- Type:
- Earthquake
- Date:
- October 11, 1991 CE
- Location:
- 111 km SSW of Hihifo, Tonga
- Magnitude:
- 5 mb
- Depth:
- 130.7 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
- USGS_COMCAT: mb 5
- USGS_COMCAT: Ms 5
- USGS_COMCAT: Mw 5.5
- USGS_COMCAT: Mw 6.3
- USGS_COMCAT: mb 5.2
Other earthquake records of 1991 CE
- India, Chamoli, Uttarkashi, New Delhi, Chandigarh · Ms 7 · 2,000 deaths
- Afghanistan, Badakhstan, Baghlan, Laghman, Nagarhar · Mb 6.4 · 848 deaths
- Philippines, Luzon: Manila, Pinatubo Eruption · Ms 5.5 · 800 deaths
- Georgia, Dzhava, Chiatura, Ambrolauri · Ms 7 · 270 deaths
- Peru, Maca, Chivay, Yanque · Ms 4.7 · 92 deaths
- Costa Rica, Limon, Pandora, Panama · Mw 7.6 · 90 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 5.0 - 111 km SSW of Hihifo, Tonga (1991 CE) happen?
- October 11, 1991 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.