QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

6km S of Littlerock, CA

· 8.2 km deep · released about 7.6 lb of TNT

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10 km30 km60 km120 km N Los Angeles County 40 kmOrange County 91 kmVentura County 106 kmKern County 119 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 1.6 (ml)
Depth
8.2 km below the surface
Felt
no reports yet
Nearest
Los Angeles County, 40 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2896 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 7.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 34.4717, -117.9827. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Los Angeles County, CA 40 km (25 mi) NE of here earthquakes near Los Angeles County
Orange County, CA 91 km (56 mi) NNW of here earthquakes near Orange County
Ventura County, CA 106 km (66 mi) E of here earthquakes near Ventura County
Kern County, CA 119 km (74 mi) SE of here earthquakes near Kern 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. 2.3 8km SW of Lytle Creek, CA
  2. 2.8 2km ESE of Pacoima, CA
  3. 2.1 4km NNE of Granada Hills, CA
  4. 1.9 3km ENE of Granada Hills, CA
  5. 1.9 10km S of Agua Dulce, CA
  6. 2.3 6km SSW of Pearblossum, CA
  7. 1.7 7km NNE of San Dimas, CA
  8. 2.3 7km NNE of San Dimas, CA
  9. 1.5 4km WSW of Lytle Creek, CA
  10. 1.5 4km WNW of Lytle Creek, CA
  11. 2.3 4km SE of San Fernando, CA
  12. 1.6 1km SE of San Fernando, CA
  13. 1.5 4km NNW of La Verne, CA
  14. 1.7 4km N of La Verne, CA
  15. 1.6 3km SSE of San Fernando, 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 4.4 on 2018-08-29 — it released about 15,000 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.