A landform class assigned to the whole 250 m mesh and used to estimate AVS30. The name alone does not determine safety, and it is model data rather than a borehole survey at the station.
Kumagaya City earthquake and Shindo history in 2025
熊谷市
This annual view includes only earthquakes from 2025 for which stations associated with Kumagaya City recorded Shindo.
Data period: 1 January–31 December 2025In 2025, stations associated with Kumagaya City reported local Shindo for 8 earthquakes. The highest local level recorded that year was Shindo 3.
Observation history · 2025
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.
Observed events by year
Choose a year to update the event history and local Shindo distribution.
Shindo observed in this place
The highest reading from stations in this place, not the maximum Shindo of the whole event.
Observation history · 2025
8 observed earthquakes
- 震度2Oct 26, 2025, 22:35 JSTNorthwestern Chiba PrefectureShindo in this place: 2 · Event maximum Shindo: 2M4.380 km
- 震度2Oct 26, 2025, 12:04 JSTNorthern Tochigi PrefectureShindo in this place: 2 · Event maximum Shindo: 4M4.710 km
- 震度2Oct 5, 2025, 00:21 JSTOff the Coast of Fukushima PrefectureShindo in this place: 2 · Event maximum Shindo: 4M5.750 km
- 震度2Sep 5, 2025, 21:00 JSTSouthern Ibaraki PrefectureShindo in this place: 2 · Event maximum Shindo: 4M4.350 km
- 震度2Jul 30, 2025, 03:59 JSTSouthern Ibaraki PrefectureShindo in this place: 2 · Event maximum Shindo: 2M3.950 km
- 震度2Jul 15, 2025, 23:47 JSTNorthern Ibaraki PrefectureShindo in this place: 2 · Event maximum Shindo: 4M4.860 km
- 震度2Jun 27, 2025, 08:56 JSTNorthern Ibaraki PrefectureShindo in this place: 2 · Event maximum Shindo: 3M4.460 km
- 震度2Jan 7, 2025, 17:32 JSTAdjacent Sea of Torishima IslandShindo in this place: 2 · Event maximum Shindo: 2M6.0420 km
Ground & J-SHIS
The context below uses the place's full available history and reference models; it is not part of the 2025 statistics.
Where the shaking usually comes from
Source regions of earthquakes observed here, ordered by the number of reports.
Ground conditions near an observation station
J-SHIS data for the 250 m mesh containing 熊谷市桜町.
How to read these values
The average speed of an S-wave through the upper 30 metres. A lower value generally indicates softer material that can amplify shaking more. J-SHIS uses this value to estimate the amplification shown to the right. It is not predicted Shindo.
For the same incoming wave, local ground conditions may make peak-motion velocity at the surface about 23% higher than at engineering bedrock (Vs = 400 m/s). This value describes motion velocity—it does not multiply magnitude or forecast ground acceleration.
Ground conditions can change over short distances. These values do not rate the whole place or the safety of a building, and they cannot predict an earthquake. Source: J-SHIS (NIED), V4 model; processed for presentation by JISHINDESU.
Earthquake 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.
Modelled magnitude: M7.9–8.6
Read about this model #2Major active faultOta fault太田断層Modelled magnitude: M6.9
Read about this model #3Major active faultFukaya fault zone深谷断層帯Modelled magnitude: M7.2
Read about this model #4Subduction-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 #5Major active faultOkubo fault大久保断層Modelled magnitude: M7.0
Read about this model #6Major 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 #7Major 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 #8Major 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 #9Major active faultAyasegawa fault (Kounosu-Ina segment)綾瀬川断層鴻巣-伊奈区間Modelled magnitude: M6.5
Read about this model #10Subduction-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 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.
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.
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 →