2 km SSW of Marion, Kansas

2021-12-25 23:43 UTC · 5.0 km deep · released about 30 lb of TNT

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: 2021-12-25 23:43 UTC
Magnitude: M 2.0 (mb_lg)
Depth: 5.0 km below the surface
Felt: 5 reports · strongest reported intensity IV
Nearest: Marion County, 7 km WNW
Status: Reviewed by a seismologist

USGS · last changed by USGS 1666 days ago · we first saw it 1666 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 5 people have reported feeling it to USGS.

How big was it?

This earthquake released about 30 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 500,000× the energy of this one
Magna, Utah 2020 M 5.7 350,000× the energy of this one
Around the size people start to feel M 3.0 32× the energy of this one
This earthquake M 2.0 about 30 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

Map loads when it scrolls into view

Epicentre 38.3290, -97.0294. Map © OpenStreetMap contributors.

Nearby places

Place	Distance	Direction
Marion County, KS	7 km (5 mi)	ESE of here	earthquakes near Marion County
Chase County, KS	38 km (24 mi)	W of here	earthquakes near Chase County
Harvey County, KS	47 km (29 mi)	NE of here	earthquakes near Harvey County
Morris County, KS	52 km (32 mi)	SW of here	earthquakes near Morris County
McPherson County, KS	54 km (34 mi)	E of here	earthquakes near McPherson County
Dickinson County, KS	61 km (38 mi)	S of here	earthquakes near Dickinson County

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

Aftershocks so far

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

2.4 5 km NE of Hope, Kansas 09:24 UTC
3.5 5 km NNW of Herington, Kansas 21:33 UTC
2.6 7 km ESE of Marion, Kansas 22:07 UTC
2.7 6 km NE of Cedar Point, Kansas 07:12 UTC
2.4 2 km S of Marion, Kansas 01:02 UTC
2.4 14 km ESE of Lincolnville, Kansas 06:13 UTC
2.5 13 km ENE of Marion, Kansas 22:52 UTC
2.5 14 km SE of Lincolnville, Kansas 04:56 UTC
2.3 14 km N of Cedar Point, Kansas 02:19 UTC
3.2 13 km SE of Lincolnville, Kansas 13:55 UTC
2.5 12 km SE of Lincolnville, Kansas 19:30 UTC
2.4 15 km SE of Lincolnville, Kansas 00:08 UTC
2.6 13 km SE of Lincolnville, Kansas 21:09 UTC
2.5 15 km WNW of Elmdale, Kansas 11:56 UTC
2.3 14 km SE of Lincolnville, Kansas 11:46 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 08:08 UTC. 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.