QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

25 km SW of Maricopa, CA

· 9.3 km deep · released about 12 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Santa Barbara County 57 kmVentura County 75 kmKern County 93 kmSan Luis Obispo County 94 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 1.7 (ml)
Depth
9.3 km below the surface
Felt
no reports yet
Nearest
Santa Barbara County, 57 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 393 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 12 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 900,000× the energy of this one
  3. Around the size people start to feel M 3.0 80× the energy of this one
  4. This earthquake M 1.7 about 12 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 34.9083, -119.6032. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Santa Barbara County, CA 57 km (36 mi) NE of here earthquakes near Santa Barbara County
Ventura County, CA 75 km (46 mi) NW of here earthquakes near Ventura County
Kern County, CA 93 km (58 mi) WSW of here earthquakes near Kern County
San Luis Obispo County, CA 94 km (58 mi) SE of here earthquakes near San Luis Obispo 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. 1.5 8 km W of Pine Mountain Club, CA
  2. 1.6 7 km W of Pine Mountain Club, CA
  3. 1.6 18 km NNW of Pine Mountain Club, CA
  4. 1.8 25 km SW of Maricopa, CA
  5. 2.0 20 km NW of Grapevine, CA
  6. 2.0 8 km W of Pine Mountain Club, CA
  7. 1.5 14 km SSW of Maricopa, CA
  8. 1.5 20 km NW of Grapevine, CA
  9. 2.0 14 km SSW of Maricopa, CA
  10. 1.6 17 km SSW of Pine Mountain Club, CA
  11. 1.7 24 km SW of Lamont, CA
  12. 1.6 25 km NW of Grapevine, CA
  13. 2.2 21 km WNW of Grapevine, CA
  14. 2.7 20 km N of Pine Mountain Club, CA
  15. 1.6 23 km NW of Grapevine, 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 4.6 on 2024-08-07 — it released about 20,000 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.