QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

12km ESE of Pine Valley, CA

· 12 km deep · released about 220 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Diego County 44 kmImperial County 102 kmRiverside County 112 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 2.6 (ml)
Depth
12 km below the surface
Felt
20 reports · strongest reported intensity II
Nearest
San Diego County, 44 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2876 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 20 people have reported feeling it to USGS.

How big was it?

This earthquake released about 220 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 70,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 50,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.4× the energy of this one
  4. This earthquake M 2.6 about 220 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 32.7803, -116.4072. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Diego County, CA 44 km (27 mi) SE of here earthquakes near San Diego County
Imperial County, CA 102 km (64 mi) WSW of here earthquakes near Imperial County
Riverside County, CA 112 km (70 mi) SSW of here earthquakes near Riverside County

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

Aftershocks so far

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

  1. 1.7 8km SE of Ocotillo Wells, CA
  2. 1.7 22km ESE of Julian, CA
  3. 1.6 26km ENE of Pine Valley, CA
  4. 1.7 16km NW of Ocotillo, CA
  5. 1.8 16km NW of Ocotillo, CA
  6. 2.0 16km ESE of Julian, CA
  7. 1.8 8km ENE of Julian, CA
  8. 1.5 8km ENE of Julian, CA
  9. 1.9 15km ESE of Julian, CA
  10. 3.0 7km ESE of Ocotillo Wells, CA
  11. 1.7 16km ESE of Julian, CA
  12. 1.8 8km ENE of Julian, CA
  13. 2.5 8km ENE of Julian, CA
  14. 2.0 8km ENE of Julian, CA
  15. 2.0 8km ENE of Julian, 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.