QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

8km ENE of San Diego Country Estates, CA

· 13 km deep · released about 52 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Diego County 7 kmRiverside County 101 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
13 km below the surface
Felt
10 reports · strongest reported intensity III
Nearest
San Diego County, 7 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2792 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 10 people have reported feeling it to USGS.

How big was it?

This earthquake released about 52 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 5.8 290,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 200,000× the energy of this one
  3. Around the size people start to feel M 3.0 18× the energy of this one
  4. This earthquake M 2.2 about 52 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 33.0300, -116.6972. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Diego County, CA 7 km (5 mi) E of here earthquakes near San Diego County
Riverside County, CA 101 km (63 mi) SW of here earthquakes near Riverside County
Orange County, CA 123 km (77 mi) SE of here earthquakes near Orange County

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

Aftershocks so far

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

  1. 2.6 2km SW of Lake Henshaw, CA
  2. 1.9 16km ESE of Julian, CA
  3. 1.6 2km ESE of Lake Henshaw, CA
  4. 1.6 9km NE of Borrego Springs, CA
  5. 1.6 1km SW of Lake Henshaw, CA
  6. 1.9 17km ESE of Julian, CA
  7. 1.8 26km SSW of Ocotillo Wells, CA
  8. 2.2 2km SW of Lake Henshaw, CA
  9. 3.0 2km SW of Lake Henshaw, CA
  10. 1.8 9km S of Borrego Springs, CA
  11. 1.8 17km ESE of Julian, CA
  12. 1.7 7km NE of Borrego Springs, CA
  13. 2.8 5km ESE of Borrego Springs, CA
  14. 1.7 8km NNW of Julian, CA
  15. 2.2 8km NNW of Borrego Springs, 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.