QuakeIndex

Earthquake · reviewed by a seismologist

M 4.2mw

32km ENE of Ensenada, B.C., MX

· 16 km deep · released about 29 tons of TNT

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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 4.2 (mw)
Depth
16 km below the surface
Felt
679 reports · strongest reported intensity IV
Measured shaking
intensity VI (ShakeMap)
USGS impact alert
green
Tsunami
USGS flagged this event for tsunami evaluation. Follow tsunami.gov for official messages.
Nearest
San Diego County, 127 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2910 days ago

This was a light earthquake. It is usually felt clearly nearby and can rattle windows and dishes, but damage is uncommon. 679 people have reported feeling it to USGS.

How big was it?

This earthquake released about 29 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 5,800× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 260× the energy of this one
  3. Magna, Utah 2020 M 5.7 180× the energy of this one
  4. This earthquake M 4.2 about 29 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 61× more

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 31.9508, -116.2990. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Diego County, CA 127 km (79 mi) SSE 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

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

  1. 2.0 47km ENE of Ensenada, B.C., MX
  2. 1.9 52km SSW of Progreso, B.C., MX
  3. 2.7 70km WSW of Alberto Oviedo Mota, B.C., MX
  4. 1.8 34km ENE of Ensenada, B.C., MX
  5. 2.1 43km SSE of Campo, CA
  6. 2.3 41km ENE of Maneadero, B.C., MX
  7. 2.3 70km WSW of Alberto Oviedo Mota, B.C., MX
  8. 2.9 70km WSW of Alberto Oviedo Mota, B.C., MX
  9. 2.5 71km WSW of Alberto Oviedo Mota, B.C., MX
  10. 2.8 71km WSW of Alberto Oviedo Mota, B.C., MX
  11. 2.3 70km WSW of Alberto Oviedo Mota, B.C., MX
  12. 1.9 71km WSW of Alberto Oviedo Mota, B.C., MX
  13. 2.8 71km WSW of Alberto Oviedo Mota, B.C., MX
  14. 1.7 67km WSW of Alberto Oviedo Mota, B.C., MX
  15. 3.0 34km NE of Ensenada, 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.