Earthquake · reviewed by a seismologist
M 2.5mb_lg
7 km NE of Norwich, KS
Yes. A magnitude 2.5 earthquake was recorded 7 km NE of Norwich, KS, 45 km (28 mi) WSW of Wichita, KS, at 11:24 pm CDT on 29 March 2020 (04:24 UTC), 5.0 km deep. 1 person has reported feeling it to USGS.
45 km (28 mi) WSW of Wichita, KS
- When
- Magnitude
- M 2.5 (mb_lg)
- Depth
- 5.0 km below the surface
- Felt
- 1 report · strongest reported intensity II
- Nearest
- Kingman County, 31 km W
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2342 days ago
Earthquake alerts for Cheney, KS
Get a notification in this browser when USGS records an earthquake near Cheney, KS. 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 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. 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: Cheney 14 km, intensity III · Conway Springs 19 km, intensity III · Haysville 40 km, intensity II · Anthony 44 km, intensity II · Wichita 46 km, intensity II. Estimated for each town centre; each link is that town's own record.
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.
- Mineral, Virginia 2011 M 5.8 89,000× the energy of this one
- Magna, Utah 2020 M 5.7 63,000× the energy of this one
- Around the size people start to feel M 3.0 5.6× the energy of this one
- 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.
Where
Epicentre 37.5053, -97.7994. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Kingman County, KS | 31 km (19 mi) | W | earthquakes near Kingman County |
| Sedgwick County, KS | 36 km (22 mi) | ENE | earthquakes near Sedgwick County |
| Sumner County, KS | 40 km (25 mi) | SE | earthquakes near Sumner County |
| Harper County, KS | 42 km (26 mi) | SW | earthquakes near Harper County |
| Reno County, KS | 55 km (34 mi) | NNW | earthquakes near Reno County |
| Harvey County, KS | 68 km (43 mi) | NNE | earthquakes near Harvey County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
53 earthquakes have been recorded within 50 km since this one.
- 2.4 1 km SE of Danville, Kansas
- 2.6 5 km WSW of Danville, Kansas
- 2.5 6 km SSE of Spivey, Kansas
- 2.4 9 km S of Spivey, Kansas
- 2.6 5 km S of Milton, Kansas
- 2.4 3 km WSW of Harper, Kansas
- 3.3 7 km SW of Danville, Kansas
- 2.1 4 km SSE of Cheney, Kansas
- 2.5 4 km SSE of Pretty Prairie, Kansas
- 2.3 6 km SW of Goddard, Kansas
- 3.2 9 km N of Norwich, Kansas
- 2.6 3 km ENE of Freeport, Kansas
- 2.3 Kansas
- 2.4 Kansas
- 2.4 3 km W of Danville, Kansas
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.