QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

22km SW of Maricopa, CA

· 9.5 km deep · released about 5.7 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Santa Barbara County 61 kmVentura County 74 kmKern County 90 kmSan Luis Obispo 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 1.5 (ml)
Depth
9.5 km below the surface
Felt
no reports yet
Nearest
Santa Barbara County, 61 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1381 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 5.7 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 2,600,000× 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 5.7 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 34.9185, -119.5638. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Santa Barbara County, CA 61 km (38 mi) NE of here earthquakes near Santa Barbara County
Ventura County, CA 74 km (46 mi) NNW of here earthquakes near Ventura County
Kern County, CA 90 km (56 mi) WSW of here earthquakes near Kern County
San Luis Obispo County, CA 96 km (60 mi) ESE of here earthquakes near San Luis Obispo County
Los Angeles County, CA 144 km (89 mi) NW of here earthquakes near Los Angeles County

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

Aftershocks so far

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

  1. 2.1 14 km SW of Buttonwillow, CA
  2. 2.3 18 km N of Pine Mountain Club, CA
  3. 2.4 20 km WNW of Grapevine, CA
  4. 1.8 18 km NW of Grapevine, CA
  5. 1.5 18 km WNW of Grapevine, CA
  6. 1.6 9 km E of Pine Mountain Club, CA
  7. 1.7 19 km N of Pine Mountain Club, CA
  8. 1.5 22 km NNE of Ojai, CA
  9. 1.7 9 km WSW of Grapevine, CA
  10. 1.6 27 km WSW of Maricopa, CA
  11. 1.9 20 km N of Pine Mountain Club, CA
  12. 3.0 9 km WSW of Grapevine, CA
  13. 3.0 20 km WSW of Taft, CA
  14. 1.6 11 km SE of Buttonwillow, CA
  15. 1.7 10 km ENE of Los Olivos, 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.