QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

4 km SSE of Indios, Puerto Rico

· 14 km deep · released about 9.6 lb of TNT

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10 km30 km60 km120 km N Guayanilla Municipio 6 kmPeñuelas Municipio 11 kmGuánica Municipio 13 kmYauco Municipio 16 kmSabana Grande Municipio 21 kmPonce Municipio 21 kmLajas Municipio 25 kmAdjuntas Municipio 26 kmMaricao 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
14 km below the surface
Felt
no reports yet
Nearest
Guayanilla Municipio, 6 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2989 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 17.9558, -66.8030. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Guayanilla Municipio, PR 6 km (3 mi) S of here earthquakes near Guayanilla Municipio
Peñuelas Municipio, PR 11 km (7 mi) SW of here earthquakes near Peñuelas Municipio
Guánica Municipio, PR 13 km (8 mi) E of here earthquakes near Guánica Municipio
Yauco Municipio, PR 16 km (10 mi) SSE of here earthquakes near Yauco Municipio
Sabana Grande Municipio, PR 21 km (13 mi) SE of here earthquakes near Sabana Grande Municipio
Ponce Municipio, PR 21 km (13 mi) WSW of here earthquakes near Ponce Municipio

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

Aftershocks so far

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

  1. 1.8 7 km W of Puerto Real, Puerto Rico
  2. 2.0 4 km WNW of Puerto Real, Puerto Rico
  3. 1.7 6 km SSE of Adjuntas, Puerto Rico
  4. 1.6 12 km S of La Parguera, Puerto Rico
  5. 1.7 2 km SE of Cabo Rojo, Puerto Rico
  6. 2.3 6 km SW of Las Marías, Puerto Rico
  7. 2.3 4 km NNE of La Parguera, Puerto Rico
  8. 1.9 7 km SSE of Ponce, Puerto Rico
  9. 1.8 4 km SSW of Guánica, Puerto Rico
  10. 2.1 4 km NNW of Santo Domingo, Puerto Rico
  11. 1.8 3 km SSE of Mayagüez, Puerto Rico
  12. 1.8 6 km W of Puerto Real, Puerto Rico
  13. 1.5 3 km NNW of Sabana Grande, Puerto Rico
  14. 1.8 7 km SSW of Guánica, Puerto Rico
  15. 1.6 4 km SSW of Palmarejo, 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.