QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

7km SSW of Pearblossom, CA

· 10 km deep · released about 62 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Los Angeles County 40 kmOrange County 87 kmVentura County 109 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 2.2 (ml)
Depth
10 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 1586 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 62 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 240,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 170,000× the energy of this one
  3. Around the size people start to feel M 3.0 15× the energy of this one
  4. This earthquake M 2.2 about 62 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 34.4490, -117.9468. 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 87 km (54 mi) N of here earthquakes near Orange County
Ventura County, CA 109 km (68 mi) E of here earthquakes near Ventura County
Kern County, CA 123 km (76 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

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

  1. 1.7 4km NW of Diamond Bar, CA
  2. 1.5 4km NNW of Diamond Bar, CA
  3. 1.7 3km NNW of Vincent, CA
  4. 1.7 8km N of Rancho Cucamonga, CA
  5. 1.5 3km SSE of Duarte, CA
  6. 3.0 6km ESE of Wrightwood, CA
  7. 1.5 14km NE of Glendora, CA
  8. 2.1 9km NW of Adelanto, CA
  9. 1.6 4km SSW of Llano, CA
  10. 1.8 3km NE of Silver Lake, CA
  11. 1.7 3km SW of La Verne, CA
  12. 1.5 6km SSE of Pearblossom, CA
  13. 1.7 8km ESE of Santa Clarita, CA
  14. 1.7 2km SSE of Charter Oak, CA
  15. 1.8 2km WNW of Glendora, 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 3,100 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.