Idaho earthquakes in 1981
10 earthquakes of magnitude 2.5 or more were located in Idaho in 1981. The largest: M4.3 14 km ESE of Soda Springs, Idaho, Dec 9, 1981.
From the USGS catalog. Times are local to each quake.
Map
Where every quake of 1981 was located in Idaho. Select one for its page.
Every quake of 1981
Magnitude 2.5 and up, newest first.
- 3.211 km E of Soda Springs, Idaho · 7 km deep
- 4.314 km ESE of Soda Springs, Idaho · 7 km deep
- 2.619 km ENE of Snowville, Utah · 8 km deep
- 3.718 km ENE of Georgetown, Idaho · 5 km deep
- 3.516 km ESE of Richland, Oregon · 5 km deep
- 3.224 km N of Stanley, Idaho · 5 km deep
- 3.423 km ESE of Donnelly, Idaho · 5 km deep
- 3.11 km N of Grace, Idaho · 5 km deep
- 3.86 km ESE of Island Park, Idaho · 5 km deep
- 3.530 km SSE of Sula, Montana · 5 km deep
Month by month
Counted by UTC date, which is how the catalog files them.
| Month | Quakes | Largest | Where |
|---|---|---|---|
| January 1981 | 0 | ||
| February 1981 | 0 | ||
| March 1981 | 1 | 3.5 | 30 km SSE of Sula, Montana |
| April 1981 | 1 | 3.8 | 6 km ESE of Island Park, Idaho |
| May 1981 | 1 | 3.1 | 1 km N of Grace, Idaho |
| June 1981 | 1 | 3.4 | 23 km ESE of Donnelly, Idaho |
| July 1981 | 0 | ||
| August 1981 | 0 | ||
| September 1981 | 3 | 3.7 | 18 km ENE of Georgetown, Idaho |
| October 1981 | 0 | ||
| November 1981 | 1 | 2.6 | 19 km ENE of Snowville, Utah |
| December 1981 | 2 | 4.3 | 14 km ESE of Soda Springs, Idaho |
What this means
The catalog is only as complete as the instruments of the time. Worldwide coverage of magnitude 5 and up dates from the 1960s, and of 4.5 from the 1990s; earlier years hold the large quakes and the ones near a station, so a low count in an early year means fewer instruments, not a quiet earth.
By year
Every year the USGS catalog covers.
- 2020s2020202120222023202420252026
- 2010s2010201120122013201420152016201720182019
- 2000s2000200120022003200420052006200720082009
- 1990s1990199119921993199419951996199719981999
- 1980s1980198119821983198419851986198719881989
- 1970s1970197119721973197419751976197719781979
- 1960s1960196119621963196419651966196719681969
- 1950s1950195119521953195419551956195719581959
- 1940s1940194119421943194419451946194719481949
- 1930s1930193119321933193419351936193719381939
- 1920s1920192119221923192419251926192719281929
- 1910s1910191119121913191419151916191719181919
- 1900s1900190119021903190419051906190719081909
Nearby
Sources
Earthquakes, magnitudes, depths, shaking estimates and felt reports from the U.S. Geological Survey Earthquake Hazards Program, read from its live feeds and its catalog back to 1900. Tsunami messages from NOAA’s tsunami warning centers.