QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0ml

10km SE of Ocotillo Wells, CA

· 14 km deep · released about 1,100 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Imperial County 66 kmSan Diego County 67 kmRiverside County 74 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 3.0 (ml)
Depth
14 km below the surface
Felt
8 reports · strongest reported intensity III
Nearest
Imperial County, 66 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3471 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 8 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,100 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 320,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 14,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 10,000× the energy of this one
  4. This earthquake M 3.0 about 1,100 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 33.0683, -116.0645. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Imperial County, CA 66 km (41 mi) W of here earthquakes near Imperial County
San Diego County, CA 67 km (41 mi) E of here earthquakes near San Diego County
Riverside County, CA 74 km (46 mi) S of here earthquakes near Riverside 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. 1.7 12km N of Borrego Springs, CA
  2. 1.6 7km WSW of Niland, CA
  3. 1.5 7km WSW of Niland, CA
  4. 1.8 7km NNE of Borrego Springs, CA
  5. 1.7 23km ESE of Ocotillo Wells, CA
  6. 2.0 26km ENE of Pine Valley, CA
  7. 1.6 8km SW of Niland, CA
  8. 1.8 23km NNW of Ocotillo, CA
  9. 2.0 17km SE of Julian, CA
  10. 2.0 27km ENE of Pine Valley, CA
  11. 2.0 26km NW of Ocotillo, CA
  12. 1.7 24km NW of Ocotillo, CA
  13. 1.6 3km WSW of Brawley, CA
  14. 1.5 16km NNW of Borrego Springs, CA
  15. 1.7 11km NW of Calipatria, 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 4.3 on 2016-09-27 — it released about 89 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.