A landform class assigned to the whole 250 m mesh and used to estimate AVS30. The name alone does not determine safety, and it is model data rather than a borehole survey at the station.
Saga City earthquake and Shindo history in 2021
佐賀市
This annual view includes only earthquakes from 2021 for which stations associated with Saga City recorded Shindo.
Data period: 1 January–31 December 2021Data period: 1 January–31 December 2021
In 2021, stations associated with Saga City reported local Shindo for 5 earthquakes. The highest local level recorded that year was Shindo 2.
Observed events52021
Highest local Shindo22021
Data period: 1 January–31 December 2021 · 5 observed earthquakes
2021 · Shindo 1+ · Clear filtersObservation 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.
First observation: May 27, 2015
All yearsObserved events by year
Choose a year to update the event history and local Shindo distribution.
2021
All ShindoShindo observed in this place
The highest reading from stations in this place, not the maximum Shindo of the whole event.
Data period: 1 January–31 December 2021
Observation history · 2021
5 observed earthquakes
- 震度1Oct 6, 2021, 17:13 JSTOff the east Coast of Osumi PeninsulaShindo in this place: 1 · Event maximum Shindo: 4M5.540 km
- 震度1May 6, 2021, 09:16 JSTKumamoto Region, Kumamoto PrefectureShindo in this place: 1 · Event maximum Shindo: 4M4.010 km
- 震度1Mar 14, 2021, 09:22 JSTKumamoto Region, Kumamoto PrefectureShindo in this place: 1 · Event maximum Shindo: 4M4.410 km
- 震度1Feb 1, 2021, 16:17 JSTKumamoto Region, Kumamoto PrefectureShindo in this place: 1 · Event maximum Shindo: 2M3.910 km
- 震度1Jan 24, 2021, 00:57 JSTKumamoto Region, Kumamoto PrefectureShindo in this place: 1 · Event maximum Shindo: 3M3.910 km
Ground & J-SHIS
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.
5+
Kumamoto Region, Kumamoto Prefecture熊本県熊本地方
1134
Hyuganada Sea日向灘
283
Aso Region, Kumamoto Prefecture熊本県阿蘇地方
193
Amakusa and Ashikita Region, Kumamoto Prefecture熊本県天草・芦北地方
172
Off the northwest Coast of Fukuoka Prefecture福岡県北西沖
73
Off the east Coast of Osumi Peninsula大隅半島東方沖
5Reference model · not a forecast J-SHIS (NIED) · 250 m · 4930722412
J-SHIS / NIEDGround conditions near an observation station
J-SHIS data for the 250 m mesh containing 佐賀市駅前中央.
How to read these values
The average speed of an S-wave through the upper 30 metres. A lower value generally indicates softer material that can amplify shaking more. J-SHIS uses this value to estimate the amplification shown to the right. It is not predicted Shindo.
For the same incoming wave, local ground conditions may make peak-motion velocity at the surface about 103% higher than at engineering bedrock (Vs = 400 m/s). This value describes motion velocity—it does not multiply magnitude or forecast ground acceleration.
Ground conditions can change over short distances. These values do not rate the whole place or the safety of a building, and they cannot predict an earthquake. Source: J-SHIS (NIED), V4 model; processed for presentation by JISHINDESU.
Reference model · not a forecast J-SHIS (NIED) · A41201
J-SHIS / NIEDEarthquake scenarios affecting this place
Official J-SHIS models ranked for their potential impact on this municipality.
#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.
#1Major active faultSaga-heiya-hokuen fault zone佐賀平野北縁断層帯
Modelled magnitude: M6.9
Read about this model #2Major active faultNishiyama fault zone (All segment)西山断層帯 (全体が同時に活動)Modelled magnitude: M7.5
Read about this model #3Major active faultNishiyama fault zone (Nishiyama segment/Kama-toge segment)西山断層帯（西山区間と嘉麻峠区間が同時に活動）Modelled magnitude: M7.3
Read about this model #4Major active faultHinata-Okasagi-toge fault zone日向峠-小笠木峠断層帯Modelled magnitude: M6.7
Read about this model #5Major active faultNishiyama fault zone (Oshima-Oki segment/Nishiyama segment)西山断層帯（大島沖区間と西山区間が同時に活動）Modelled magnitude: M7.3
Read about this model #6Major active faultKego fault zone (All segment)警固断層帯 (全体が同時に活動)Modelled magnitude: M7.1
Read about this model #7Major active faultMinou fault zone水縄断層帯Modelled magnitude: M6.7
Read about this model #8Major 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 #9Major 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 #10Major 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 modelJ-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
Nearby places
Municipalities nearest to the representative station position.
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 mapA 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 townUse 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 →