QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

1km SE of Sylmar, CA

· 10 km deep · released about 7.8 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Los Angeles County 20 kmVentura County 64 kmOrange County 93 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
10 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Los Angeles County, 20 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1782 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 7.8 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 1,900,000× 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 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 7.8 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 34.3030, -118.4428. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Los Angeles County, CA 20 km (13 mi) NW of here earthquakes near Los Angeles County
Ventura County, CA 64 km (40 mi) E of here earthquakes near Ventura County
Orange County, CA 93 km (58 mi) NW of here earthquakes near Orange County
Kern County, CA 119 km (74 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

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

  1. 1.9 3km E of Pacoima, CA
  2. 2.2 7km NNE of Malibu, CA
  3. 1.6 1km NNE of Hollywood, CA
  4. 1.5 0km SSE of Hollywood, CA
  5. 2.1 0km WSW of View Park-Windsor Hills, CA
  6. 1.7 4km SE of Las Flores, CA
  7. 2.3 3km ENE of Marina del Rey, CA
  8. 1.5 13km WSW of Lake Hughes, CA
  9. 1.9 13km NNE of Piru, CA
  10. 1.8 4km N of Topanga, CA
  11. 2.6 1km ENE of San Fernando, CA
  12. 1.7 12km NNW of Piru, CA
  13. 1.9 17km N of Piru, CA
  14. 2.2 11km NNE of Lake View Terrace, CA
  15. 1.6 15km N of Piru, 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 25,000 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.