QuakeIndex

Earthquake · automatic estimate, may change

M 1.5md

8 km WNW of Huron, CA

· 3.4 km deep · released about 5.9 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kings County 37 kmFresno County 77 kmSan Benito County 92 kmSan Luis Obispo County 95 kmMonterey County 101 kmMadera County 117 kmMerced County 119 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 1.5 (md)
Depth
3.4 km below the surface
Felt
no reports yet
Nearest
Kings County, 37 km ESE
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 576 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 5.9 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,800,000× the energy of this one
  3. Around the size people start to feel M 3.0 160× the energy of this one
  4. This earthquake M 1.5 about 5.9 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.

Where

Epicentre 36.2160, -120.1873. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kings County, CA 37 km (23 mi) WNW of here earthquakes near Kings County
Fresno County, CA 77 km (48 mi) SW of here earthquakes near Fresno County
San Benito County, CA 92 km (57 mi) ESE of here earthquakes near San Benito County
San Luis Obispo County, CA 95 km (59 mi) NNE of here earthquakes near San Luis Obispo County
Monterey County, CA 101 km (63 mi) E of here earthquakes near Monterey County
Madera County, CA 117 km (73 mi) SSW of here earthquakes near Madera County

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

Aftershocks so far

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

  1. 1.9 7 km E of Avenal, CA
  2. 2.2 7 km E of Avenal, CA
  3. 2.0 5 km S of Lemoore, CA
  4. 1.5 12 km NNW of Avenal, CA
  5. 1.5 20 km NNW of Parkfield, CA
  6. 2.1 19 km ESE of Kettleman City, CA
  7. 2.4 23 km NW of Parkfield, CA
  8. 2.3 7 km NW of Parkfield, CA
  9. 2.4 7 km NW of Parkfield, CA
  10. 3.4 7 km NW of Parkfield, CA
  11. 1.6 8 km SE of New Idria, CA
  12. 2.0 8 km SE of New Idria, CA
  13. 1.6 9 km NW of Avenal, CA
  14. 1.8 13 km WSW of Cantua Creek, CA
  15. 2.2 17 km SSW of Kettleman City, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.3 on 2019-12-17 — it released about 14,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

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