- Type:
- Earthquake
- Date:
- March 11, 1981 CE
- Location:
- 225 km SSW of ‘Ohonua, Tonga
- Magnitude:
- 5.4 mb
- Depth:
- 33 km
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: mb 5.4
- USGS_COMCAT: mb 5.2
- USGS_COMCAT: Ms 5.5
- USGS_COMCAT: mb 5.1
- USGS_COMCAT: Ms 5.5
- USGS_COMCAT: mb 5.2
Other earthquake records of 1981 CE
- Iran, Se, Kerman · Mw 7 · 3,000 deaths
- Iran, Se: Golbaft · Mw 6.6 · 1,400 deaths
- Indonesia, New Guinea: Irian Jaya: Jayawijaya Mts · Ms 6.7 · 305 deaths
- Pakistan, Gilgit · Ms 5.9 · 220 deaths
- China, Sichuan Province · Ms 6.8 · 150 deaths
- Greece, Athens-Eastern Gulf Of Corinth · Ms 6.7 · 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 5.4 - 225 km SSW of ‘Ohonua, Tonga (1981 CE) happen?
- March 11, 1981 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.