Earthquake · reviewed by a seismologist
M 2.2md
Earthquake near Armona, CA
No earthquake was likely felt in Armona in the 24 hours to 1:57 am PST (09:57 UTC). The last one was M 3.3, 32 km (20 mi) SW, at 6:21 am PDT on 4 August 2026, estimated intensity II (weak) in town; 2 felt reports to USGS. Every earthquake near Armona
This page: a magnitude 2.2 earthquake was recorded 4 km (3 mi) south-southwest of Armona, CA, at 10:28 pm PDT on 6 May 2023 (05:28 UTC), 18 km deep.
USGS: 4km SSW of Armona, CA
8 km (5 mi) SW of Hanford, CA · 57 km (35 mi) S of Fresno, CA
- When
- 10:28 pm PDT on 6 May 2023 ()
- Where
- 4 km (3 mi) south-southwest of Armona, CA · earthquakes near Armona
- Magnitude
- M 2.2 (md)
- Depth
- 18 km below the surface
- Felt
- no reports yet
- Nearest
- Kings County, 24 km SSW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 1285 days ago
Earthquake alerts for Armona, CA
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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 5 km (3 mi) from the epicentre. In Armona, 4 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.
Earthquakes near other towns within 30 km: Lemoore, Home Garden, Hanford, Lucerne, Stratford, Lemoore Station.
How big was it?
This earthquake released about 58 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 260,000× the energy of this one
- Magna, Utah 2020 M 5.7 180,000× the energy of this one
- Around the size people start to feel M 3.0 16× the energy of this one
- This earthquake M 2.2 about 58 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 4.0 on 2018-11-27 — about 520 times the energy of this one.
Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:
- 5.6 8 km SW of Huron, California · 42 km WSW of this epicentre
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 36.2775, -119.7202. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Kings County, CA | 24 km (15 mi) | SSW | earthquakes near Kings County |
| Fresno County, CA | 54 km (34 mi) | N | earthquakes near Fresno County |
| Tulare County, CA | 84 km (52 mi) | E | earthquakes near Tulare County |
| Madera County, CA | 104 km (64 mi) | N | earthquakes near Madera County |
| San Luis Obispo County, CA | 119 km (74 mi) | SW | earthquakes near San Luis Obispo County |
| Merced County, CA | 136 km (84 mi) | NW | earthquakes near Merced County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
54 earthquakes have been recorded within 50 km since this one.
- 1.5 6 km NW of Kettleman City, CA
- 2.0 1 km WNW of Kettleman City, CA
- 2.6 2 km SSE of Kettleman City, CA
- 1.7 13 km SW of Huron, CA
- 1.7 7 km NW of Avenal, CA
- 1.6 12 km SW of Huron, CA
- 2.5 15 km SW of Corcoran, CA
- 2.3 4 km SW of Home Garden, CA
- 2.3 8 km N of Avenal, CA
- 1.7 11 km SSE of Kettleman City, CA
- 2.7 2 km SE of Armona, CA
- 2.2 10 km N of Huron, CA
- 1.6 10 km NNW of Avenal, CA
- 1.8 10 km WSW of Lanare, CA
- 1.6 12 km NE of Coalinga, CA
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.