QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

4km WSW of Compton, CA

· 13 km deep · released about 18 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Los Angeles County 35 kmOrange County 50 kmVentura County 97 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 1.9 (ml)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Los Angeles County, 35 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2984 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 18 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 840,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 600,000× the energy of this one
  3. Around the size people start to feel M 3.0 53× the energy of this one
  4. This earthquake M 1.9 about 18 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 33.8775, -118.2590. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Los Angeles County, CA 35 km (22 mi) S of here earthquakes near Los Angeles County
Orange County, CA 50 km (31 mi) WNW of here earthquakes near Orange County
Ventura County, CA 97 km (60 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

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

  1. 2.1 7km NE of San Pedro, CA
  2. 1.6 1km ENE of Lennox, CA
  3. 1.6 12km SSE of San Pedro, CA
  4. 2.5 2km NE of Villa Park, CA
  5. 1.7 1km ENE of Yorba Linda, CA
  6. 2.3 3km SSE of Charter Oak, CA
  7. 1.6 1km SSE of Placentia, CA
  8. 2.6 3km SSW of Signal Hill, CA
  9. 1.9 2km WSW of Yorba Linda, CA
  10. 1.5 4km SE of Rancho Palos Verdes, CA
  11. 1.6 0km ENE of Universal City, CA
  12. 1.6 22km N of Avalon, CA
  13. 1.6 12km SW of Marina del Rey, CA
  14. 2.9 2km S of Buena Park, CA
  15. 2.0 4km SSW of Baldwin Hills, 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.