- Type:
- Earthquake
- Date:
- May 19, 1940 CE
- Location:
- The 1940 Imperial Valley, California Earthquake
- Magnitude:
- 6.9 Mw
- Depth:
- 6 km
- Intensity (MMI):
- 8.859
Cross-catalog records
This event is recorded in 6 separate scientific catalogs, each of which may give a different magnitude (the disagreement between catalogs is itself valuable for research):
- USGS_COMCAT: Mw 6.9
- NOAA_SIGEQ: Ms 7.2
- USGS_COMCAT: ML 5.15
- USGS_COMCAT: ML 5.41
- USGS_COMCAT: ML 5.18
- USGS_COMCAT: ML 5.18
Other earthquake records of 1940 CE
- Romania · M 7.3 · 1,000 deaths
- China, Yunnan Province · Ms 6 · 181 deaths
- Peru · Mw 8.2 · 179 deaths
- Turkey, Kayseri, Develi · 37 deaths
- Turkey-Cis · M 6 · 16 deaths
- Japan, W. Hokkaido Island · Ms 7.5 · 10 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 6.9 - The 1940 Imperial Valley, California Earthquake (1940 CE) happen?
- May 19, 1940 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.