QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1ml

0km NW of View Park-Windsor Hills, CA

· 9.2 km deep · released about 46 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Los Angeles County 24 kmOrange County 64 kmVentura County 82 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
9.2 km below the surface
Felt
no reports yet
Nearest
Los Angeles County, 24 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3698 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 46 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 5.8 330,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 230,000× the energy of this one
  3. Around the size people start to feel M 3.0 21× the energy of this one
  4. This earthquake M 2.1 about 46 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 33.9977, -118.3513. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Los Angeles County, CA 24 km (15 mi) SSW of here earthquakes near Los Angeles County
Orange County, CA 64 km (40 mi) NW of here earthquakes near Orange County
Ventura County, CA 82 km (51 mi) ESE of here earthquakes near Ventura 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. 2.2 5km NW of Malibu Beach, CA
  2. 1.9 19km S of Malibu Beach, CA
  3. 2.6 7km NNE of Lake View Terrace, CA
  4. 1.7 6km SW of Chino Hills, CA
  5. 1.6 4km N of Yorba Linda, CA
  6. 2.0 3km WSW of Panorama City, CA
  7. 2.3 14km SSE of Malibu Beach, CA
  8. 1.6 4km WSW of Compton, CA
  9. 2.0 2km ESE of Rowland Heights, CA
  10. 1.8 4km NW of Beverly Hills, CA
  11. 1.5 1km SW of La Canada Flintridge, CA
  12. 1.5 3km SE of Brea, CA
  13. 2.3 1km S of Sherman Oaks, CA
  14. 1.6 2km SW of View Park-Windsor Hills, CA
  15. 1.6 2km N of Bradbury, 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.