QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5Md

5 km SSE of Tallaboa, Puerto Rico

· 9.0 km deep · released about 5.4 lb of TNT

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10 km30 km60 km120 km N Peñuelas Municipio 9 kmPonce Municipio 12 kmGuayanilla Municipio 12 kmYauco Municipio 23 kmJuana Díaz Municipio 23 kmGuánica Municipio 23 kmAdjuntas Municipio 27 kmSabana Grande Municipio 30 kmVillalba Municipio 32 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
9.0 km below the surface
Felt
no reports yet
Nearest
Peñuelas Municipio, 9 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3541 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 17.9468, -66.7014. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Peñuelas Municipio, PR 9 km (6 mi) SSE of here earthquakes near Peñuelas Municipio
Ponce Municipio, PR 12 km (7 mi) WSW of here earthquakes near Ponce Municipio
Guayanilla Municipio, PR 12 km (8 mi) ESE of here earthquakes near Guayanilla Municipio
Yauco Municipio, PR 23 km (14 mi) SE of here earthquakes near Yauco Municipio
Juana Díaz Municipio, PR 23 km (14 mi) WSW of here earthquakes near Juana Díaz Municipio
Guánica Municipio, PR 23 km (15 mi) E of here earthquakes near Guánica Municipio

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

Aftershocks so far

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

  1. 2.3 5 km NNE of San Germán, Puerto Rico
  2. 2.7 8 km WNW of Maricao, Puerto Rico
  3. 2.2 0 km W of Luis Llorens Torres, Puerto Rico
  4. 2.7 1 km ENE of Magas Arriba, Puerto Rico
  5. 1.7 9 km S of Ponce, Puerto Rico
  6. 2.7 5 km E of Adjuntas, Puerto Rico
  7. 1.9 12 km SSW of La Parguera, Puerto Rico
  8. 2.9 4 km W of Maricao, Puerto Rico
  9. 1.8 6 km WNW of Coto Laurel, Puerto Rico
  10. 2.2 2 km SSW of Tallaboa, Puerto Rico
  11. 2.6 5 km NE of San Germán, Puerto Rico
  12. 2.0 12 km S of La Parguera, Puerto Rico
  13. 2.2 15 km SSW of La Parguera, Puerto Rico
  14. 2.0 10 km ESE of Maricao, Puerto Rico
  15. 2.7 18 km S of Indios, 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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