Iizuna Town earthquake and Shindo history
飯綱町
Earthquakes for which stations associated with Iizuna Town reported an actual Shindo observation.
Latest observation: Aug 23, 2026, 02:00 AM JSTLocal seismic profile
Since Mar 24, 2015, stations associated with Iizuna Town have reported a local reading for 95 earthquakes. Shindo 1 was most common, while the highest local level, Shindo 4, was recorded 1 times.
Latest observationAug 23, 2026
Highest local Shindo4
Observed events95Mar 24, 2015–Aug 23, 2026
Associated observation stations2JMA
Latest observation: Aug 23, 2026
Recent observed earthquakes
No local observation in the last 7 days. Latest observation: Aug 23, 2026
震度1
Aug 23, 2026, 02:00 AM JSTSouthern Ibaraki Prefecture
震度1M5.9 · 70 km · 186 km
Jun 26, 2026, 10:29 PM JSTEastern Region · Fuji Five Lakes, Yamanashi Prefecture
震度1M5.6 · 20 km · 145 km
Jun 25, 2026, 07:30 AM JSTOff the Coast of Iwate Prefecture
震度1M6.9 · 50 km · 521 km
Jun 16, 2026, 07:46 PM JSTSouthern Ibaraki Prefecture
震度1M5.5 · 50 km · 165 km
Jun 1, 2026, 05:54 AM JSTOff the Coast of Joetsu and Chuetsu, Niigata Prefecture
震度1M4.6 · 10 km · 84 km
Apr 23, 2026, 02:42 AM JSTNorthern Nagano Prefecture
M4.1 · 10 km · 35 km
2 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.
Mar 24, 2015 to Aug 23, 2026 · 95 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: Mar 24, 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: Aug 23, 2026
Recent observed earthquakes
95 observed earthquakes
- 震度1Aug 23, 2026, 02:00 JSTSouthern Ibaraki PrefectureShindo in this place: 1 · Event maximum Shindo: 5−M5.970 km
- 震度1Jun 26, 2026, 22:29 JSTEastern Region · Fuji Five Lakes, Yamanashi PrefectureShindo in this place: 1 · Event maximum Shindo: 6−M5.620 km
- 震度1Jun 25, 2026, 07:30 JSTOff the Coast of Iwate PrefectureShindo in this place: 1 · Event maximum Shindo: 6+M6.950 km
- 震度1Jun 16, 2026, 19:46 JSTSouthern Ibaraki PrefectureShindo in this place: 1 · Event maximum Shindo: 5−M5.550 km
- 震度1Jun 1, 2026, 05:54 JSTOff the Coast of Joetsu and Chuetsu, Niigata PrefectureShindo in this place: 1 · Event maximum Shindo: 3M4.610 km
- 震度1Apr 23, 2026, 02:42 JSTNorthern Nagano PrefectureShindo in this place: 1 · Event maximum Shindo: 3M4.110 km
- 震度2Apr 20, 2026, 16:53 JSTOff the Coast of SanrikuShindo in this place: 2 · Event maximum Shindo: 5+M7.510 km
- 震度1Apr 18, 2026, 16:21 JSTNorthern Nagano PrefectureShindo in this place: 1 · Event maximum Shindo: 3M3.610 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.
3
Northern Nagano Prefecture長野県北部
324
Noto, Ishikawa Prefecture石川県能登地方
182
Off the Coast of Joetsu and Chuetsu, Niigata Prefecture新潟県上中越沖
83
Adjacent Sado佐渡付近
43
Off the Coast of Fukushima Prefecture福島県沖
42
Joetsu, Niigata Prefecture新潟県上越地方
3Local 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) · A20590
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 faultItoigawa-Shizuoka-kozosen fault zone (Northern segment/Central northern segment/Central southern segment)糸魚川－静岡構造線断層帯（北部と中北部と中南部が同時に活動）
Modelled magnitude: M7.4
Read about this model #2Major active faultItoigawa-Shizuoka-kozosen fault zone (Northern segment)糸魚川−静岡構造線断層帯北部Modelled magnitude: M7.1
Read about this model #3Major active faultItoigawa-Shizuoka-kozosen fault zone (Northern segment/Central northern segment)糸魚川－静岡構造線断層帯（北部と中北部が同時に活動）Modelled magnitude: M7.2
Read about this model #4Major active faultItoigawa-Shizuoka-kozosen fault zone (All segment)糸魚川－静岡構造線断層帯（全体が同時に活動）Modelled magnitude: M7.5
Read about this model #5Major active faultNagano-bonchi-seien fault zone (All segment)長野盆地西縁断層帯（全体が同時に活動）Modelled magnitude: M7.3
Read about this model #6Major active faultNagano-bonchi-seien fault zone (Iyama-Chikuma segment)長野盆地西縁断層帯飯山−千曲区間Modelled magnitude: M7.2
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 Explained: What Levels 0–7 Mean
Shindo is Japan’s earthquake intensity scale. See what shaking each level means, from 0 to 7, and why a local Shindo reading 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 →