Chiba earthquake and Shindo history
千葉県
Earthquakes for which stations associated with Chiba reported an actual Shindo observation.
Latest observation: Nov 6, 2026, 07:39 PM JSTLATEST LOCAL OBSERVATION
Latest earthquake observed in Chiba
震度2
Highest Shindo observed in ChibaSource region: Off the east Coast of KantoM6.1
Local seismic profile
Since Jan 10, 2015, stations associated with Chiba have reported a local reading for 1,857 earthquakes. Shindo 1 was most common, while the highest local level, Shindo 5+, was recorded 1 times.
Latest observationNov 6, 2026
Highest local Shindo5+
Observed events1,857Jan 10, 2015–Nov 6, 2026
Associated observation stations123JMA
Latest observation: Nov 6, 2026
Recent observed earthquakes
Earthquakes for which stations associated with Chiba reported an actual Shindo observation.
震度2
Nov 6, 2026, 07:39 PM JSTOff the east Coast of Kanto
震度1M6.1 · 10 km · 190 km
Nov 6, 2026, 09:06 AM JSTSagami Bay
震度2M3.7 · 140 km · 77 km
Nov 4, 2026, 05:34 AM JSTOff the east Coast of Chiba Prefecture
震度3M3.4 · 60 km · 24 km
Nov 3, 2026, 02:40 PM JSTNortheastern Chiba Prefecture
震度2M4.7 · 50 km · 37 km
Nov 1, 2026, 07:15 AM JSTOff the southeast Coast of Mie Prefecture
震度1M6.1 · 350 km · 353 km
Oct 29, 2026, 05:22 AM JSTNortheastern Chiba Prefecture
M3.5 · 50 km · 46 km
123 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.
Jan 10, 2015 to Nov 6, 2026 · 7 records
All years · Shindo 5−+ · 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: Jan 10, 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: Nov 6, 2026
Recent observed earthquakes
7 observed earthquakes
- 震度5−Oct 29, 2026, 00:07 JSTNortheastern Chiba PrefectureShindo in this place: 5− · Event maximum Shindo: 5−M5.450 km
- 震度5−Aug 23, 2026, 02:00 JSTSouthern Ibaraki PrefectureShindo in this place: 5− · Event maximum Shindo: 5−M5.970 km
- 震度5−May 26, 2023, 19:03 JSTOff the east Coast of Chiba PrefectureShindo in this place: 5− · Event maximum Shindo: 5−M6.250 km
- 震度5−Oct 7, 2021, 22:41 JSTNorthwestern Chiba PrefectureShindo in this place: 5− · Event maximum Shindo: 5+M6.180 km
- 震度5−Jun 25, 2020, 04:47 JSTOff the east Coast of Chiba PrefectureShindo in this place: 5− · Event maximum Shindo: 5−M6.230 km
- 震度5−May 25, 2019, 15:20 JSTSouthern Chiba PrefectureShindo in this place: 5− · Event maximum Shindo: 5−M5.140 km
- 震度5−Jul 7, 2018, 20:23 JSTOff the east Coast of Chiba PrefectureShindo in this place: 5− · Event maximum Shindo: 5−M6.050 km
Regional context
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−
Off the east Coast of Chiba Prefecture千葉県東方沖
4665−
Southern Ibaraki Prefecture茨城県南部
2543
Off the Coast of Ibaraki Prefecture茨城県沖
1825−
Northwestern Chiba Prefecture千葉県北西部
1795−
Northeastern Chiba Prefecture千葉県北東部
1524
Off the Coast of Fukushima Prefecture福島県沖
100Local 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) · A12000
J-SHIS / NIEDEarthquake scenarios affecting this place
Official J-SHIS models ranked for their potential impact on this prefecture.
#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 earthquakeSagami Trough earthquakes (M8 class)相模トラフ沿いのM8クラスの地震
Modelled magnitude: M7.9–8.6
Read about this model #2Major active faultAyasegawa fault (Ina-Kawaguchi segment)綾瀬川断層伊奈－川口区間Modelled magnitude: M6.5
Read about this model #3Major active faultMiura-hanto fault group (Main part/Kinugasa/Kitatake fault zone)三浦半島断層群主部衣笠・北武断層帯Modelled magnitude: M6.7
Read about this model #4Major active faultFukaya fault zone深谷断層帯Modelled magnitude: M7.2
Read about this model #5Subduction-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 #6Major active faultMiura-hanto fault group (Main part/Takeyama fault zone)三浦半島断層群主部武山断層帯Modelled magnitude: M6.5
Read about this model #7Major active faultKamogawa-teichi fault zone鴨川低地断層帯Modelled magnitude: M6.7
Read about this model #8Other active faultKamogawa-techi fault zone kita fault鴨川低地断層帯北断層Modelled magnitude: M6.8
Read about this model #9Major active faultMiura-hanto fault group (Southern part)三浦半島断層群南部Modelled magnitude: M7.0
Read about this model #10Major active faultFukaya/Ayasegawa fault zone (All segment)深谷断層・綾瀬川断層（全体が同時に活動）Modelled magnitude: M7.5
Read about this model #11Major active faultFukaya/Ayasegawa fault zone (Kounosu-Ina segment/Ina-Kawaguchi segment)深谷断層・綾瀬川断層（鴻巣－伊奈区間と伊奈－川口区間が同時に活動）Modelled magnitude: M7.0
Read about this model #12Major active faultFukaya/Ayasegawa fault zone (Fukaya fault zone/Kounosu-Ina segment)深谷断層・綾瀬川断層（深谷断層と鴻巣－伊奈区間が同時に活動）Modelled magnitude: M7.4
Read about this model #13Subduction-zone earthquakeMega earthquakes along the Japan Trench (Great East Japan Earthquake 2011 type)日本海溝沿いの超巨大地震（東北地方太平洋沖型）Modelled magnitude: M8.6–9.0
Read about this model #14Major active faultAyasegawa fault (Kounosu-Ina segment)綾瀬川断層鴻巣－伊奈区間Modelled magnitude: M6.5
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
Municipalities in this prefecture
Municipalities with an observation history, ordered alphabetically. Counts depend on station coverage and the available data period; they are not a risk ranking.
