QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8ml

49km WSW of Rosarito, B.C., MX

· 9.4 km deep · released about 17 lb of TNT

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10 km30 km60 km120 km N San Diego County 115 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 1.8 (ml)
Depth
9.4 km below the surface
Felt
no reports yet
Nearest
San Diego County, 115 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2201 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 17 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 870,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 620,000× the energy of this one
  3. Around the size people start to feel M 3.0 55× the energy of this one
  4. This earthquake M 1.8 about 17 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 32.2128, -117.5307. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Diego County, CA 115 km (71 mi) SW 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

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

  1. 2.4 19km WSW of Primo Tapia, B.C., MX
  2. 3.6 46km SW of Primo Tapia, B.C., MX
  3. 2.5 24km WSW of Rosarito, B.C., MX
  4. 1.9 23km SW of Rosarito, B.C., MX
  5. 1.7 24km W of Rosarito, B.C., MX
  6. 3.0 45km SW of Primo Tapia, B.C., MX
  7. 2.0 13km NW of Rosarito, B.C., MX
  8. 2.9 50km SW of Rosarito, B.C., MX
  9. 3.6 51km SW of Rosarito, B.C., MX
  10. 2.3 19km SW of Primo Tapia, B.C., MX
  11. 1.7 14km SW of Coronado, CA
  12. 1.7 46km WSW of Coronado, CA
  13. 2.5 61km WSW of Rosarito, B.C., MX
  14. 2.0 14km SW of Coronado, CA
  15. 2.0 42km WSW of Rosarito, 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.