISHINDESU.

Local seismic profile

Municipalities in this prefecture

Municipalities with an observation history, ordered alphabetically. Counts depend on station coverage and the available data period; they are not a risk ranking.

Aki City安芸市

79 Observed eventsShindo 3

Geisei Village芸西村

48 Observed eventsShindo 3

Hidaka Village日高村

42 Observed eventsShindo 3

Ino Townいの町

53 Observed eventsShindo 3

Kami City香美市

64 Observed eventsShindo 3

Kitagawa Village北川村

33 Observed eventsShindo 3

Kochi City高知市

111 Observed eventsShindo 3

Kuroshio Town黒潮町

126 Observed eventsShindo 4

Mihara Village三原村

30 Observed eventsShindo 4

Motoyama Town本山町

50 Observed eventsShindo 3

Muroto City室戸市

52 Observed eventsShindo 3

Nahari Town奈半利町

47 Observed eventsShindo 3

Nakatosa Town中土佐町

46 Observed eventsShindo 4

Nankoku City南国市

49 Observed eventsShindo 3

Niyodogawa Town仁淀川町

37 Observed eventsShindo 3

Ochi Town越知町

30 Observed eventsShindo 3

Okawa Village大川村

48 Observed eventsShindo 3

Otoyo Town大豊町

41 Observed eventsShindo 2

Otsuki Town大月町

76 Observed eventsShindo 4

Sakawa Town佐川町

41 Observed eventsShindo 3

Shimanto City四万十市

64 Observed eventsShindo 4

Shimanto Town四万十町

72 Observed eventsShindo 4

Sukumo City宿毛市

333 Observed eventsShindo 6−

Susaki City須崎市

41 Observed eventsShindo 3

Tano Town田野町

45 Observed eventsShindo 3

Tosa City土佐市

41 Observed eventsShindo 3

Tosa Town土佐町

67 Observed eventsShindo 3

Tosashimizu City土佐清水市

47 Observed eventsShindo 4

Toyo Town東洋町

69 Observed eventsShindo 4

Umaji Village馬路村

46 Observed eventsShindo 4

Yasuda Town安田町

46 Observed eventsShindo 3

GUIDES

Understand local Shindo in context

Guides to this place’s history, seismic intensity and notification tools.

8 min readJapan’s Shindo Scale: Earthquake Intensity Levels 0–7

Learn what Japan’s Shindo earthquake intensity scale measures, what levels 0, 5 Lower, 5 Upper and 7 mean, and why Shindo is different from magnitude.

Read guide 10 min readHow to use the JISHINDESU interactive map

A guide to the redesigned map panel: adding and switching places, ten years of history, filters, local Shindo readings, sharing and notifications.

Read guide 6 min readAre earthquakes becoming more frequent in Japan?

How to compare earthquake counts fairly—and why a few active days do not prove a lasting increase.

Read guide 4 min readAway from home? Monitor earthquakes in your Japanese town

Use home as the reference point and receive notifications without an account when a station within the selected radius reports your chosen Shindo level.

Read guide