Abiko City我孫子市
282 Observed eventsShindo 4
→Asahi City旭市
536 Observed eventsShindo 5−
→Chiba Chuo Ward千葉市中央区
571 Observed eventsShindo 5−
→Chiba Hanamigawa Ward千葉市花見川区
619 Observed eventsShindo 4
→Chiba Inage Ward千葉市稲毛区
503 Observed eventsShindo 4
→Chiba Midori Ward千葉市緑区
430 Observed eventsShindo 4
→Chiba Mihama Ward千葉市美浜区
625 Observed eventsShindo 4
→Chiba Wakaba Ward千葉市若葉区
490 Observed eventsShindo 4
→Chonan Town長南町
659 Observed eventsShindo 5−
→Chosei Village長生村
226 Observed eventsShindo 4
→Choshi City銚子市
464 Observed eventsShindo 5−
→Funabashi City船橋市
403 Observed eventsShindo 5−
→Futtsu City富津市
252 Observed eventsShindo 4
→Ichihara City市原市
616 Observed eventsShindo 4
→Ichikawa City市川市
282 Observed eventsShindo 4
→Ichinomiya Town一宮町
547 Observed eventsShindo 4
→Inzai City印西市
460 Observed eventsShindo 5−
→Isumi Cityいすみ市
287 Observed eventsShindo 4
→Kamagaya City鎌ケ谷市
601 Observed eventsShindo 4
→Kamogawa City鴨川市
332 Observed eventsShindo 4
→Kashiwa City柏市
579 Observed eventsShindo 4
→Katori City香取市
852 Observed eventsShindo 4
→Katsuura City勝浦市
357 Observed eventsShindo 4
→Kimitsu City君津市
489 Observed eventsShindo 5−
→Kisarazu City木更津市
343 Observed eventsShindo 5+
→Kozaki Town神崎町
369 Observed eventsShindo 4
→Kujukuri Town九十九里町
337 Observed eventsShindo 4
→Kyonan Town鋸南町
189 Observed eventsShindo 4
→Matsudo City松戸市
326 Observed eventsShindo 5−
→Minamiboso City南房総市
277 Observed eventsShindo 4
→Mobara City茂原市
245 Observed eventsShindo 4
→Mutsuzawa Town睦沢町
261 Observed eventsShindo 4
→Nagara Town長柄町
232 Observed eventsShindo 4
→Nagareyama City流山市
233 Observed eventsShindo 5−
→Narashino City習志野市
479 Observed eventsShindo 4
→Narita City成田市
647 Observed eventsShindo 4
→Noda City野田市
791 Observed eventsShindo 4
→Oamishirasato City大網白里市
380 Observed eventsShindo 4
→Onjuku Town御宿町
79 Observed eventsShindo 3
→Otaki Town大多喜町
258 Observed eventsShindo 4
→Sakae Town栄町
500 Observed eventsShindo 4
→Sammu City山武市
665 Observed eventsShindo 4
→Shibayama Town芝山町
624 Observed eventsShindo 4
→Shirako Town白子町
217 Observed eventsShindo 4
→Shiroi City白井市
623 Observed eventsShindo 4
→Shisui Town酒々井町
251 Observed eventsShindo 3
→Sodegaura City袖ケ浦市
145 Observed eventsShindo 4
→Sosa City匝瑳市
325 Observed eventsShindo 4
→Tako Town多古町
633 Observed eventsShindo 4
→Tateyama City館山市
368 Observed eventsShindo 4
→Togane City東金市
742 Observed eventsShindo 4
→Tohnosho Town東庄町
216 Observed eventsShindo 4
→Tomisato City富里市
365 Observed eventsShindo 4
→Urayasu City浦安市
504 Observed eventsShindo 5−
→Yachimata City八街市
302 Observed eventsShindo 4
→Yachiyo City八千代市
662 Observed eventsShindo 4
→Yokoshibahikari Town横芝光町
352 Observed eventsShindo 5−
→Yotsukaido City四街道市
346 Observed eventsShindo 4
→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 →