Tennessee earthquakes

M1.7 earthquake 3 km SE of Ridgely, Tennessee

A magnitude 1.7 earthquake struck 3 km SE of Ridgely, Tennessee on Fri, Jul 7, 1978, 9:02 AM CDT (14:02 UTC), 5 km (3 mi) below the surface.

A larger quake followed: M3.5 6 km NNW of Dyersburg, Tennessee. This one was a foreshock.

Ridgely forecastMore in Tennessee

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.7 (mlg), micro
Local time
UTC
1978-07-07 14:02:38 UTC
Depth
5.0 km (3.1 mi), shallow
Epicenter
36.240° N, 89.460° W
Region
Tennessee
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Depth from
From location

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 23 in the 60 days after this one and 10 in the 30 days before it.

After

  1. 1.65 km ESE of Marston, Missouri · 17615 days ago · 5 km deep · 30 km away
  2. 2.06 km SE of Marston, Missouri · 17615 days ago · 6 km deep · 28 km away
  3. 1.73 km SSE of Marston, Missouri · 17614 days ago · 1 km deep · 30 km away
  4. 2.17 km WSW of Dell, Arkansas · 17608 days ago · 10 km deep · 75 km away
  5. 2.63 km ENE of Manila, Arkansas · 17604 days ago · 5 km deep · 72 km away
  6. 1.64 km S of Manila, Arkansas · 17604 days ago · 10 km deep · 77 km away
  7. 2.19 km NW of Tiptonville, Tennessee · 17601 days ago · 10 km deep · 24 km away
  8. 1.67 km S of Hayti Heights, Missouri · 17595 days ago · 5 km deep · 30 km away
  9. 1.52 km NNE of Marston, Missouri · 17593 days ago · 5 km deep · 36 km away
  10. 1.50 km ESE of Ridgely, Tennessee · 17589 days ago · 4 km deep · 3 km away
  11. 1.93 km S of Matthews, Missouri · 17587 days ago · 5 km deep · 56 km away
  12. 1.52 km ENE of Ridgely, Tennessee · 17579 days ago · 4 km deep · 3 km away
  13. 1.63 km S of Tiptonville, Tennessee · 17578 days ago · 5 km deep · 12 km away
  14. 2.111 km SSE of New Madrid, Missouri · 17576 days ago · 5 km deep · 28 km away
  15. 1.85 km NNW of New Madrid, Missouri · 17574 days ago · 14 km deep · 44 km away
  16. 1.74 km NW of Marston, Missouri · 17574 days ago · 13 km deep · 37 km away
  17. 1.55 km SSE of Tiptonville, Tennessee · 17574 days ago · 6 km deep · 10 km away
  18. 1.57 km ENE of Hayward, Missouri · 17572 days ago · 10 km deep · 25 km away
  19. 1.51 km SW of Marston, Missouri · 17569 days ago · 8 km deep · 33 km away
  20. 3.56 km NNW of Dyersburg, Tennessee · 17563 days ago · 4 km deep · 17 km away
  21. 1.65 km NW of Catron, Missouri · 17561 days ago · 5 km deep · 51 km away
  22. 1.55 km NW of Tiptonville, Tennessee · 17560 days ago · 8 km deep · 21 km away
  23. 1.59 km WSW of Tiptonville, Tennessee · 17560 days ago · 9 km deep · 16 km away

Before

  1. 2.13 km SSE of Howardville, Missouri · 17621 days ago · 5 km deep · 35 km away
  2. 1.57 km SSE of New Madrid, Missouri · 17622 days ago · 5 km deep · 32 km away
  3. 1.60 km S of Howardville, Missouri · 17622 days ago · 5 km deep · 38 km away
  4. 1.82 km SW of Cooter, Missouri · 17631 days ago · 11 km deep · 41 km away
  5. 1.53 km S of Caruthersville, Missouri · 17634 days ago · 10 km deep · 19 km away
  6. 1.54 km NNW of Gilt Edge, Tennessee · 17639 days ago · 10 km deep · 80 km away
  7. 1.50 km ENE of Howardville, Missouri · 17642 days ago · 9 km deep · 38 km away
  8. 1.64 km E of Marston, Missouri · 17643 days ago · 10 km deep · 32 km away
  9. 1.66 km E of Steele, Missouri · 17646 days ago · 10 km deep · 32 km away
  10. 1.82 km E of Holland, Missouri · 17647 days ago · 10 km deep · 40 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nm600749. Read Wed, Sep 30, 2026, 9:34 PM UTC.