QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

18km S of Maricopa, CA

· 12 km deep · released about 11 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ventura County 65 kmSanta Barbara County 71 kmKern County 78 kmSan Luis Obispo County 110 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
12 km below the surface
Felt
no reports yet
Nearest
Ventura County, 65 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3387 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 11 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 5.7 930,000× the energy of this one
  3. Around the size people start to feel M 3.0 83× the energy of this one
  4. This earthquake M 1.7 about 11 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 34.9007, -119.3982. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ventura County, CA 65 km (40 mi) NNW of here earthquakes near Ventura County
Santa Barbara County, CA 71 km (44 mi) NE of here earthquakes near Santa Barbara County
Kern County, CA 78 km (49 mi) SW of here earthquakes near Kern County
San Luis Obispo County, CA 110 km (68 mi) ESE of here earthquakes near San Luis Obispo County
Los Angeles County, CA 130 km (81 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

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

  1. 1.9 3km NNW of Frazier Park, CA
  2. 1.7 15km SE of Buttonwillow, CA
  3. 1.7 3km SSE of Frazier Park, CA
  4. 1.5 5km WNW of Frazier Park, CA
  5. 1.9 15km N of Pine Mountain Club, CA
  6. 1.9 15km SE of Maricopa, CA
  7. 1.8 14km SE of Buttonwillow, CA
  8. 1.5 8km S of Buttonwillow, CA
  9. 1.6 18km S of Maricopa, CA
  10. 1.9 9km ESE of Maricopa, CA
  11. 1.5 4km W of Lebec, CA
  12. 3.1 4km W of Lebec, CA
  13. 1.5 17km S of Maricopa, CA
  14. 2.5 17km S of Maricopa, CA
  15. 1.6 23km SSW of Frazier Park, 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.