- Type:
- Earthquake
- Date:
- December 21, 1939 CE
- Location:
- 4 km WNW of Atenas, Costa Rica
- Magnitude:
- 7.59 Mw
- Depth:
- 25 km
Cross-catalog records
This event is recorded in 4 separate scientific catalogs, each of which may give a different magnitude (the disagreement between catalogs is itself valuable for research):
- USGS_COMCAT: Mw 7.59
- USGS_COMCAT: Mw 6.04
- USGS_COMCAT: Mw 6.82
- USGS_COMCAT: Mw 6.11
Other earthquake records of 1939 CE
- Turkey, Erzincan · Mw 7.8 · 32,700 deaths
- Chile, Chillan · Ms 8.3 · 30,000 deaths
- Turkey · M 6.5 · 41 deaths
- Peru, Pomacanchi · 37 deaths
- Japan, Honshu: Nw · Ms 7 · 27 deaths
- Ghana, Accra · Mw 6.4 · 22 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 7.6 - 4 km WNW of Atenas, Costa Rica (1939 CE) happen?
- December 21, 1939 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.