QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6ml

41km WSW of Carlsbad, CA

· -0.1 km deep · released about 210 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Orange County 71 kmSan Diego County 92 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
-0.1 km below the surface
Felt
26 reports · strongest reported intensity III
Nearest
Orange County, 71 km N
Nearest mapped fault
Carslbad Ridge fault, 9 km from its surface trace — near is not the same as on
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3834 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 26 people have reported feeling it to USGS.

How big was it?

This earthquake released about 210 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 72,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 51,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.6× the energy of this one
  4. This earthquake M 2.6 about 210 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 33.0397, -117.7633. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Orange County, CA 71 km (44 mi) S of here earthquakes near Orange County
San Diego County, CA 92 km (57 mi) W of here earthquakes near San Diego County

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

Aftershocks so far

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

  1. 1.6 42km WSW of Carlsbad, CA
  2. 2.3 45km WSW of Carlsbad, CA
  3. 1.6 47km WSW of Carlsbad, CA
  4. 2.0 4km W of Dana Point, CA
  5. 2.1 42km ESE of Avalon, CA
  6. 1.7 46km SSW of Dana Point, CA
  7. 1.8 18km SW of La Jolla, CA
  8. 2.4 28km SSE of Avalon, CA
  9. 3.0 30km SSE of Avalon, CA
  10. 1.7 4km SE of Dana Point, CA
  11. 2.7 34km SSE of Avalon, CA
  12. 2.5 45km SE of Avalon, CA
  13. 1.9 13km SW of Dana Point, CA
  14. 1.9 1km ESE of Dana Point, CA
  15. 1.8 1km E of Dana Point, 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.