Usa City earthquake and Shindo history
宇佐市
Earthquakes for which stations associated with Usa City reported an actual Shindo observation.
Latest observation: Sep 21, 2026, 10:38 PM JSTLocal seismic profile
Since Apr 16, 2015, stations associated with Usa City have reported a local reading for 118 earthquakes. Shindo 1 was most common, while the highest local level, Shindo 4, was recorded 4 times.
Latest observationSep 21, 2026
Highest local Shindo4
Observed events118Apr 16, 2015–Sep 21, 2026
Associated observation stations3JMA
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 · 119 km
Aug 12, 2026, 01:05 PM JSTAmakusa and Ashikita Region, Kumamoto Prefecture
震度1M4.9 · 10 km · 133 km
Aug 6, 2026, 07:59 AM JSTAmakusa and Ashikita Region, Kumamoto Prefecture
震度1M5.1 · 10 km · 133 km
Aug 1, 2026, 09:47 PM JSTKumamoto Region, Kumamoto Prefecture
震度1M4.7 · 10 km · 104 km
Jul 30, 2026, 10:47 PM JSTKumamoto Region, Kumamoto Prefecture
震度1M4.8 · 20 km · 104 km
Jul 29, 2026, 11:02 PM JSTKumamoto Region, Kumamoto Prefecture
M4.3 · 10 km · 127 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 16, 2015 to Sep 21, 2026 · 3 records
All years · Shindo 3+ · Clear filtersObservation 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 16, 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
3 observed earthquakes
- 震度3Apr 16, 2016, 01:46 JSTKumamoto Region, Kumamoto PrefectureShindo in this place: 3 · Event maximum Shindo: 6−M6.020 km
- 震度3Apr 14, 2016, 21:26 JSTKumamoto Region, Kumamoto PrefectureShindo in this place: 3 · Event maximum Shindo: 7M6.410 km
- 震度3Jul 13, 2015, 02:52 JSTSouthern Oita PrefectureShindo in this place: 3 · Event maximum Shindo: 5+M5.760 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
332
Central Oita Prefecture大分県中部
144
Hyuganada Sea日向灘
134
Bungosuido Strait豊後水道
132
Iyonada Sea伊予灘
82
Aso Region, Kumamoto Prefecture熊本県阿蘇地方
8Local 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) · A44211
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 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 #2Subduction-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 #3Major 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 #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 (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 #6Major 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 #7Major active faultSuonada fault zone (Aio-oki fault segment)周防灘断層帯（秋穂沖断層区間）Modelled magnitude: M6.6
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 model #11Major 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 #12Major 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 #13Major 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 #14Major 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 #15Major 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 #16Major active faultMedian Tectonic Line (MTL) fault zone (Houyo-kaikyo - Yufuin segment)中央構造線断層帯（豊予海峡−由布院区間）Modelled magnitude: M7.2
Read about this model #17Major 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 #18Major 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 #19Major 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 #20Major active faultHijiu fault zone日出生断層帯Modelled magnitude: M6.9
Read about this model #21Major 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 #22Major 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 #23Major 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 #24Major 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 #25Major 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 #26Major active faultMedian Tectonic Line (MTL) fault zone (Iyonada segment)中央構造線断層帯（伊予灘区間）Modelled magnitude: M7.4
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 →