- Type:
- Earthquake
- Date:
- March 29, 1957 CE
- Location:
- 68 km SSW of Unalaska, Alaska
- Magnitude:
- 6.84 Mw
- Depth:
- 25 km
- Intensity (MMI):
- 6.402
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 6.84
- USGS_COMCAT: Mw 6.71
- USGS_COMCAT: Mw 6.22
- USGS_COMCAT: Mw 6.41
- USGS_COMCAT: Mw 6.03
- USGS_COMCAT: Mw 5.7
Other earthquake records of 1957 CE
- Iran, Farsinaj · Mw 6.5 · 1,200 deaths
- Iran, Hazanderan, Abegarm · Mw 6.6 · 1,100 deaths
- Mexico, Acapulco, Mexico City · Ms 7.9 · 65 deaths
- Turkey, Abant · Mw 7.1 · 52 deaths
- Mongolia · Mw 8.1 · 30 deaths
- Turkey, Fethiye (Lycia, Asia Minor) · Mw 7.3 · 18 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 6.8 - 68 km SSW of Unalaska, Alaska (1957 CE) happen?
- March 29, 1957 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.
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