West Saitama earthquake
The West Saitama earthquake (西埼玉地震) was an earthquake that occurred on 21 September 1931 in northern Saitama Prefecture, Japan. Its magnitude was M6.9. The earthquake killed 16 people and injured 146.
Start Sep 21, 1931Last edited Oct 15, 2026, 2:51 PM
Details
- Start
- Sep 21, 1931
- UTC time
- 1931-09-21 02:20:01
- ISC event ID
- 907024
- USGS-ANSS
- ComCat
- Local date
- 21 September 1931
- Local time
- 11:19:59
- Magnitude
- Moment magnitude scale 6.5, Japan Meteorological Agency magnitude scale M6.9
- Maximum intensity
- Japan Meteorological Agency seismic intensity scale Shindo 6: Kanto region (estimated)
- Focal depth
- 3 km
- Epicenter
- Northern Saitama Prefecture, Japan, 36.2° N 139.2° E / 36.2; 139.2
- Type
- Intracontinental crustal earthquake
- Affected area
- Kanto region, Japan
- Casualties
- 11 dead, 146 injured
- Location
- 36.0210, 139.3810
West Saitama earthquake (西埼玉地震) was an earthquake that occurred on 21 September 1931 in northern Saitama Prefecture, Japan.123 Its magnitude was M6.9.45 The earthquake killed 16 people and injured 146.63
Intensity
The following is a list of prefectures where intensity 4 or higher was observed.7
References
- 西埼玉强震報告 - 気象庁 驗震時報第5巻 pp.217-390
Footnotes
Footnotes
-
“埼玉県の地震活動の特徴 地震本部”. Retrieved 2 June 2021. ↩
-
活断層の地震に備える - 気象庁 ↩
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Last edited Oct 15, 2026, 2:51 PM · r86030 · Text is available under CC BY-SA 4.0.