QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

3km E of Pacoima, CA

· 10 km deep · released about 22 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Los Angeles County 14 kmVentura County 69 kmOrange County 86 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
10 km below the surface
Felt
4 reports · strongest reported intensity III
Nearest
Los Angeles County, 14 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1622 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 4 people have reported feeling it to USGS.

How big was it?

This earthquake released about 22 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 5.8 680,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 480,000× the energy of this one
  3. Around the size people start to feel M 3.0 43× the energy of this one
  4. This earthquake M 1.9 about 22 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 34.2608, -118.3898. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Los Angeles County, CA 14 km (9 mi) WNW of here earthquakes near Los Angeles County
Ventura County, CA 69 km (43 mi) E of here earthquakes near Ventura County
Orange County, CA 86 km (54 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

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

  1. 1.8 3km NE of Silver Lake, CA
  2. 1.8 3km E of Malibu, CA
  3. 1.6 6km ESE of Piru, CA
  4. 2.6 1km NE of Canoga Park, CA
  5. 2.9 4km W of Manhattan Beach, CA
  6. 1.7 8km ESE of Santa Clarita, CA
  7. 1.7 1km SSE of Carson, CA
  8. 2.0 5km SSE of Piru, CA
  9. 1.8 2km WNW of Glendora, CA
  10. 1.6 2km ENE of Granada Hills, CA
  11. 1.5 3km SSE of Castaic, CA
  12. 1.7 7km SW of Pearblossom, CA
  13. 1.6 6km SW of Pearblossom, CA
  14. 1.8 2km ESE of Chatsworth, CA
  15. 1.6 0km N of Carson, 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 8,800 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.