All earthquakesUtah

Utah earthquakes in 1987

86 earthquakes of magnitude 2.5 or more were located in Utah in 1987. The largest: M4.7 86 km E of Montello, Nevada, Sep 24, 1987.

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

19861988

Map

Where every quake of 1987 was located in Utah. Select one for its page.

Open the live map with earthquakes

Every quake of 1987

Magnitude 2.5 and up, newest first.

The largest

The 25 largest of 1987 in Utah.

Month by month

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

MonthQuakesLargestWhere
January 198773.39 km SSE of Mayfield, Utah
February 1987143.910 km ENE of Howell, Utah
March 198773.512 km N of Tabiona, Utah
April 1987113.510 km ENE of Howell, Utah
May 198722.710 km N of Junction, Utah
June 198763.223 km E of Glenwood, Utah
July 198732.96 km SSE of Salina, Utah
August 198732.810 km SW of Kanosh, Utah
September 1987124.786 km E of Montello, Nevada
October 1987124.685 km E of Montello, Nevada
November 198763.02 km SSW of Manti, Utah
December 198733.916 km NW of Orangeville, Utah

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

Utah nowWorldwide in 1987

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.