QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8ml

24km E of Maneadero, B.C., MX

· 22 km deep · released about 490 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 2.8 (ml)
Depth
22 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 2985 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 490 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 31,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.9× the energy of this one
  4. This earthquake M 2.8 about 490 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 31.7235, -116.3098. Map © OpenStreetMap contributors.

Aftershocks so far

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

  1. 3.0 34km NE of Ensenada, B.C., MX
  2. 3.1 70km ENE of Maneadero, B.C., MX
  3. 2.5 22km ENE of Maneadero, B.C., MX
  4. 2.1 34km ENE of Ensenada, B.C., MX
  5. 2.4 59km E of Maneadero, B.C., MX
  6. 2.1 32km NE of Ensenada, B.C., MX
  7. 2.1 34km ENE of Ensenada, B.C., MX
  8. 1.8 45km ENE of Ensenada, B.C., MX
  9. 2.3 53km ENE of Ensenada, B.C., MX
  10. 2.1 16km ESE of Maneadero, B.C., MX
  11. 2.1 36km NE of Ensenada, B.C., MX
  12. 2.3 71km E of Maneadero, B.C., MX
  13. 2.6 72km WSW of Alberto Oviedo Mota, B.C., MX
  14. 3.2 72km ENE of Maneadero, B.C., MX
  15. 2.6 72km WSW of Alberto Oviedo Mota, 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.