QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2ml

54km E of Maneadero, B.C., MX

Yes. A magnitude 2.2 earthquake was recorded 54km E of Maneadero, B.C., MX, at 5:46 am PDT on 8 July 2018 (12:46 UTC), 7.7 km deep.

· 7.7 km deep · released about 58 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 2.2 (ml)
Depth
7.7 km below the surface
Felt
no reports yet
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3032 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 17 km (11 mi) from the epicentre. Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 58 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 260,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 58 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 31.6213, -116.0018. Map © OpenStreetMap contributors.

Aftershocks so far

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

  1. 2.3 70km WSW of Alberto Oviedo Mota, B.C., MX
  2. 2.9 70km WSW of Alberto Oviedo Mota, B.C., MX
  3. 2.5 71km WSW of Alberto Oviedo Mota, B.C., MX
  4. 2.8 71km WSW of Alberto Oviedo Mota, B.C., MX
  5. 2.3 70km WSW of Alberto Oviedo Mota, B.C., MX
  6. 1.9 71km WSW of Alberto Oviedo Mota, B.C., MX
  7. 2.8 71km WSW of Alberto Oviedo Mota, B.C., MX
  8. 1.7 67km WSW of Alberto Oviedo Mota, B.C., MX
  9. 2.0 58km SW of Alberto Oviedo Mota, B.C., MX
  10. 2.4 80km SE of Maneadero, B.C., MX
  11. 1.9 74km ESE of Maneadero, B.C., MX
  12. 3.1 70km ENE of Maneadero, B.C., MX
  13. 2.0 71km WSW of Alberto Oviedo Mota, B.C., MX
  14. 1.7 60km WSW of Alberto Oviedo Mota, B.C., MX
  15. 2.9 86km SSW 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

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