QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

Earthquake near Springfield, SD

No earthquake was likely felt in Springfield in the 24 hours to 11:41 pm CST (05:41 UTC). The last one was M 3.7, 294 km (183 mi) NW, at 2:39 pm CDT on 30 May 2024, estimated intensity II (weak) in town; 485 felt reports to USGS. Every earthquake near Springfield

This page: a magnitude 2.5 earthquake was recorded 10 km (6 mi) southeast of Springfield, SD, at 7:54 pm CST on 5 March 2024 (01:54 UTC), 5.0 km deep.

USGS: 6 km SSE of Santee, Nebraska

7:54 pm CST, Mar 5, 2024 · · 5.0 km deep · released about 170 lb of TNT

10 km30 km60 km120 km N Knox County 18 kmBon Homme County 23 kmYankton County 42 kmCedar County 50 kmPierce County 60 kmHutchinson County 61 kmClay County 69 kmAntelope County 70 kmTurner County 79 km
Distance rings around the epicentre, with the nearest towns at their true direction. Not a shaking map — see the USGS ShakeMap for that.
When
7:54 pm CST on 5 March 2024 ()
Where
10 km (6 mi) southeast of Springfield, SD · earthquakes near Springfield
Magnitude
M 2.5 (ml)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Knox County, 18 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 911 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 46 km (29 mi) from the epicentre. In Springfield, 10 km away, the estimate is intensity III (weak). 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.

Earthquakes near other towns within 30 km: Tyndall.

How big was it?

This earthquake released about 170 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 42.7882, -97.8103. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Knox County, NE 18 km (11 mi) SSW earthquakes near Knox County
Bon Homme County, SD 23 km (14 mi) NNW earthquakes near Bon Homme County
Yankton County, SD 42 km (26 mi) NE earthquakes near Yankton County
Cedar County, NE 50 km (31 mi) ESE earthquakes near Cedar County
Pierce County, NE 60 km (37 mi) SSE earthquakes near Pierce County
Hutchinson County, SD 61 km (38 mi) N earthquakes near Hutchinson County

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

Aftershocks so far

No further earthquakes have been recorded within 50 km since this one.

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.