QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5ml

6km W of Moorpark, CA

· 1.1 km deep · released about 5.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ventura County 19 kmLos Angeles County 64 kmSanta Barbara County 104 kmKern County 120 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 1.5 (ml)
Depth
1.1 km below the surface
Felt
no reports yet
Nearest
Ventura County, 19 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3181 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 5.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,900,000× the energy of this one
  3. Around the size people start to feel M 3.0 170× the energy of this one
  4. This earthquake M 1.5 about 5.6 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 34.2832, -118.9472. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ventura County, CA 19 km (12 mi) ESE of here earthquakes near Ventura County
Los Angeles County, CA 64 km (40 mi) W of here earthquakes near Los Angeles County
Santa Barbara County, CA 104 km (65 mi) ESE of here earthquakes near Santa Barbara County
Kern County, CA 120 km (75 mi) S of here earthquakes near Kern County
Orange County, CA 127 km (79 mi) WNW of here earthquakes near Orange 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 11km SW of Westlake Village, CA
  2. 1.9 3km NE of Chatsworth, CA
  3. 2.1 12km WNW of Malibu, CA
  4. 1.6 3km N of Pacoima, CA
  5. 1.8 7km WNW of Castaic, CA
  6. 2.0 26km S of Port Hueneme, CA
  7. 2.3 26km S of Port Hueneme, CA
  8. 2.5 9km WNW of Malibu, CA
  9. 2.6 21km S of Port Hueneme, CA
  10. 1.9 1km SW of Chatsworth, CA
  11. 1.6 8km ESE of Carpinteria, CA
  12. 2.1 20km WSW of Ventura, CA
  13. 1.7 3km E of Granada Hills, CA
  14. 2.3 8km SW of Valencia, CA
  15. 1.7 8km SW of Valencia, 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 8,500 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.