Tennessee earthquakes

M1.6 earthquake 1 km SE of Ridgely, Tennessee

A magnitude 1.6 earthquake struck 1 km SE of Ridgely, Tennessee on Mon, Jul 18, 2011, 12:51 AM CDT (05:51 UTC), 7 km (4 mi) below the surface.

A larger quake followed: M2.1 3 km E of Risco, Missouri. 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
1.6 (Md, duration), micro
Magnitude from
NM
Local time
UTC
2011-07-18 05:51:12 UTC
Depth
6.7 km (4.2 mi), shallow
Epicenter
36.253° N, 89.470° 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.

Location uncertainty
About 0.4 km horizontally, 0.7 km in depth
Magnitude uncertainty
±0.49
Depth from
From location
Station coverage gap
70°
Stations used
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 14 in the 60 days after this one and 8 in the 30 days before it.

After

  1. 2.02 km NW of Marston, Missouri · 5549 days ago · 14 km deep · 35 km away
  2. 1.68 km WSW of Tiptonville, Tennessee · 5549 days ago · 11 km deep · 14 km away
  3. 2.04 km E of Steele, Missouri · 5547 days ago · 6 km deep · 34 km away
  4. 1.51 km SW of Ridgely, Tennessee · 5544 days ago · 8 km deep · 2 km away
  5. 2.08 km SE of Marston, Missouri · 5533 days ago · 8 km deep · 25 km away
  6. 1.84 km NW of New Madrid, Missouri · 5529 days ago · 9 km deep · 42 km away
  7. 2.13 km E of Risco, Missouri · 5524 days ago · 4 km deep · 44 km away
  8. 1.68 km ESE of Marston, Missouri · 5520 days ago · 6 km deep · 28 km away
  9. 1.61 km S of Marston, Missouri · 5516 days ago · 9 km deep · 31 km away
  10. 2.11 km WNW of Cooter, Missouri · 5513 days ago · 8 km deep · 39 km away
  11. 1.65 km WNW of Marston, Missouri · 5512 days ago · 7 km deep · 36 km away
  12. 1.66 km WSW of Tiptonville, Tennessee · 5506 days ago · 9 km deep · 14 km away
  13. 1.97 km NW of Ridgely, Tennessee · 5506 days ago · 10 km deep · 9 km away
  14. 2.03 km SSW of New Madrid, Missouri · 5505 days ago · 5 km deep · 34 km away

Before

  1. 1.82 km NNE of Marston, Missouri · 5556 days ago · 9 km deep · 34 km away
  2. 1.64 km S of New Madrid, Missouri · 5561 days ago · 3 km deep · 33 km away
  3. 1.64 km E of Risco, Missouri · 5570 days ago · 8 km deep · 43 km away
  4. 1.66 km SE of Marston, Missouri · 5572 days ago · 8 km deep · 26 km away
  5. 1.57 km N of New Madrid, Missouri · 5576 days ago · 6 km deep · 45 km away
  6. 1.62 km WNW of Etowah, Arkansas · 5577 days ago · 14 km deep · 91 km away
  7. 1.99 km SW of Caruthersville, Missouri · 5579 days ago · 8 km deep · 27 km away
  8. 1.66 km ESE of Marston, Missouri · 5583 days ago · 8 km deep · 28 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nm608962. Read Fri, Oct 2, 2026, 12:06 AM UTC.