Arkansas earthquakes in 1985
10 earthquakes of magnitude 2.5 or more were located in Arkansas in 1985. The largest: M3.5 6 km NE of Dell, Arkansas, Dec 5, 1985.
From the USGS catalog. Times are local to each quake.
Map
Where every quake of 1985 was located in Arkansas. Select one for its page.
Every quake of 1985
Magnitude 2.5 and up, newest first.
- 2.71 km NW of Etowah, Arkansas · 11 km deep
- 3.56 km NE of Dell, Arkansas · 6 km deep
- 2.53 km ESE of Greenbrier, Arkansas · 4 km deep
- 2.54 km WNW of Dell, Arkansas · 5 km deep
- 3.13 km NNE of Enola, Arkansas · 4 km deep
- 2.55 km NNE of Cushman, Arkansas · 8 km deep
- 3.37 km WNW of Pelsor, Arkansas · 2 km deep
- 3.31 km N of Enola, Arkansas · 5 km deep
- 2.73 km NNW of Enola, Arkansas · 7 km deep
- 2.78 km ENE of Pocahontas, Arkansas · 10 km deep
Month by month
Counted by UTC date, which is how the catalog files them.
| Month | Quakes | Largest | Where |
|---|---|---|---|
| January 1985 | 0 | ||
| February 1985 | 0 | ||
| March 1985 | 0 | ||
| April 1985 | 0 | ||
| May 1985 | 1 | 2.7 | 8 km ENE of Pocahontas, Arkansas |
| June 1985 | 0 | ||
| July 1985 | 0 | ||
| August 1985 | 2 | 3.3 | 1 km N of Enola, Arkansas |
| September 1985 | 1 | 3.3 | 7 km WNW of Pelsor, Arkansas |
| October 1985 | 1 | 2.5 | 5 km NNE of Cushman, Arkansas |
| November 1985 | 3 | 3.1 | 3 km NNE of Enola, Arkansas |
| December 1985 | 2 | 3.5 | 6 km NE of Dell, Arkansas |
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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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.