Wyoming earthquakes in 1975
7 earthquakes of magnitude 2.5 or more were located in Wyoming in 1975. The largest: M4.8 29 km NW of Jeffrey City, Wyoming, Mar 25, 1975.
From the USGS catalog. Times are local to each quake.
Map
Where every quake of 1975 was located in Wyoming. Select one for its page.
Every quake of 1975
Magnitude 2.5 and up, newest first.
- 3.114 km S of Hoback, Wyoming · 5 km deep
- 3.541 km NNE of Jeffrey City, Wyoming · 0 km deep
- 3.313 km SSE of Kelly, Wyoming · 5 km deep
- 3.314 km WSW of Rafter J Ranch, Wyoming · 5 km deep
- 3.721 km NE of Superior, Wyoming · 5 km deep
- 3.216 km N of Point of Rocks, Wyoming · 10 km deep
- 4.829 km NW of Jeffrey City, Wyoming · 10 km deep
Month by month
Counted by UTC date, which is how the catalog files them.
| Month | Quakes | Largest | Where |
|---|---|---|---|
| January 1975 | 0 | ||
| February 1975 | 0 | ||
| March 1975 | 1 | 4.8 | 29 km NW of Jeffrey City, Wyoming |
| April 1975 | 0 | ||
| May 1975 | 1 | 3.2 | 16 km N of Point of Rocks, Wyoming |
| June 1975 | 2 | 3.7 | 21 km NE of Superior, Wyoming |
| July 1975 | 1 | 3.3 | 13 km SSE of Kelly, Wyoming |
| August 1975 | 0 | ||
| September 1975 | 0 | ||
| October 1975 | 0 | ||
| November 1975 | 0 | ||
| December 1975 | 2 | 3.5 | 41 km NNE of Jeffrey City, Wyoming |
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.