QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7ml

45km ENE of Maneadero, B.C., MX

Yes. A magnitude 2.7 earthquake was recorded 45km ENE of Maneadero, B.C., MX, at 2:23 am PST on 20 February 2018 (10:23 UTC), 14 km deep. 1 person has reported feeling it to USGS.

· 14 km deep · released about 360 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 2.7 (ml)
Depth
14 km below the surface
Felt
1 report · strongest reported intensity III
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3187 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 21 km (13 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 360 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 42,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 30,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.6× the energy of this one
  4. This earthquake M 2.7 about 360 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 31.7960, -116.0973. Map © OpenStreetMap contributors.

Aftershocks so far

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

  1. 2.1 36km NE of Ensenada, B.C., MX
  2. 2.3 71km E of Maneadero, B.C., MX
  3. 2.6 72km WSW of Alberto Oviedo Mota, B.C., MX
  4. 3.2 72km ENE of Maneadero, B.C., MX
  5. 2.6 72km WSW of Alberto Oviedo Mota, B.C., MX
  6. 2.3 72km WSW of Alberto Oviedo Mota, B.C., MX
  7. 2.3 70km WSW of Alberto Oviedo Mota, B.C., MX
  8. 2.1 71km WSW of Alberto Oviedo Mota, B.C., MX
  9. 2.3 65km SW of Alberto Oviedo Mota, B.C., MX
  10. 3.0 66km SW of Alberto Oviedo Mota, B.C., MX
  11. 3.1 64km SW of Alberto Oviedo Mota, B.C., MX
  12. 3.1 72km ENE of Maneadero, B.C., MX
  13. 3.3 72km ENE of Maneadero, B.C., MX
  14. 2.8 69km WSW of Alberto Oviedo Mota, B.C., MX
  15. 2.2 70km 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.