QuakeIndex

Earthquake · automatic estimate, may change

M 2.1md

Earthquake near Huron, CA

No earthquake was likely felt in Huron in the 24 hours to 11:43 pm PST (07:43 UTC). The last one was M 2.2, 10 km (6 mi) SE, at 2:35 am PDT on 16 September 2026, estimated intensity II (weak) in town. Every earthquake near Huron

This page: a magnitude 2.1 earthquake was recorded 17 km (11 mi) west-northwest of Huron, CA, at 10:12 am PST on 10 December 2024 (18:12 UTC), 7.4 km deep. The magnitude and location are an automatic first estimate and may change.

USGS: 17 km NW of Huron, CA

70 km (43 mi) SW of Fresno, CA · 55 km (34 mi) W of Hanford, CA

10:12 am PST, Dec 10, 2024 · · 7.4 km deep · released about 49 lb of TNT

10 km30 km60 km120 km N Kings County 47 kmFresno County 76 kmSan Benito County 82 kmMonterey County 94 kmSan Luis Obispo County 101 kmMerced County 109 kmMadera County 113 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
10:12 am PST on 10 December 2024 ()
Where
17 km (11 mi) west-northwest of Huron, CA · earthquakes near Huron
Magnitude
M 2.1 (md)
Depth
7.4 km below the surface
Felt
no reports yet
Nearest
Kings County, 47 km ESE
Nearest mapped fault
Great Valley thrust fault system, under 1 km from its surface trace — near is not the same as on
Status
Automatic — a machine’s first estimate, which may change

USGS · last changed by USGS · we first saw it 702 days ago

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 16 km (10 mi) from the epicentre. In Huron, 17 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: Coalinga.

How big was it?

This earthquake released about 49 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 5.8 310,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 220,000× the energy of this one
  3. Around the size people start to feel M 3.0 19× the energy of this one
  4. This earthquake M 2.1 about 49 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 4.3 on 2023-08-10 — about 1,600 times the energy of this one.

Before 2016, the USGS record lists 14 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.7 The 1983 Coalinga, California Earthquake · 7 km SW of this epicentre
  2. 6.4 1901 Parkfield, California Earthquake · 38 km SW of this epicentre
  3. 6.1 Northwest of Huron, California · 39 km NW of this epicentre
  4. 5.8 29 km NE of San Lucas, California · 45 km W of this epicentre
  5. 5.6 8 km SW of Huron, California · 18 km SSE 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 36.2830, -120.2638. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Kings County, CA 47 km (29 mi) ESE earthquakes near Kings County
Fresno County, CA 76 km (47 mi) NE earthquakes near Fresno County
San Benito County, CA 82 km (51 mi) WNW earthquakes near San Benito County
Monterey County, CA 94 km (59 mi) W earthquakes near Monterey County
San Luis Obispo County, CA 101 km (63 mi) S earthquakes near San Luis Obispo County
Merced County, CA 109 km (68 mi) NNW earthquakes near Merced 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. 1.5 12 km S of Cantua Creek, CA
  2. 1.5 15 km NW of Parkfield, CA
  3. 2.1 11 km SSE of Cantua Creek, CA
  4. 2.2 20 km NNW of Parkfield, CA
  5. 2.1 15 km SSW of Cantua Creek, CA
  6. 1.9 14 km N of Coalinga, CA
  7. 1.8 1 km NNE of Kettleman City, CA
  8. 1.7 11 km SE of Coalinga, CA
  9. 2.5 22 km W of Coalinga, CA
  10. 1.8 24 km W of Coalinga, CA
  11. 1.6 7 km WSW of Huron, CA
  12. 1.7 24 km W of Coalinga, CA
  13. 1.6 5 km WSW of Huron, CA
  14. 2.7 10 km NNW of Avenal, CA
  15. 2.3 8 km WSW 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

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