QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

9km ESE of Kettleman City, CA

· 30 km deep · released about 450 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kings County 13 kmSan Luis Obispo County 83 kmFresno County 90 kmTulare County 103 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 2.8 (md)
Depth
30 km below the surface
Felt
2 reports · strongest reported intensity III
Nearest
Kings County, 13 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1394 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 2 people have reported feeling it to USGS.

How big was it?

This earthquake released about 450 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 34,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 24,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.1× the energy of this one
  4. This earthquake M 2.8 about 450 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 35.9697, -119.8780. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kings County, CA 13 km (8 mi) SSW of here earthquakes near Kings County
San Luis Obispo County, CA 83 km (51 mi) NE of here earthquakes near San Luis Obispo County
Fresno County, CA 90 km (56 mi) SSW of here earthquakes near Fresno County
Tulare County, CA 103 km (64 mi) WSW of here earthquakes near Tulare County
Kern County, CA 125 km (78 mi) NW of here earthquakes near Kern County
San Benito County, CA 130 km (81 mi) ESE of here earthquakes near San Benito County

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

Aftershocks so far

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

  1. 1.6 10km NE of Coalinga, CA
  2. 2.2 8km NW of Avenal, CA
  3. 2.0 11km NNW of Cholame, CA
  4. 2.0 8km SW of Kettleman City, CA
  5. 1.7 8km SSW of Kettleman City, CA
  6. 2.8 8km SSW of Kettleman City, CA
  7. 1.8 10km SW of Huron, CA
  8. 2.0 9km E of Kettleman City, CA
  9. 1.6 9km W of Huron, CA
  10. 2.2 10km SSE of Kettleman City, CA
  11. 2.5 6km S of Armona, CA
  12. 1.7 30km NW of Buttonwillow, CA
  13. 1.6 28km NW of Buttonwillow, CA
  14. 1.8 30km WNW of Buttonwillow, CA
  15. 1.6 28km NW of Buttonwillow, 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 180 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.