QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

1 km S of Capitanejo, Puerto Rico

· 20 km deep · released about 9.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Juana Díaz Municipio 5 kmPonce Municipio 7 kmVillalba Municipio 16 kmSanta Isabel Municipio 17 kmPeñuelas Municipio 20 kmCoamo Municipio 22 kmJayuya Municipio 24 kmOrocovis Municipio 26 kmGuayanilla 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 1.7 (md)
Depth
20 km below the surface
Felt
no reports yet
Nearest
Juana Díaz Municipio, 5 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3079 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 9.6 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 99× the energy of this one
  4. This earthquake M 1.7 about 9.6 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 18.0023, -66.5361. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Juana Díaz Municipio, PR 5 km (3 mi) W of here earthquakes near Juana Díaz Municipio
Ponce Municipio, PR 7 km (5 mi) E of here earthquakes near Ponce Municipio
Villalba Municipio, PR 16 km (10 mi) SSW of here earthquakes near Villalba Municipio
Santa Isabel Municipio, PR 17 km (10 mi) WNW of here earthquakes near Santa Isabel Municipio
Peñuelas Municipio, PR 20 km (13 mi) E of here earthquakes near Peñuelas Municipio
Coamo Municipio, PR 22 km (14 mi) WSW of here earthquakes near Coamo 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. 2.2 Puerto Rico region
  2. 1.9 3 km NNE of Río Cañas Abajo, Puerto Rico
  3. 1.6 2 km W of Potala Pastillo, Puerto Rico
  4. 2.4 8 km SSE of Jauca, Puerto Rico
  5. 1.8 2 km E of Aguilita, Puerto Rico
  6. 1.6 4 km N of Los Llanos, Puerto Rico
  7. 2.0 6 km SSW of Guánica, Puerto Rico
  8. 1.6 1 km SSW of Mariano Colón, Puerto Rico
  9. 1.7 8 km ESE of Maricao, Puerto Rico
  10. 1.8 13 km SSE of Tallaboa, Puerto Rico
  11. 2.1 22 km SSE of Maria Antonia, Puerto Rico
  12. 1.9 10 km SSE of Lares, Puerto Rico
  13. 2.5 3 km NW of Barahona, Puerto Rico
  14. 1.7 8 km S of Potala Pastillo, Puerto Rico
  15. 1.8 8 km S 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.