QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3ml

10km SW of Estacion Coahuila, B.C., MX

· 19 km deep · released about 1.4 tons of TNT

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10 km30 km60 km120 km N Imperial County 106 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 3.3 (ml)
Depth
19 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Imperial County, 106 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2621 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 1.4 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 120,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 5,200× the energy of this one
  3. Magna, Utah 2020 M 5.7 3,700× the energy of this one
  4. This earthquake M 3.3 about 1.4 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 3× 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 32.1195, -115.0708. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Imperial County, CA 106 km (66 mi) SSE of here earthquakes near Imperial County
Yuma County, AZ 131 km (81 mi) WSW of here earthquakes near Yuma County

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

Aftershocks so far

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

  1. 2.3 3km W of Alberto Oviedo Mota, B.C., MX
  2. 2.1 14km W of Delta, B.C., MX
  3. 2.1 43km SW of Alberto Oviedo Mota, B.C., MX
  4. 2.0 16 km W of Delta, B.C., MX
  5. 2.4 10km NW of Delta, B.C., MX
  6. 1.8 4km WNW of Delta, B.C., MX
  7. 1.9 9 km NW of Delta, B.C., MX
  8. 2.7 21km SSW of Puebla, B.C., MX
  9. 1.6 16km W of Delta, B.C., MX
  10. 2.9 10km WNW of Alberto Oviedo Mota, B.C., MX
  11. 2.0 13km SE of Puebla, B.C., MX
  12. 2.6 10km SW of Delta, B.C., MX
  13. 2.1 7km SW of Delta, B.C., MX
  14. 2.7 8km WNW of Delta, B.C., MX
  15. 3.0 6km 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.8 on 2018-11-19 — it released about 180 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.