QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6ml

13km S of Primo Tapia, B.C., MX

· 16 km deep · released about 6.6 lb of TNT

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10 km30 km60 km120 km N San Diego County 103 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 1.6 (ml)
Depth
16 km below the surface
Felt
no reports yet
Nearest
San Diego County, 103 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2397 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 6.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.6 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 32.1055, -116.9027. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Diego County, CA 103 km (64 mi) S 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

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

  1. 1.9 36km NNE of El Sauzal, B.C., MX
  2. 1.7 24km W of Rosarito, B.C., MX
  3. 1.6 32km E of Primo Tapia, B.C., MX
  4. 2.6 41km W of El Sauzal, B.C., MX
  5. 2.6 10km SE of Tijuana, B.C., MX
  6. 2.0 36km NNE of Ensenada, B.C., MX
  7. 1.7 20km NNE of Primo Tapia, B.C., MX
  8. 1.7 21km NNE of Primo Tapia, B.C., MX
  9. 1.6 21km NNE of Primo Tapia, B.C., MX
  10. 2.1 22km E of Primo Tapia, B.C., MX
  11. 3.2 28km W of El Sauzal, B.C., MX
  12. 3.0 45km SW of Primo Tapia, B.C., MX
  13. 1.9 24km ESE of Primo Tapia, B.C., MX
  14. 2.0 13km NW of Rosarito, B.C., MX
  15. 1.9 24km N of El Sauzal, B.C., MX

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.