QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

Earthquake near Lemoore, CA

No earthquake was likely felt in Lemoore in the 24 hours to 5:42 am PST (13:42 UTC). The last one was M 3.3, 26 km (16 mi) SSW, at 6:21 am PDT on 4 August 2026, estimated intensity II (weak) in town; 2 felt reports to USGS. Every earthquake near Lemoore

This page: a magnitude 2.1 earthquake was recorded 6 km (4 mi) north-northeast of Lemoore, CA, at 7:55 am PDT on 28 October 2022 (14:55 UTC), 23 km deep.

USGS: 6km NNE of Lemoore, CA

9 km (6 mi) WNW of Hanford, CA · 48 km (30 mi) S of Fresno, CA

7:55 am PDT, Oct 28, 2022 · · 23 km deep · released about 46 lb of TNT

10 km30 km60 km120 km N Kings County 31 kmFresno County 46 kmTulare County 88 kmMadera County 95 km
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
7:55 am PDT on 28 October 2022 ()
Where
6 km (4 mi) north-northeast of Lemoore, CA · earthquakes near Lemoore
Magnitude
M 2.1 (md)
Depth
23 km below the surface
Felt
no reports yet
Nearest
Kings County, 31 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1472 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. In Lemoore, 6 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: Armona, Lucerne, Hanford, Laton, Home Garden, Riverdale.

How big was it?

This earthquake released about 46 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 330,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 230,000× the energy of this one
  3. Around the size people start to feel M 3.0 21× the energy of this one
  4. This earthquake M 2.1 about 46 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 660 times the energy of this one.

Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:

  1. 5.6 8 km SW of Huron, California · 43 km WSW of this epicentre
  2. 5.5 11 km NNE of Coalinga, California · 50 km WSW of this epicentre
  3. 5.5 11 km NE of Coalinga, California · 49 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 36.3510, -119.7565. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kings County, CA 31 km (20 mi) S earthquakes near Kings County
Fresno County, CA 46 km (29 mi) N earthquakes near Fresno County
Tulare County, CA 88 km (55 mi) E earthquakes near Tulare County
Madera County, CA 95 km (59 mi) N earthquakes near Madera County
San Benito County, CA 122 km (76 mi) WNW earthquakes near San Benito County
San Luis Obispo County, CA 124 km (77 mi) SSW earthquakes near San Luis Obispo County

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

Aftershocks so far

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

  1. 1.7 6km NNE of Avenal, CA
  2. 1.8 8km SW of Lemoore Station, CA
  3. 2.2 4km SSW of Armona, CA
  4. 1.9 2km SSW of Lemoore Station, CA
  5. 1.6 13km ESE of Coalinga, CA
  6. 2.1 11km WSW of Huron, CA
  7. 1.5 9km NNW of Avenal, CA
  8. 2.5 11km S of Home Garden, CA
  9. 1.9 10km SE of Cantua Creek, CA
  10. 1.9 6km ESE of Kettleman City, CA
  11. 2.3 12km E of Coalinga, CA
  12. 2.2 12km SW of Huron, CA
  13. 2.2 11km E of Coalinga, CA
  14. 1.7 10km E of Coalinga, CA
  15. 2.7 10km E 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

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.