QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

13 km SE of Triana, Alabama

· 13 km deep · released about 260 lb of TNT

10 km30 km60 km120 km N Morgan County 22 kmMadison County 29 kmMarshall County 35 kmLimestone County 47 kmCullman County 48 kmBlount County 60 kmJackson County 65 kmLawrence County 65 kmLincoln County 70 km
Distance rings around the epicentre, with the nearest towns at their true direction and later quakes as coloured dots. Not a shaking map — see the USGS ShakeMap for that.
When
Magnitude
M 2.6 (md)
Depth
13 km below the surface
Felt
508 reports · strongest reported intensity IV
Nearest
Morgan County, 22 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1571 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 508 people have reported feeling it to USGS.

How big was it?

This earthquake released about 260 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 59,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 42,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.7× the energy of this one
  4. This earthquake M 2.6 about 260 lb of TNT

Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.

Where

Epicentre 34.5127, -86.6157. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Morgan County, AL 22 km (14 mi) ENE of here earthquakes near Morgan County
Madison County, AL 29 km (18 mi) SSW of here earthquakes near Madison County
Marshall County, AL 35 km (22 mi) NW of here earthquakes near Marshall County
Limestone County, AL 47 km (29 mi) SE of here earthquakes near Limestone County
Cullman County, AL 48 km (30 mi) NNE of here earthquakes near Cullman County
Blount County, AL 60 km (37 mi) N of here earthquakes near Blount County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

2 earthquakes have been recorded within 50 km since this one.

  1. 2.5 12 km NNE of Trinity, Alabama
  2. 2.4 5 km SSW of Gurley, Alabama

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.