QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7ml

9km S of Progreso, B.C., MX

· 7.4 km deep · released about 9.3 lb of TNT

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10 km30 km60 km120 km N Imperial County 65 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 1.7 (ml)
Depth
7.4 km below the surface
Felt
no reports yet
Nearest
Imperial County, 65 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3518 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 9.3 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
  3. Around the size people start to feel M 3.0 100× the energy of this one
  4. This earthquake M 1.7 about 9.3 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 32.4960, -115.5980. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Imperial County, CA 65 km (40 mi) SSW of here earthquakes near Imperial County
San Diego County, CA 125 km (78 mi) ESE of here earthquakes near San Diego County

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

Aftershocks so far

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

  1. 1.8 15km W of Alberto Oviedo Mota, B.C., MX
  2. 3.3 8km NW of Delta, B.C., MX
  3. 3.2 8km WNW of Delta, B.C., MX
  4. 2.9 7km NW of Delta, B.C., MX
  5. 1.6 17km WNW of Progreso, B.C., MX
  6. 2.2 7km NNW of Delta, B.C., MX
  7. 2.4 15km W of Delta, B.C., MX
  8. 1.6 15km WNW of Progreso, B.C., MX
  9. 1.8 9km SW of Progreso, B.C., MX
  10. 2.1 17km WNW of Progreso, B.C., MX
  11. 1.5 18km WNW of Progreso, B.C., MX
  12. 2.8 17km WNW of Progreso, B.C., MX
  13. 1.7 16km W of Progreso, B.C., MX
  14. 2.2 17km WNW of Progreso, B.C., MX
  15. 1.6 8km SW 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.