- Type:
- Earthquake
- Date:
- September 21, 1931 CE
- Location:
- 1 km WNW of Kumagaya, Japan
- Magnitude:
- 6.5 Mw
- Depth:
- 15 km
- Intensity (MMI):
- 6.683
Cross-catalog records
This event is recorded in 5 separate scientific catalogs, each of which may give a different magnitude (the disagreement between catalogs is itself valuable for research):
- USGS_COMCAT: Mw 6.5
- NOAA_SIGEQ: M 7
- USGS_COMCAT: Mw 5.71
- USGS_COMCAT: Mw 6.13
- USGS_COMCAT: Mw 6.03
Other earthquake records of 1931 CE
- China, Xinjiang Weiwuer Zizhiqu Province: N · Mw 8 · 10,000 deaths
- Armenia, Zangezur, Nakhitchevan · Ms 6.3 · 2,890 deaths
- Nicaragua, Managua · M 5.6 · 2,450 deaths
- New Zealand, Hawke Bay · Mw 7.7 · 261 deaths
- Albania, Korce · M 5.8 · 90 deaths
- Solomon Islands, San Cristobal Island · Mw 7.8 · 50 deaths
Source: U.S. Geological Survey, Advanced National Seismic System (ANSS) Comprehensive Catalog (ComCat) · License: U.S. Public Domain (USGS) · institutional record ↗
Frequently asked questions
- When did M 6.5 - 1 km WNW of Kumagaya, Japan (1931 CE) happen?
- September 21, 1931 CE.
- Where does this information come from?
- This record comes from U.S. Geological Survey, Advanced National Seismic System (ANSS) Comprehensive Catalog (ComCat); it was not hand-authored and is stored together with its source.