QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

7 km NE of Tallaboa Alta, Puerto Rico

· 17 km deep · released about 10 lb of TNT

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10 km30 km60 km120 km N Peñuelas Municipio 11 kmPonce Municipio 12 kmJayuya Municipio 14 kmAdjuntas Municipio 15 kmGuayanilla Municipio 19 kmVillalba Municipio 19 kmUtuado Municipio 20 kmJuana Díaz Municipio 20 kmYauco Municipio 22 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
17 km below the surface
Felt
no reports yet
Nearest
Peñuelas Municipio, 11 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3089 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 10 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 1,500,000× 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 95× the energy of this one
  4. This earthquake M 1.7 about 10 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 18.0970, -66.6511. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Peñuelas Municipio, PR 11 km (7 mi) NE of here earthquakes near Peñuelas Municipio
Ponce Municipio, PR 12 km (7 mi) NNW of here earthquakes near Ponce Municipio
Jayuya Municipio, PR 14 km (9 mi) SSW of here earthquakes near Jayuya Municipio
Adjuntas Municipio, PR 15 km (9 mi) SE of here earthquakes near Adjuntas Municipio
Guayanilla Municipio, PR 19 km (12 mi) ENE of here earthquakes near Guayanilla Municipio
Villalba Municipio, PR 19 km (12 mi) W of here earthquakes near Villalba Municipio

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

Aftershocks so far

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

  1. 1.5 25 km S of Guánica, Puerto Rico
  2. 1.6 4 km N of Los Llanos, Puerto Rico
  3. 2.0 6 km SSW of Guánica, Puerto Rico
  4. 1.9 7 km S of La Parguera, Puerto Rico
  5. 2.9 5 km ENE of Mayagüez, Puerto Rico
  6. 1.6 1 km SSW of Mariano Colón, Puerto Rico
  7. 1.7 4 km W of La Parguera, Puerto Rico
  8. 1.7 8 km ESE of Maricao, Puerto Rico
  9. 1.8 13 km SSE of Tallaboa, Puerto Rico
  10. 2.2 17 km SSE of La Parguera, 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.