Sanyo Onoda City earthquake and Shindo history
山陽小野田市
Earthquakes for which stations associated with Sanyo Onoda City reported an actual Shindo observation.
Latest observation: Sep 21, 2026, 10:38 PM JSTLocal seismic profile
Since May 30, 2015, stations associated with Sanyo Onoda City have reported a local reading for 110 earthquakes. Shindo 1 was most common, while the highest local level, Shindo 4, was recorded 2 times.
Latest observationSep 21, 2026
Highest local Shindo4
Observed events110May 30, 2015–Sep 21, 2026
Associated observation stations2JMA
Latest observation: Sep 21, 2026
Recent observed earthquakes
No local observation in the last 7 days. Latest observation: Sep 21, 2026
震度1
Sep 21, 2026, 10:38 PM JSTHyuganada Sea
震度1M4.8 · 30 km · 181 km
Aug 12, 2026, 01:05 PM JSTAmakusa and Ashikita Region, Kumamoto Prefecture
震度1M4.9 · 10 km · 181 km
Aug 6, 2026, 07:49 PM JSTKumamoto Region, Kumamoto Prefecture
震度1M4.5 · 10 km · 152 km
Aug 6, 2026, 07:59 AM JSTAmakusa and Ashikita Region, Kumamoto Prefecture
震度1M5.1 · 10 km · 181 km
Aug 1, 2026, 09:47 PM JSTKumamoto Region, Kumamoto Prefecture
震度2M4.7 · 10 km · 154 km
Jul 30, 2026, 10:47 PM JSTKumamoto Region, Kumamoto Prefecture
M4.8 · 20 km · 154 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.
May 30, 2015 to Sep 21, 2026 · 110 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: May 30, 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
110 observed earthquakes
- 震度1Sep 21, 2026, 22:38 JSTHyuganada SeaShindo in this place: 1 · Event maximum Shindo: 3M4.830 km
- 震度1Aug 12, 2026, 13:05 JSTAmakusa and Ashikita Region, Kumamoto PrefectureShindo in this place: 1 · Event maximum Shindo: 4M4.910 km
- 震度1Aug 6, 2026, 19:49 JSTKumamoto Region, Kumamoto PrefectureShindo in this place: 1 · Event maximum Shindo: 4M4.510 km
- 震度1Aug 6, 2026, 07:59 JSTAmakusa and Ashikita Region, Kumamoto PrefectureShindo in this place: 1 · Event maximum Shindo: 4M5.110 km
- 震度1Aug 1, 2026, 21:47 JSTKumamoto Region, Kumamoto PrefectureShindo in this place: 1 · Event maximum Shindo: 5−M4.710 km
- 震度2Jul 30, 2026, 22:47 JSTKumamoto Region, Kumamoto PrefectureShindo in this place: 2 · Event maximum Shindo: 4M4.820 km
- 震度1Jul 30, 2026, 05:16 JSTKumamoto Region, Kumamoto PrefectureShindo in this place: 1 · Event maximum Shindo: 4M4.610 km
- 震度1Jul 29, 2026, 22:19 JSTAmakusa and Ashikita Region, Kumamoto PrefectureShindo in this place: 1 · Event maximum Shindo: 5−M5.80 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.
4
Kumamoto Region, Kumamoto Prefecture熊本県熊本地方
424
Hyuganada Sea日向灘
123
Bungosuido Strait豊後水道
112
Iyonada Sea伊予灘
72
Aso Region, Kumamoto Prefecture熊本県阿蘇地方
53
Western Shimane Prefecture島根県西部
4Local 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) · A35216
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 faultKikugawa fault zone (Central segment)菊川断層帯（中部区間）
Modelled magnitude: M7.0
Read about this model #2Major active faultKikugawa fault zone (Southern segment)菊川断層帯（南部区間）Modelled magnitude: M6.5
Read about this model #3Major active faultKikugawa fault zone (Central segment/Southern segment)菊川断層帯（中部区間と南部区間が同時に活動）Modelled magnitude: M7.2
Read about this model #4Major active faultKikugawa fault zone (All segment)菊川断層帯（全体が同時に活動）Modelled magnitude: M7.4
Read about this model #5Major active faultKikugawa fault zone (Northern segment/Central segment)菊川断層帯（北部区間と中部区間が同時に活動）Modelled magnitude: M7.4
Read about this model #6Major active faultSuonada fault zone (Main part segment)周防灘断層帯（周防灘断層帯主部区間）Modelled magnitude: M7.0
Read about this model #7Major active faultOhara-ko fault大原湖断層Modelled magnitude: M7.0
Read about this model #8Major active faultUbe-Nanpou-oki fault宇部南方沖断層Modelled magnitude: M6.4
Read about this model #9Major active faultKokura-higashi fault zone小倉東断層Modelled magnitude: M6.6
Read about this model #10Major active faultOgori fault小郡断層Modelled magnitude: M6.8
Read about this model #11Major 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 #12Major 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 #13Major 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 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 →