QuakeIndex

Earthquake · reviewed by a seismologist

M 3.6mw

26km NE of Maneadero, B.C., MX

· 22 km deep · released about 3.8 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 3.6 (mw)
Depth
22 km below the surface
Felt
28 reports · strongest reported intensity IV
Measured shaking
intensity VI (ShakeMap)
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2951 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 28 people have reported feeling it to USGS.

How big was it?

This earthquake released about 3.8 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.6 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 45,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 2,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 1,400× the energy of this one
  4. This earthquake M 3.6 about 3.8 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 7.9× 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 31.8502, -116.3445. Map © OpenStreetMap contributors.

Aftershocks so far

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

  1. 1.8 34km ENE of Ensenada, B.C., MX
  2. 2.1 43km SSE of Campo, CA
  3. 2.3 41km ENE of Maneadero, B.C., MX
  4. 2.5 71km WSW of Alberto Oviedo Mota, B.C., MX
  5. 1.9 71km WSW of Alberto Oviedo Mota, B.C., MX
  6. 2.8 71km WSW of Alberto Oviedo Mota, B.C., MX
  7. 3.0 34km NE of Ensenada, B.C., MX
  8. 3.1 70km ENE of Maneadero, B.C., MX
  9. 1.6 41km SSE of Tecate, B.C., MX
  10. 2.6 38km SSE of Tecate, B.C., MX
  11. 2.2 32km E of Primo Tapia, B.C., MX
  12. 2.5 22km ENE of Maneadero, B.C., MX
  13. 2.1 34km ENE of Ensenada, B.C., MX
  14. 2.8 71km WSW of Alberto Oviedo Mota, B.C., MX
  15. 2.4 59km E of Maneadero, 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.