QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2ml

20km NW of Ojai, CA

· 0.6 km deep · released about 1,800 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ventura County 34 kmSanta Barbara County 60 kmKern County 104 kmLos Angeles County 112 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 3.2 (ml)
Depth
0.6 km below the surface
Felt
48 reports · strongest reported intensity III
Nearest
Ventura County, 34 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1690 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 48 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,800 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 190,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 8,500× the energy of this one
  3. Magna, Utah 2020 M 5.7 6,000× the energy of this one
  4. This earthquake M 3.2 about 1,800 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.9× more

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 34.5803, -119.3893. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ventura County, CA 34 km (21 mi) NW of here earthquakes near Ventura County
Santa Barbara County, CA 60 km (37 mi) E of here earthquakes near Santa Barbara County
Kern County, CA 104 km (65 mi) SW of here earthquakes near Kern County
Los Angeles County, CA 112 km (70 mi) WNW of here earthquakes near Los Angeles County
San Luis Obispo County, CA 132 km (82 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

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

  1. 1.8 5km W of Ojai, CA
  2. 1.9 5km WSW of Santa Paula, CA
  3. 1.9 5km WSW of Santa Paula, CA
  4. 1.9 6km WSW of Santa Paula, CA
  5. 2.1 6km WSW of Santa Paula, CA
  6. 1.8 4km WSW of Ojai, CA
  7. 2.0 21km N of Fillmore, CA
  8. 1.9 8km NNW of Ventura, CA
  9. 1.6 17km S of Carpinteria, CA
  10. 1.7 17km SSE of Carpinteria, CA
  11. 1.6 7km W of Ojai, CA
  12. 2.2 3km NNE of Camarillo, CA
  13. 1.5 6km WSW of Ojai, CA
  14. 2.0 7km W of Ojai, CA
  15. 2.0 6km WSW 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 27 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.