QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

37 km S of Santa Isabel, Puerto Rico

· 13 km deep · released about 130 lb of TNT

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10 km30 km60 km120 km N Santa Isabel Municipio 36 kmJuana Díaz Municipio 40 kmPonce Municipio 43 kmSalinas Municipio 43 kmPeñuelas Municipio 51 kmGuayama Municipio 51 kmCoamo Municipio 53 kmGuayanilla Municipio 54 kmVillalba Municipio 55 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 2.4 (md)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Santa Isabel Municipio, 36 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3268 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 130 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 120,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 83,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.4× the energy of this one
  4. This earthquake M 2.4 about 130 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 17.6351, -66.4688. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Santa Isabel Municipio, PR 36 km (23 mi) SSW of here earthquakes near Santa Isabel Municipio
Juana Díaz Municipio, PR 40 km (25 mi) S of here earthquakes near Juana Díaz Municipio
Ponce Municipio, PR 43 km (27 mi) SSE of here earthquakes near Ponce Municipio
Salinas Municipio, PR 43 km (27 mi) SSW of here earthquakes near Salinas Municipio
Peñuelas Municipio, PR 51 km (32 mi) SSE of here earthquakes near Peñuelas Municipio
Guayama Municipio, PR 51 km (32 mi) SW of here earthquakes near Guayama Municipio

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

Aftershocks so far

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

  1. 2.7 24 km S of Tallaboa, Puerto Rico
  2. 2.1 3 km SW of Tallaboa, Puerto Rico
  3. 2.2 12 km SSW of Tallaboa, Puerto Rico
  4. 2.5 10 km S of Tallaboa, Puerto Rico
  5. 1.9 17 km SSE of Guánica, Puerto Rico
  6. 2.0 14 km SSE of Maria Antonia, Puerto Rico
  7. 2.1 10 km SSE of Indios, Puerto Rico
  8. 1.6 20 km S of Arroyo, Puerto Rico
  9. 2.5 16 km SSE of Guánica, Puerto Rico
  10. 2.1 3 km SW of Potala Pastillo, Puerto Rico
  11. 1.9 1 km SSW of Guayabal, Puerto Rico
  12. 1.7 13 km S of Indios, Puerto Rico
  13. 2.0 5 km SE of Ponce, Puerto Rico
  14. 2.2 19 km SSE of Tallaboa, Puerto Rico
  15. 2.3 2 km NNW of Potala Pastillo, 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.