QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

0 km NNE of Las Ollas, Puerto Rico

· 51 km deep · released about 11 lb of TNT

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10 km30 km60 km120 km N Juana Díaz Municipio 9 kmCoamo Municipio 10 kmSanta Isabel Municipio 10 kmVillalba Municipio 12 kmSalinas Municipio 18 kmAibonito Municipio 20 kmPonce Municipio 20 kmOrocovis Municipio 20 kmBarranquitas 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
51 km below the surface
Felt
no reports yet
Nearest
Juana Díaz Municipio, 9 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3020 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 11 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 1,400,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 89× the energy of this one
  4. This earthquake M 1.7 about 11 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 18.0375, -66.4216. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Juana Díaz Municipio, PR 9 km (5 mi) ENE of here earthquakes near Juana Díaz Municipio
Coamo Municipio, PR 10 km (6 mi) SW of here earthquakes near Coamo Municipio
Santa Isabel Municipio, PR 10 km (6 mi) NNW of here earthquakes near Santa Isabel Municipio
Villalba Municipio, PR 12 km (7 mi) SSE of here earthquakes near Villalba Municipio
Salinas Municipio, PR 18 km (11 mi) WNW of here earthquakes near Salinas Municipio
Aibonito Municipio, PR 20 km (12 mi) WSW of here earthquakes near Aibonito Municipio

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

Aftershocks so far

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

  1. 1.9 9 km SSE of Lares, Puerto Rico
  2. 2.2 2 km SSW of Tallaboa, Puerto Rico
  3. 1.9 19 km S of Indios, Puerto Rico
  4. 2.1 16 km S of Indios, Puerto Rico
  5. 2.3 21 km SSE of Maria Antonia, Puerto Rico
  6. 1.6 0 km SW of Capitanejo, Puerto Rico
  7. 1.8 4 km S of Caguas, Puerto Rico
  8. 1.6 2 km ENE of Lluveras, Puerto Rico
  9. 1.7 4 km SSE of Indios, Puerto Rico
  10. 1.9 2 km WNW of Guayanilla, Puerto Rico
  11. 2.4 4 km NNE of Orocovis, Puerto Rico
  12. 2.1 11 km SSE of Lares, Puerto Rico
  13. 3.0 10 km SSW of Tallaboa, Puerto Rico
  14. 2.1 4 km NNE of Yauco, Puerto Rico
  15. 2.1 19 km S of Tallaboa, 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.