QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

6km W of Fillmore, CA

· 18 km deep · released about 11 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ventura County 14 kmLos Angeles County 70 kmSanta Barbara County 98 kmKern County 108 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
18 km below the surface
Felt
no reports yet
Nearest
Ventura County, 14 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3421 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 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 970,000× the energy of this one
  3. Around the size people start to feel M 3.0 86× 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 34.3957, -118.9830. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ventura County, CA 14 km (9 mi) ENE of here earthquakes near Ventura County
Los Angeles County, CA 70 km (43 mi) WNW of here earthquakes near Los Angeles County
Santa Barbara County, CA 98 km (61 mi) E of here earthquakes near Santa Barbara County
Kern County, CA 108 km (67 mi) SSW of here earthquakes near Kern County
Orange County, CA 137 km (85 mi) NW of here earthquakes near Orange 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. 1.6 12km WNW of Ojai, CA
  2. 1.7 1km NNW of Frazier Park, CA
  3. 1.6 21km N of Fillmore, CA
  4. 1.8 3km NW of Frazier Park, CA
  5. 1.6 6km ESE of Agoura Hills, CA
  6. 1.9 7km WSW of Santa Clarita, CA
  7. 2.4 16km W of Ventura, CA
  8. 2.2 9km NW of Santa Paula, CA
  9. 2.1 4km NNE of Granada Hills, CA
  10. 1.6 1km SE of Malibu Beach, CA
  11. 1.8 7km E of Ojai, CA
  12. 2.4 8km NW of Ojai, CA
  13. 1.5 14km N of Fillmore, CA
  14. 1.9 14km N of Castaic, CA
  15. 1.6 6km E of Ojai, 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 4,300 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.