Montana earthquakes in 1974
12 earthquakes of magnitude 2.5 or more were located in Montana in 1974. The largest: M4.9 11 km ENE of Hebgen Lake Estates, Montana, Jun 8, 1974.
From the USGS catalog. Times are local to each quake.
Map
Where every quake of 1974 was located in Montana. Select one for its page.
Every quake of 1974
Magnitude 2.5 and up, newest first.
- 3.918 km SSW of Mammoth, Wyoming · 5 km deep
- 4.016 km WSW of West Yellowstone, Montana · 5 km deep
- 4.624 km ENE of West Yellowstone, Montana · 5 km deep
- 3.526 km S of Mammoth, Wyoming · 5 km deep
- 4.427 km S of Mammoth, Wyoming · 5 km deep
- 4.527 km E of West Yellowstone, Montana · 2 km deep
- 4.524 km E of West Yellowstone, Montana · 1 km deep
- 3.71 km NW of Trego, Montana · 13 km deep
- 4.43 km SW of Manhattan, Montana · 10 km deep
- 4.810 km S of West Yellowstone, Montana · 5 km deep
- 4.911 km ENE of Hebgen Lake Estates, Montana · 5 km deep
- 3.825 km E of West Yellowstone, Montana · 33 km deep
Month by month
Counted by UTC date, which is how the catalog files them.
| Month | Quakes | Largest | Where |
|---|---|---|---|
| January 1974 | 0 | ||
| February 1974 | 0 | ||
| March 1974 | 1 | 3.8 | 25 km E of West Yellowstone, Montana |
| April 1974 | 0 | ||
| May 1974 | 0 | ||
| June 1974 | 1 | 4.9 | 11 km ENE of Hebgen Lake Estates, Montana |
| July 1974 | 3 | 4.8 | 10 km S of West Yellowstone, Montana |
| August 1974 | 2 | 4.5 | 27 km E of West Yellowstone, Montana |
| September 1974 | 0 | ||
| October 1974 | 5 | 4.6 | 24 km ENE of West Yellowstone, Montana |
| November 1974 | 0 | ||
| December 1974 | 0 |
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.
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- 2000s2000200120022003200420052006200720082009
- 1990s1990199119921993199419951996199719981999
- 1980s1980198119821983198419851986198719881989
- 1970s1970197119721973197419751976197719781979
- 1960s1960196119621963196419651966196719681969
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- 1940s1940194119421943194419451946194719481949
- 1930s1930193119321933193419351936193719381939
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- 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.