QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

10km E of Coalinga, CA

· 11 km deep · released about 14 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kings County 40 kmSan Luis Obispo County 85 kmFresno County 87 kmSan Benito County 92 kmMonterey County 96 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 1.8 (md)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Kings County, 40 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1325 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 14 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 790,000× the energy of this one
  3. Around the size people start to feel M 3.0 70× the energy of this one
  4. This earthquake M 1.8 about 14 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 36.1380, -120.2493. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kings County, CA 40 km (25 mi) W of here earthquakes near Kings County
San Luis Obispo County, CA 85 km (53 mi) NNE of here earthquakes near San Luis Obispo County
Fresno County, CA 87 km (54 mi) SW of here earthquakes near Fresno County
San Benito County, CA 92 km (57 mi) SE of here earthquakes near San Benito County
Monterey County, CA 96 km (60 mi) E of here earthquakes near Monterey County
Merced County, CA 125 km (78 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

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

  1. 2.5 24km ENE of San Ardo, CA
  2. 1.8 10km ESE of Kettleman City, CA
  3. 1.6 16km NW of Parkfield, CA
  4. 1.8 6km N of Avenal, CA
  5. 1.6 2km NNE of New Idria, CA
  6. 1.8 25km E of San Ardo, CA
  7. 1.8 11km S of Kettleman City, CA
  8. 1.6 12km NW of Avenal, CA
  9. 1.6 2km NE of Cholame, CA
  10. 1.5 18km SE of New Idria, CA
  11. 1.7 6km NNE of Avenal, CA
  12. 1.5 4km SW of New Idria, CA
  13. 1.9 10km NW of Parkfield, CA
  14. 1.6 2km N of Cholame, CA
  15. 1.8 8km SW of Lemoore Station, 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 6,000 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.