QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

3km ESE of Armona, CA

· 26 km deep · released about 98 lb of TNT

10 km30 km60 km120 km N Kings County 28 kmFresno County 52 kmTulare County 81 kmMadera County 102 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
Magnitude
M 2.3 (md)
Depth
26 km below the surface
Felt
no reports yet
Nearest
Kings County, 28 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2508 days ago

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

How big was it?

This earthquake released about 98 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 150,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.8× the energy of this one
  4. This earthquake M 2.3 about 98 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 36.2962, -119.6760. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kings County, CA 28 km (17 mi) NNE of here earthquakes near Kings County
Fresno County, CA 52 km (32 mi) S of here earthquakes near Fresno County
Tulare County, CA 81 km (50 mi) W of here earthquakes near Tulare County
Madera County, CA 102 km (63 mi) S of here earthquakes near Madera County
San Luis Obispo County, CA 123 km (76 mi) NE of here earthquakes near San Luis Obispo County
Kern County, CA 136 km (84 mi) NW of here earthquakes near Kern County

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

Aftershocks so far

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

  1. 2.0 7km WSW of Kettleman City, CA
  2. 1.8 8km SE of Huron, CA
  3. 1.8 12km S of Stratford, CA
  4. 2.2 14km ENE of Kettleman City, CA
  5. 2.2 14km S of Stratford, CA
  6. 1.9 13km S of Stratford, CA
  7. 2.0 10km WSW of Huron, CA
  8. 2.0 3km ESE of Kettleman City, CA
  9. 1.9 3km SE of Kettleman City, CA
  10. 1.8 2km SE of Kettleman City, CA
  11. 1.8 2km ESE of Kettleman City, CA
  12. 1.9 9km SSE of Huron, CA
  13. 1.6 5km N of Avenal, CA
  14. 1.7 10km SSW of Huron, CA
  15. 1.8 6km SW of Huron, 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

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