- Type:
- Earthquake
- Date:
- October 28, 1983 CE
- Location:
- Idaho, Borah Peak, Challis, Mackay
- Magnitude:
- 7.3 Ms
- Depth:
- 14 km
- Deaths:
- 2
- Injuries:
- 2
- Intensity (MMI):
- 9
- Damage:
- ~$12.5M (value at the time)
Cross-catalog records
This event is recorded in 5 separate scientific catalogs, each of which may give a different magnitude (the disagreement between catalogs is itself valuable for research):
- NOAA_SIGEQ: Ms 7.3
- USGS_COMCAT: Mw 6.9
- USGS_COMCAT: mb 5.4
- USGS_COMCAT: mb 5.4
- USGS_COMCAT: mb 5.5
Other earthquake records of 1983 CE
- Turkey, Erzurum, Kars, Khorasan, Pasinler, Narman · Ms 6.9 · 1,342 deaths
- Guinea, Gaoual-Koumbia · Ms 6.2 · 443 deaths
- Colombia, Sw, Popayan · Ms 4.9 · 350 deaths
- Japan, Honshu: Akita · Ms 7.7 · 104 deaths
- China, E, Heze-Dongming, Shandong Province · Ms 5.3 · 34 deaths
- Iran, Tehran, Damavond, Amoi · Ms 4.9 · 30 deaths
Source: NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database, doi:10.7289/V5TD9V7K · License: U.S. Government Work · institutional record ↗
Frequently asked questions
- When did 1983 CE Earthquake — Idaho, Borah Peak, Challis, Mackay happen?
- October 28, 1983 CE.
- Where does this information come from?
- This record comes from NOAA National Centers for Environmental Information (NCEI), Global Significant Earthquake Database, doi:10.7289/V5TD9V7K; it was not hand-authored and is stored together with its source.
- How many people died?
- Recorded estimate: 2. Historical death tolls vary by source.