All earthquakesWyoming

Wyoming earthquakes in 1985

24 earthquakes of magnitude 2.5 or more were located in Wyoming in 1985. The largest: M4.8 12 km S of Hoback, Wyoming, Aug 21, 1985.

From the USGS catalog. Times are local to each quake.

19841986

Map

Where every quake of 1985 was located in Wyoming. Select one for its page.

Open the live map with earthquakes

Every quake of 1985

Magnitude 2.5 and up, newest first.

Month by month

Counted by UTC date, which is how the catalog files them.

MonthQuakesLargestWhere
January 198513.216 km NNW of Alpine Northeast, Wyoming
February 198523.511 km E of Star Valley Ranch, Wyoming
March 198553.69 km ENE of Star Valley Ranch, Wyoming
April 19850
May 19850
June 19850
July 198514.012 km NW of Alpine Northwest, Wyoming
August 198584.812 km S of Hoback, Wyoming
September 198534.614 km SSE of Hoback, Wyoming
October 198523.510 km ENE of Superior, Wyoming
November 19850
December 198523.511 km ENE of Superior, 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.

Nearby

Wyoming nowWorldwide in 1985

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.