QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

31km E of Primo Tapia, B.C., MX

· 12 km deep · released about 140 lb of TNT

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10 km30 km60 km120 km N San Diego County 90 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 2.4 (ml)
Depth
12 km below the surface
Felt
no reports yet
Nearest
San Diego County, 90 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2896 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 140 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 110,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 78,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.9× the energy of this one
  4. This earthquake M 2.4 about 140 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 32.2253, -116.5883. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Diego County, CA 90 km (56 mi) SSE of here earthquakes near San Diego County
Imperial County, CA 147 km (91 mi) SW of here earthquakes near Imperial County

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

Aftershocks so far

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

  1. 2.1 44km ENE of Ensenada, B.C., MX
  2. 1.8 27 km S of Tecate, B.C., MX
  3. 2.2 21km NE of Ensenada, B.C., MX
  4. 1.6 16km WSW of Tecate, B.C., MX
  5. 2.4 7km ENE of El Sauzal, B.C., MX
  6. 1.7 42km ENE of Ensenada, B.C., MX
  7. 2.7 24km ESE of Primo Tapia, B.C., MX
  8. 1.9 36km E of Ensenada, B.C., MX
  9. 1.6 21km NE of Primo Tapia, B.C., MX
  10. 1.6 36km NE of Ensenada, B.C., MX
  11. 1.7 37km E of Ensenada, B.C., MX
  12. 2.3 36km NE of Ensenada, B.C., MX
  13. 1.8 36km NE of Ensenada, B.C., MX
  14. 2.1 42km ENE of Ensenada, B.C., MX
  15. 2.2 38km 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.2 on 2018-07-25 — it released about 420 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.