QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4ml

7km ENE of El Sauzal, B.C., MX

· 15 km deep · released about 100 lb 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 2.4 (ml)
Depth
15 km below the surface
Felt
1 report · strongest reported intensity II
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2530 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 100 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 5.8 140,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 100,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.1× the energy of this one
  4. This earthquake M 2.4 about 100 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 31.9327, -116.6217. Map © OpenStreetMap contributors.

Aftershocks so far

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

  1. 1.9 37km NE of Ensenada, B.C., MX
  2. 1.8 33km ENE of Maneadero, B.C., MX
  3. 2.1 30km W of El Sauzal, B.C., MX
  4. 1.9 35km NNE of Ensenada, B.C., MX
  5. 2.1 24km NNE of Ensenada, B.C., MX
  6. 2.8 47km ENE of Ensenada, B.C., MX
  7. 1.6 25km ESE of Primo Tapia, B.C., MX
  8. 2.1 12km NW of El Sauzal, B.C., MX
  9. 2.5 13km SSE of Maneadero, B.C., MX
  10. 2.9 15km WNW of El Sauzal, B.C., MX
  11. 2.5 34km E of Ensenada, B.C., MX
  12. 2.6 36km W of El Sauzal, B.C., MX
  13. 2.0 8km WNW of Primo Tapia, B.C., MX
  14. 1.9 33km NE of Ensenada, B.C., MX
  15. 2.9 10km SSW of Primo Tapia, 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 560 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.