QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5Md

4 km WSW of Ponce, Puerto Rico

· 6.0 km deep · released about 5.4 lb of TNT

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10 km30 km60 km120 km N Ponce Municipio 6 kmPeñuelas Municipio 8 kmGuayanilla Municipio 14 kmJuana Díaz Municipio 18 kmYauco Municipio 23 kmAdjuntas Municipio 23 kmVillalba Municipio 25 kmJayuya Municipio 25 kmGuánica Municipio 28 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 1.5 (Md)
Depth
6.0 km below the surface
Felt
no reports yet
Nearest
Ponce Municipio, 6 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3653 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 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 17.9965, -66.6632. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ponce Municipio, PR 6 km (4 mi) W of here earthquakes near Ponce Municipio
Peñuelas Municipio, PR 8 km (5 mi) ESE of here earthquakes near Peñuelas Municipio
Guayanilla Municipio, PR 14 km (9 mi) E of here earthquakes near Guayanilla Municipio
Juana Díaz Municipio, PR 18 km (11 mi) W of here earthquakes near Juana Díaz Municipio
Yauco Municipio, PR 23 km (14 mi) ESE of here earthquakes near Yauco Municipio
Adjuntas Municipio, PR 23 km (14 mi) SSE of here earthquakes near Adjuntas Municipio

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

Aftershocks so far

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

  1. 1.9 3 km N of Sabana Eneas, Puerto Rico
  2. 2.0 21 km S of Guánica, Puerto Rico
  3. 2.1 2 km SSE of Lajas, Puerto Rico
  4. 2.3 7 km NE of Sabana Grande, Puerto Rico
  5. 2.2 2 km E of Potala Pastillo, Puerto Rico
  6. 2.2 1 km SW of Salinas, Puerto Rico
  7. 2.4 4 km ESE of Villalba, Puerto Rico
  8. 2.2 5 km NNE of Sabana Grande, Puerto Rico
  9. 1.9 4 km SE of Maricao, Puerto Rico
  10. 1.6 11 km SW of La Parguera, Puerto Rico
  11. 2.5 7 km SW of La Parguera, Puerto Rico
  12. 1.8 6 km SW of La Parguera, Puerto Rico
  13. 2.7 1 km WNW of Potala Pastillo, Puerto Rico
  14. 2.3 21 km S of Guánica, Puerto Rico
  15. 1.8 7 km NNW of Yauco, 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

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