QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2Md

17 km WNW of Culebra, Puerto Rico

· 108 km deep · released about 1,900 lb of TNT

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10 km30 km60 km120 km N Fajardo Municipio 15 kmCulebra Municipio 16 kmCeiba Municipio 23 kmLuquillo Municipio 28 kmVieques Municipio 28 kmNaguabo Municipio 35 kmRío Grande Municipio 37 kmHumacao Municipio 44 kmCanóvanas Municipio 46 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 3.2 (Md)
Depth
108 km below the surface
Felt
no reports yet
Nearest
Fajardo Municipio, 15 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3538 days ago

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

How big was it?

This earthquake released about 1,900 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 180,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 7,900× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,600× the energy of this one
  4. This earthquake M 3.2 about 1,900 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 2× 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 18.3740, -65.4486. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Fajardo Municipio, PR 15 km (9 mi) E of here earthquakes near Fajardo Municipio
Culebra Municipio, PR 16 km (10 mi) WNW of here earthquakes near Culebra Municipio
Ceiba Municipio, PR 23 km (14 mi) NE of here earthquakes near Ceiba Municipio
Luquillo Municipio, PR 28 km (17 mi) E of here earthquakes near Luquillo Municipio
Vieques Municipio, PR 28 km (17 mi) N of here earthquakes near Vieques Municipio
Naguabo Municipio, PR 35 km (22 mi) ENE of here earthquakes near Naguabo Municipio

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

Aftershocks so far

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

  1. 2.0 10 km SSE of Esperanza, Puerto Rico
  2. 2.4 35 km NE of Luquillo, Puerto Rico
  3. 2.9 39 km NNW of Charlotte Amalie, U.S. Virgin Islands
  4. 1.8 16 km S of Esperanza, Puerto Rico
  5. 2.7 39 km NNE of Luquillo, Puerto Rico
  6. 2.8 26 km SSW of Charlotte Amalie, U.S. Virgin Islands
  7. 2.7 6 km E of Isabel Segunda, Puerto Rico
  8. 3.1 5 km WNW of Charlotte Amalie, U.S. Virgin Islands
  9. 3.1 34 km NNE of Culebra, Puerto Rico
  10. 2.5 7 km SW of Culebra, Puerto Rico
  11. 2.0 11 km WSW of Culebra, Puerto Rico
  12. 2.2 10 km SSE of Daguao, Puerto Rico
  13. 3.3 39 km NNE of Culebra, Puerto Rico
  14. 3.2 37 km NNE of Culebra, Puerto Rico
  15. 2.4 22 km SW of Esperanza, Puerto Rico

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.