QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5ml

68km E of Maneadero, B.C., MX

· 3.9 km deep · released about 160 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N
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 2.5 (ml)
Depth
3.9 km below the surface
Felt
no reports yet
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2115 days ago

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

How big was it?

This earthquake released about 160 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 92,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 65,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.8× the energy of this one
  4. This earthquake M 2.5 about 160 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 31.6238, -115.8547. Map © OpenStreetMap contributors.

Aftershocks so far

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

  1. 3.0 69km SW of Alberto Oviedo Mota, B.C., MX
  2. 2.4 54km E of Maneadero, B.C., MX
  3. 2.7 54 km ENE of San Vicente, Mexico
  4. 2.5 91km ESE of Maneadero, B.C., MX
  5. 2.5 61 km ENE of San Vicente, Mexico
  6. 2.0 45km ENE of Maneadero, B.C., MX
  7. 3.2 31km E of Maneadero, B.C., MX
  8. 2.6 55 km ENE of San Vicente, Mexico
  9. 3.3 54 km ENE of San Vicente, Mexico
  10. 2.5 58 km E of San Vicente, Mexico
  11. 2.1 59km E of Maneadero, B.C., MX
  12. 3.7 57 km ENE of San Vicente, Mexico
  13. 2.5 61 km ENE of San Vicente, Mexico
  14. 2.3 54km SW of Alberto Oviedo Mota, B.C., MX
  15. 1.8 33km ENE 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.

For this area

The largest earthquake within 50 km in our catalogue was M 5.1 on 2020-08-17 — it released about 8,800 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.