QuakeIndex

Earthquake · reviewed by a seismologist

M 4.0ml

6km W of Alberto Oviedo Mota, B.C., MX

· 19 km deep · released about 15 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Imperial County 91 km
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 4.0 (ml)
Depth
19 km below the surface
Felt
5 reports · strongest reported intensity II
Measured shaking
intensity VI (ShakeMap)
USGS impact alert
green
Nearest
Imperial County, 91 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3394 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 5 people have reported feeling it to USGS.

How big was it?

This earthquake released about 15 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 5.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 12,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 520× the energy of this one
  3. Magna, Utah 2020 M 5.7 370× the energy of this one
  4. This earthquake M 4.0 about 15 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 31× 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 32.2250, -115.2278. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Imperial County, CA 91 km (57 mi) S of here earthquakes near Imperial County

Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.

Aftershocks so far

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

  1. 2.2 8km NNW of Delta, B.C., MX
  2. 1.8 21km SSW of Puebla, B.C., MX
  3. 2.1 14km ESE of Puebla, B.C., MX
  4. 1.8 14km ESE of Puebla, B.C., MX
  5. 2.7 7km NW of Estacion Coahuila, B.C., MX
  6. 3.3 10km NW of Delta, B.C., MX
  7. 2.2 17km W of Delta, B.C., MX
  8. 2.0 8km SSW of Progreso, B.C., MX
  9. 2.2 7km WNW of Alberto Oviedo Mota, B.C., MX
  10. 2.1 2km ESE of Delta, B.C., MX
  11. 1.6 9km S of Progreso, B.C., MX
  12. 3.0 1km SW of Delta, B.C., MX
  13. 2.9 7km NNW of Delta, B.C., MX
  14. 2.1 17km SSE of Progreso, B.C., MX
  15. 1.7 10km S of Progreso, 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.