Earthquake · reviewed by a seismologist
M 2.4md
7.1 km ESE of Datto, AR
Yes. A magnitude 2.4 earthquake was recorded 7.1 km ESE of Datto, AR, at 2:42 pm CST on 18 November 2020 (20:42 UTC), 14 km deep.
- When
- Magnitude
- M 2.4 (md)
- Depth
- 14 km below the surface
- Felt
- no reports yet
- Nearest
- Randolph County, 22 km WSW
- Nearest mapped fault
- Western Lowlands liquefaction features, 5 km from its surface trace — near is not the same as on
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2184 days ago
Earthquake alerts for Corning, AR
Get a notification in this browser when USGS records an earthquake near Corning, AR. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth, people at rest would likely notice it out to about 40 km (25 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.
Likely felt in: Doniphan 23 km, intensity II · Pocahontas 23 km, intensity II. Estimated for each town centre; each link is that town's own record.
How big was it?
This earthquake released about 130 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 120,000× the energy of this one
- Magna, Utah 2020 M 5.7 83,000× the energy of this one
- Around the size people start to feel M 3.0 7.4× the energy of this one
- This earthquake M 2.4 about 130 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 36.4168, -90.8043. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Randolph County, AR | 22 km (14 mi) | WSW | earthquakes near Randolph County |
| Ripley County, MO | 27 km (17 mi) | NNW | earthquakes near Ripley County |
| Clay County, AR | 35 km (22 mi) | E | earthquakes near Clay County |
| Greene County, AR | 39 km (24 mi) | SSE | earthquakes near Greene County |
| Butler County, MO | 49 km (30 mi) | NE | earthquakes near Butler County |
| Lawrence County, AR | 50 km (31 mi) | SSW | earthquakes near Lawrence County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
41 earthquakes have been recorded within 50 km since this one.
- 1.7 3 km N of Black Rock, Arkansas
- 2.1 5 km N of Black Rock, Arkansas
- 1.8 3 km N of Black Rock, Arkansas
- 2.1 9 km NNW of Ravenden Springs, Arkansas
- 1.8 2 km W of Imboden, Arkansas
- 2.0 Missouri-Arkansas border region
- 2.0 2 km NNW of Black Rock, Arkansas
- 2.5 4 km SSW of Maynard, Arkansas
- 2.8 0.4 km ESE of Maynard, Arkansas
- 1.9 5 km S of Imboden, Arkansas
- 2.0 3 km SSW of Imboden, Arkansas
- 3.1 4 km SSW of Imboden, Arkansas
- 2.1 18 km WNW of Maynard, Arkansas
- 1.7 Missouri-Arkansas border region
- 1.7 2 km WSW of Imboden, Arkansas
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
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.