QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

0km SSW of View Park-Windsor Hills, CA

· 9.8 km deep · released about 180 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 83 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 2.5 (ml)
Depth
9.8 km below the surface
Felt
97 reports · strongest reported intensity IV
Nearest
Los Angeles County, 24 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1336 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 97 people have reported feeling it to USGS.

How big was it?

This earthquake released about 180 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 83,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 59,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.2× the energy of this one
  4. This earthquake M 2.5 about 180 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 33.9923, -118.3508. 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 83 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

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

  1. 2.1 1km NW of Hermosa Beach, CA
  2. 1.7 1km NNE of Carson, CA
  3. 1.8 10km E of Santa Clarita, CA
  4. 1.7 9km SSE of Malibu Beach, CA
  5. 1.9 4km E of View Park-Windsor Hills, CA
  6. 1.6 5km NW of Florence-Graham, CA
  7. 2.5 17km WSW of El Segundo, CA
  8. 1.5 6km SSW of Malibu, CA
  9. 1.5 2km ENE of Carson, CA
  10. 1.8 0km NE of Lennox, CA
  11. 1.6 1km WSW of Chatsworth, CA
  12. 1.8 11km E of Santa Clarita, CA
  13. 1.8 3km SE of Highland Park, CA
  14. 2.4 16km S of Malibu Beach, CA
  15. 1.8 1km WNW of Gardena, 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 4.5 on 2020-09-19 — it released about 1,100 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.