QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

12km W of Huron, CA

· 4.7 km deep · released about 5.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kings County 41 kmFresno County 80 kmSan Benito County 87 kmSan Luis Obispo County 94 kmMonterey County 96 kmMerced County 117 kmMadera 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
4.7 km below the surface
Felt
no reports yet
Nearest
Kings County, 41 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2537 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 5.6 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 2,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.6 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 36.2155, -120.2417. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kings County, CA 41 km (26 mi) WNW of here earthquakes near Kings County
Fresno County, CA 80 km (50 mi) SW of here earthquakes near Fresno County
San Benito County, CA 87 km (54 mi) ESE of here earthquakes near San Benito County
San Luis Obispo County, CA 94 km (58 mi) NNE of here earthquakes near San Luis Obispo County
Monterey County, CA 96 km (60 mi) E of here earthquakes near Monterey County
Merced County, CA 117 km (73 mi) SSE of here earthquakes near Merced County

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

Aftershocks so far

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

  1. 4.3 11km NNW of Cholame, CA
  2. 1.9 24km WSW of Coalinga, CA
  3. 2.4 1km NE of New Idria, CA
  4. 2.1 3km NE of New Idria, CA
  5. 1.8 16km NW of Parkfield, CA
  6. 1.9 5km WSW of Huron, CA
  7. 1.5 10km ESE of Coalinga, CA
  8. 1.9 15km NNE of Coalinga, CA
  9. 1.8 9km NW of Parkfield, CA
  10. 1.8 8km E of Kettleman City, CA
  11. 2.7 12km NW of Parkfield, CA
  12. 1.7 12km NW of Parkfield, CA
  13. 2.3 16km NNE of Coalinga, CA
  14. 1.7 14km NNE of Coalinga, CA
  15. 2.5 6km N of Lemoore, 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 4.0 on 2018-11-27 — it released about 5,400 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.