QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

4km NNE of Granada Hills, CA

· 11 km deep · released about 40 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Los Angeles County 23 kmVentura County 60 kmOrange County 95 kmKern County 119 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 2.1 (ml)
Depth
11 km below the surface
Felt
4 reports · strongest reported intensity II
Nearest
Los Angeles County, 23 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2776 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 40 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 380,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 270,000× the energy of this one
  3. Around the size people start to feel M 3.0 24× the energy of this one
  4. This earthquake M 2.1 about 40 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 34.2995, -118.4818. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Los Angeles County, CA 23 km (14 mi) WNW of here earthquakes near Los Angeles County
Ventura County, CA 60 km (37 mi) E of here earthquakes near Ventura County
Orange County, CA 95 km (59 mi) NW of here earthquakes near Orange County
Kern County, CA 119 km (74 mi) S of here earthquakes near Kern 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. 1.8 6km NNW of Pacoima, CA
  2. 2.5 5km NNW of Pacoima, CA
  3. 2.0 4km W of East Los Angeles, CA
  4. 2.6 2km NNE of Gardena, CA
  5. 1.7 9km SE of Santa Paula, CA
  6. 1.6 9km S of Malibu Beach, CA
  7. 1.6 9km S of Malibu Beach, CA
  8. 1.9 1km N of Caltech, Pasadena, CA
  9. 1.9 2km SSE of View Park-Windsor Hills, CA
  10. 1.9 7km SSW of Agoura Hills, CA
  11. 1.9 1km N of Huntington Park, CA
  12. 1.8 1km ENE of Gardena, CA
  13. 1.6 15km N of Fillmore, CA
  14. 1.9 2km SSW of La Canada Flintridge, CA
  15. 1.9 17km W of Manhattan Beach, 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.