QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

2km ESE of Pacoima, CA

· 7.4 km deep · released about 430 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Los Angeles County 17 kmVentura County 66 kmOrange County 90 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 2.8 (ml)
Depth
7.4 km below the surface
Felt
330 reports · strongest reported intensity III
Nearest
Los Angeles County, 17 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2250 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 330 people have reported feeling it to USGS.

How big was it?

This earthquake released about 430 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 35,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 25,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.2× the energy of this one
  4. This earthquake M 2.8 about 430 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 34.2802, -118.4207. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Los Angeles County, CA 17 km (11 mi) WNW of here earthquakes near Los Angeles County
Ventura County, CA 66 km (41 mi) E of here earthquakes near Ventura County
Orange County, CA 90 km (56 mi) NW of here earthquakes near Orange County
Kern County, CA 122 km (76 mi) SSE of here earthquakes near Kern County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

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

  1. 2.2 9km NW of Malibu, CA
  2. 2.0 12km WSW of Lake Hughes, CA
  3. 2.1 8km NW of Malibu, CA
  4. 2.0 9km NW of Malibu, CA
  5. 1.7 6km NNW of Pacoima, CA
  6. 1.9 13km NNE of Bradbury, CA
  7. 1.6 7km N of Moorpark, CA
  8. 1.6 4km SE of Vincent, CA
  9. 2.1 14km SSE of Malibu Beach, CA
  10. 2.0 0km ESE of San Fernando, CA
  11. 1.7 6km NNW of Pacoima, CA
  12. 1.8 6km NNW of Pacoima, CA
  13. 2.5 5km NNW of Pacoima, CA
  14. 2.0 4km W of East Los Angeles, CA
  15. 2.6 2km NNE 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.