QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

1 km NE of Tallaboa, Puerto Rico

· 14 km deep · released about 9.3 lb of TNT

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10 km30 km60 km120 km N Peñuelas Municipio 3 kmGuayanilla Municipio 10 kmPonce Municipio 10 kmYauco Municipio 19 kmAdjuntas Municipio 20 kmJuana Díaz Municipio 23 kmGuánica Municipio 24 kmJayuya Municipio 26 kmSabana Grande Municipio 27 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
14 km below the surface
Felt
no reports yet
Nearest
Peñuelas Municipio, 3 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2520 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 9.3 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 3.0 100× the energy of this one
  4. This earthquake M 1.7 about 9.3 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 18.0045, -66.7050. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Peñuelas Municipio, PR 3 km (2 mi) SE of here earthquakes near Peñuelas Municipio
Guayanilla Municipio, PR 10 km (6 mi) E of here earthquakes near Guayanilla Municipio
Ponce Municipio, PR 10 km (6 mi) W of here earthquakes near Ponce Municipio
Yauco Municipio, PR 19 km (12 mi) ESE of here earthquakes near Yauco Municipio
Adjuntas Municipio, PR 20 km (13 mi) SSE of here earthquakes near Adjuntas Municipio
Juana Díaz Municipio, PR 23 km (14 mi) W of here earthquakes near Juana Díaz Municipio

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

Aftershocks so far

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

  1. 1.8 13 km SSW of Potala Pastillo, Puerto Rico
  2. 3.0 3 km ESE of Mayagüez, Puerto Rico
  3. 2.5 12 km SSE of Ponce, Puerto Rico
  4. 1.9 0 km SW of Las Marías, Puerto Rico
  5. 1.7 5 km ENE of Hormigueros, Puerto Rico
  6. 1.9 3 km SSW of Las Marías, Puerto Rico
  7. 1.6 1 km NW of Sabana Eneas, Puerto Rico
  8. 1.9 1 km W of Parcelas Peñuelas, Puerto Rico
  9. 2.2 12 km SSE of Ponce, Puerto Rico
  10. 2.2 12 km SSW of Potala Pastillo, Puerto Rico
  11. 2.0 1 km NE of Hormigueros, Puerto Rico
  12. 1.9 12 km SSE of Ponce, Puerto Rico
  13. 2.0 6 km NNE of Sabana Grande, Puerto Rico
  14. 2.8 37 km SSE of Tallaboa, Puerto Rico
  15. 2.1 8 km SW of La Parguera, 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.