QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

8km SW of San Lucas, CA

· 11 km deep · released about 100 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Monterey County 28 kmSan Benito County 60 kmSan Luis Obispo County 95 kmKings County 114 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 2.4 (md)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Monterey County, 28 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2934 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 100 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 150,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.4× the energy of this one
  4. This earthquake M 2.4 about 100 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 36.0755, -121.0822. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Monterey County, CA 28 km (17 mi) SE of here earthquakes near Monterey County
San Benito County, CA 60 km (37 mi) S of here earthquakes near San Benito County
San Luis Obispo County, CA 95 km (59 mi) NW of here earthquakes near San Luis Obispo County
Kings County, CA 114 km (71 mi) W of here earthquakes near Kings County
Santa Cruz County, CA 133 km (83 mi) SE of here earthquakes near Santa Cruz 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. 2.1 23km NE of San Ardo, CA
  2. 1.8 22km ENE of San Lucas, CA
  3. 2.2 23km ENE of San Lucas, CA
  4. 1.8 16km NW of Parkfield, CA
  5. 2.3 22km ENE of San Ardo, CA
  6. 1.7 22km NW of Parkfield, CA
  7. 1.5 15km W of Lake Nacimiento, CA
  8. 2.6 13km WSW of Lake Nacimiento, CA
  9. 1.5 7km NNE of Greenfield, CA
  10. 1.6 6km W of New Idria, CA
  11. 2.5 6km W of New Idria, CA
  12. 1.8 7km ENE of San Simeon, CA
  13. 1.6 22km ENE of San Ardo, CA
  14. 1.8 12km SE of Pinnacles, CA
  15. 2.5 21km NW of Parkfield, 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.