QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

17km NW of Parkfield, CA

· 4.0 km deep · released about 240 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Kings County 68 kmSan Luis Obispo County 69 kmMonterey County 72 kmSan Benito County 82 kmFresno County 117 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 2.6 (md)
Depth
4.0 km below the surface
Felt
4 reports · strongest reported intensity III
Nearest
Kings County, 68 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3139 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 240 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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 36.0033, -120.5645. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Kings County, CA 68 km (42 mi) W of here earthquakes near Kings County
San Luis Obispo County, CA 69 km (43 mi) N of here earthquakes near San Luis Obispo County
Monterey County, CA 72 km (45 mi) ESE of here earthquakes near Monterey County
San Benito County, CA 82 km (51 mi) SE of here earthquakes near San Benito County
Fresno County, CA 117 km (73 mi) SW of here earthquakes near Fresno County

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

Aftershocks so far

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

  1. 2.5 11km E of Coalinga, CA
  2. 1.6 11km E of Coalinga, CA
  3. 1.7 6km WSW of Huron, CA
  4. 1.7 6km SW of Huron, CA
  5. 2.2 20km SW of New Idria, CA
  6. 1.5 24km ENE of San Lucas, CA
  7. 1.6 22km NNE of San Ardo, CA
  8. 3.1 23km NNE of San Ardo, CA
  9. 1.8 2km SSW of Huron, CA
  10. 2.2 14km NNW of Coalinga, CA
  11. 1.6 13km SW of Huron, CA
  12. 3.0 12km SW of Huron, CA
  13. 1.6 14km NNW of Avenal, CA
  14. 1.7 5km WSW of Huron, CA
  15. 2.9 8km SSW 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.