Earthquake · reviewed by a seismologist
M 1.6ml
Earthquake near Anthony, KS
No earthquake was likely felt in Anthony in the 24 hours to 10:08 am CST (16:08 UTC). The last one was M 3.4, 172 km (107 mi) S, at 5:53 am CST on 7 November 2026, estimated intensity II (weak) in town; 23 felt reports to USGS. Every earthquake near Anthony
This page: a magnitude 1.6 earthquake was recorded 20 km (12 mi) south of Anthony, KS, at 7:00 pm CDT on 18 August 2019 (00:00 UTC), 5.7 km deep.
USGS: 3 km SE of Manchester, Oklahoma
99 km (61 mi) SW of Wichita, KS
- When
- 7:00 pm CDT on 18 August 2019 ()
- Where
- 20 km (12 mi) south of Anthony, KS · earthquakes near Anthony
- Oklahoma today
- every earthquake in Oklahoma in the last 24 hours
- Magnitude
- M 1.6 (ml)
- Depth
- 5.7 km below the surface
- Felt
- no reports yet
- Nearest
- Harper County, 24 km NNW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 2641 days ago
Earthquake alerts for Anthony, KS
Get a notification in this browser when USGS records an earthquake near Anthony, 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 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 8 km (5 mi) from the epicentre. In Anthony, 20 km away, the estimate is intensity II (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.
How big was it?
This earthquake released about 9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 1,700,000× the energy of this one
- Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
- Around the size people start to feel M 3.0 110× the energy of this one
- This earthquake M 1.6 about 9 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
The largest earthquake within 50 km since 2016 was M 4.4 on 2019-05-17 — about 13,000 times the energy of this one.
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 36.9760, -98.0097. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Harper County, KS | 24 km (15 mi) | NNW | earthquakes near Harper County |
| Grant County, OK | 29 km (18 mi) | SE | earthquakes near Grant County |
| Alfalfa County, OK | 39 km (24 mi) | SW | earthquakes near Alfalfa County |
| Sumner County, KS | 54 km (34 mi) | ENE | earthquakes near Sumner County |
| Kingman County, KS | 65 km (41 mi) | N | earthquakes near Kingman County |
| Barber County, KS | 66 km (41 mi) | WNW | earthquakes near Barber County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
57 earthquakes have been recorded within 50 km since this one.
- 1.7 9 km W of Lamont, Oklahoma
- 1.9 10 km W of Lamont, Oklahoma
- 1.6 11 km SW of Hunnewell, Kansas
- 2.6 7 km E of Nescatunga, Oklahoma
- 2.1 7 km E of Nescatunga, Oklahoma
- 1.7 4 km E of Wakita, Oklahoma
- 1.9 10 km ESE of Jefferson, Oklahoma
- 2.2 8 km NNE of Harper, Kansas
- 2.1 9 km ESE of Jefferson, Oklahoma
- 2.3 6 km ESE of Cherokee, Oklahoma
- 1.5 Oklahoma
- 1.9 8 km ESE of Jefferson, Oklahoma
- 2.1 9 km ESE of Jefferson, Oklahoma
- 1.5 4 km SSW of Renfrow, Oklahoma
- 2.2 8 km E of Nescatunga, Oklahoma
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.