Isa City earthquake and Shindo history
伊佐市
Earthquakes for which stations associated with Isa City reported an actual Shindo observation.
Latest observation: Sep 21, 2026, 10:38 PM JSTLATEST LOCAL OBSERVATION
Latest earthquake observed in Isa City
震度1
Highest Shindo observed in Isa CitySource region: Hyuganada SeaM4.8
Local seismic profile
Since Apr 12, 2015, stations associated with Isa City have reported a local reading for 345 earthquakes. Shindo 1 was most common, while the highest local level, Shindo 5−, was recorded 1 times.
Latest observationSep 21, 2026
Highest local Shindo5−
Observed events345Apr 12, 2015–Sep 21, 2026
Associated observation stations3JMA
Latest observation: Sep 21, 2026
Recent observed earthquakes
Earthquakes for which stations associated with Isa City reported an actual Shindo observation.
震度1
Sep 21, 2026, 10:38 PM JSTHyuganada Sea
震度2M4.8 · 30 km · 152 km
Sep 19, 2026, 09:07 PM JSTAmakusanada Sea
震度3M4.4 · 10 km · 89 km
Sep 16, 2026, 06:09 AM JSTAmakusa and Ashikita Region, Kumamoto Prefecture
震度1M4.0 · 10 km · 24 km
Sep 8, 2026, 01:54 PM JSTAmakusa and Ashikita Region, Kumamoto Prefecture
震度1M3.5 · 10 km · 49 km
Sep 7, 2026, 11:21 PM JSTKumamoto Region, Kumamoto Prefecture
震度1M3.8 · 10 km · 48 km
Aug 29, 2026, 10:43 PM JSTKumamoto Region, Kumamoto Prefecture
M3.6 · 10 km · 48 km
3 Associated observation stations
Open this place on the mapStations and strongest local observations
The map combines stations assigned to this place with earthquakes that produced its strongest local readings.
Apr 12, 2015 to Sep 21, 2026 · 345 records
Observation history
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: Apr 12, 2015
All yearsObserved events by year
Choose a year to update the event history and local Shindo distribution.
All years
All ShindoShindo observed in this place
The highest reading from stations in this place, not the maximum Shindo of the whole event.
Latest observation: Sep 21, 2026
Recent observed earthquakes
345 observed earthquakes
- 震度1Sep 21, 2026, 22:38 JSTHyuganada SeaShindo in this place: 1 · Event maximum Shindo: 3M4.830 km
- 震度2Sep 19, 2026, 21:07 JSTAmakusanada SeaShindo in this place: 2 · Event maximum Shindo: 3M4.410 km
- 震度3Sep 16, 2026, 06:09 JSTAmakusa and Ashikita Region, Kumamoto PrefectureShindo in this place: 3 · Event maximum Shindo: 4M4.010 km
- 震度1Sep 8, 2026, 13:54 JSTAmakusa and Ashikita Region, Kumamoto PrefectureShindo in this place: 1 · Event maximum Shindo: 2M3.510 km
- 震度1Sep 7, 2026, 23:21 JSTKumamoto Region, Kumamoto PrefectureShindo in this place: 1 · Event maximum Shindo: 3M3.810 km
- 震度1Aug 29, 2026, 22:43 JSTKumamoto Region, Kumamoto PrefectureShindo in this place: 1 · Event maximum Shindo: 2M3.610 km
- 震度1Aug 27, 2026, 04:26 JSTAmakusa and Ashikita Region, Kumamoto PrefectureShindo in this place: 1 · Event maximum Shindo: 3M3.810 km
- 震度1Aug 26, 2026, 11:33 JSTKumamoto Region, Kumamoto PrefectureShindo in this place: 1 · Event maximum Shindo: 2M3.310 km
Ground & J-SHIS
A change in the number of observations cannot by itself predict a larger earthquake.
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
1703
Amakusa and Ashikita Region, Kumamoto Prefecture熊本県天草・芦北地方
614
Hyuganada Sea日向灘
262
Satsuma Region, Kagoshima Prefecture鹿児島県薩摩地方
233
Off the west Coast of Satsuma Peninsula薩摩半島西方沖
153
Aso Region, Kumamoto Prefecture熊本県阿蘇地方
11Local seismic profile
Recent observations in long-term context
A change in the number of observations cannot by itself predict a larger earthquake.
Reference model · not a forecast J-SHIS (NIED) · A46224
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.
#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 faultHinagu fault zone (Hinagu segment/Yatsushirokai segment)日奈久断層帯（日奈久区間と八代海区間が同時に活動）Modelled magnitude: M7.2
Read about this model #3Major active faultHitoyoshi-bonchi-nanen fault zone人吉盆地南縁断層Modelled magnitude: M6.6
Read about this model #4Major active faultHinagu fault zone (All segment)日奈久断層帯 (全体が同時に活動)Modelled magnitude: M7.3
Read about this model #5Major active faultHinagu fault zone (Takano-Shirahata segment/Hinagu segment)日奈久断層帯（高野-白旗区間と日奈久区間が同時に活動）Modelled magnitude: M7.1
Read about this model #6Major active faultIzumi fault zone出水断層帯Modelled magnitude: M6.5
Read about this model #7Major active faultFutagawa/Hinagu fault zone (Futagawa segment/all segment of Hinagu fault zone)布田川断層帯・日奈久断層帯 (布田川区間と日奈久断層帯全体が同時に活動)Modelled magnitude: M7.4
Read about this model #8Major active faultFutagawa/Hinagu fault zone (Futagawa segment/Takano-Shirahata segment/Hinagu segment)布田川断層帯・日奈久断層帯（布田川区間と高野-白旗区間と日奈久区間が同時に活動）Modelled magnitude: M7.3
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 →