QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

15km WSW of Pine Mountain Club, CA

· 3.0 km deep · released about 11 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ventura County 52 kmSanta Barbara County 73 kmKern County 80 kmLos Angeles 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 1.7 (ml)
Depth
3.0 km below the surface
Felt
no reports yet
Nearest
Ventura County, 52 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1661 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 34.8007, -119.3037. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ventura County, CA 52 km (32 mi) NNW of here earthquakes near Ventura County
Santa Barbara County, CA 73 km (46 mi) ENE of here earthquakes near Santa Barbara County
Kern County, CA 80 km (50 mi) SW of here earthquakes near Kern County
Los Angeles County, CA 117 km (73 mi) NW of here earthquakes near Los Angeles County
San Luis Obispo County, CA 123 km (76 mi) ESE 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

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

  1. 1.7 12km NW of Grapevine, CA
  2. 2.0 3km W of Lebec, CA
  3. 2.2 2km NNW of Ojai, CA
  4. 1.6 11km SW of Frazier Park, CA
  5. 1.8 10km SW of Frazier Park, CA
  6. 1.6 14km N of Grapevine, CA
  7. 1.6 10km E of Ojai, CA
  8. 1.6 11km NNE of Ojai, CA
  9. 1.9 18km NNW of Fillmore, CA
  10. 2.2 13km SSW of Maricopa, CA
  11. 1.8 22km N of Ojai, CA
  12. 1.8 15km SSW of Lamont, CA
  13. 1.6 11km NE of Maricopa, CA
  14. 1.9 6km NNW of Ojai, CA
  15. 1.6 12km 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 4.1 on 2016-03-12 — it released about 4,100 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.