QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

3km ESE of Northridge, CA

· 13 km deep · released about 340 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Los Angeles County 22 kmVentura County 60 kmOrange County 91 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 2.7 (ml)
Depth
13 km below the surface
Felt
431 reports · strongest reported intensity III
Measured shaking
intensity IV (ShakeMap)
Nearest
Los Angeles County, 22 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2440 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 431 people have reported feeling it to USGS.

How big was it?

This earthquake released about 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 32,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.8× the energy of this one
  4. This earthquake M 2.7 about 340 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 34.2287, -118.5022. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Los Angeles County, CA 22 km (14 mi) W of here earthquakes near Los Angeles County
Ventura County, CA 60 km (37 mi) ESE of here earthquakes near Ventura County
Orange County, CA 91 km (56 mi) NW of here earthquakes near Orange County

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

Aftershocks so far

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

  1. 1.8 4km SW of MacArthur Park, CA
  2. 2.0 2km SW of Montebello, CA
  3. 1.6 2km N of Inglewood, CA
  4. 2.8 12km S of Malibu, CA
  5. 1.8 6km SW of Calabasas, CA
  6. 1.8 5km SE of Agoura Hills, CA
  7. 2.3 2km NE of Granada Hills, CA
  8. 2.2 3km N of East Los Angeles, CA
  9. 2.4 16km WNW of Malibu, CA
  10. 2.0 1km WNW of Redondo Beach, CA
  11. 2.2 9km SW of Castaic, CA
  12. 2.2 9km NW of Malibu, CA
  13. 2.0 12km WSW of Lake Hughes, CA
  14. 2.1 8km NW of Malibu, CA
  15. 2.0 9km NW of Malibu, 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.