QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7Md

1 km WNW of Potala Pastillo, Puerto Rico

· 12 km deep · released about 340 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Juana Díaz Municipio 2 kmPonce Municipio 10 kmSanta Isabel Municipio 14 kmVillalba Municipio 16 kmCoamo Municipio 20 kmPeñuelas Municipio 23 kmJayuya Municipio 25 kmOrocovis Municipio 26 kmSalinas 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 2.7 (Md)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Juana Díaz Municipio, 2 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3627 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 32,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.8× the energy of this one
  4. This earthquake M 2.7 about 340 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 17.9950, -66.5128. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Juana Díaz Municipio, PR 2 km (1 mi) W of here earthquakes near Juana Díaz Municipio
Ponce Municipio, PR 10 km (6 mi) E of here earthquakes near Ponce Municipio
Santa Isabel Municipio, PR 14 km (9 mi) WNW of here earthquakes near Santa Isabel Municipio
Villalba Municipio, PR 16 km (10 mi) SSW of here earthquakes near Villalba Municipio
Coamo Municipio, PR 20 km (13 mi) SW of here earthquakes near Coamo Municipio
Peñuelas Municipio, PR 23 km (14 mi) E of here earthquakes near Peñuelas Municipio

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

Aftershocks so far

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

  1. 2.2 3 km S of Coamo, Puerto Rico
  2. 2.0 2 km SSE of Magas Arriba, Puerto Rico
  3. 1.9 15 km S of Guánica, Puerto Rico
  4. 2.1 0 km N of Pastos, Puerto Rico
  5. 2.5 18 km S of Tallaboa, Puerto Rico
  6. 2.4 0 km WNW of Mariano Colón, Puerto Rico
  7. 1.8 2 km E of Sabana Grande, Puerto Rico
  8. 2.3 8 km S of Indios, Puerto Rico
  9. 2.7 18 km SSE of Tallaboa, Puerto Rico
  10. 2.1 2 km NE of Guayabal, Puerto Rico
  11. 2.9 5 km NNE of Orocovis, Puerto Rico
  12. 2.3 13 km SSW of Guánica, Puerto Rico
  13. 1.8 3 km ESE of Cayey, Puerto Rico
  14. 1.9 12 km SSE of Lares, Puerto Rico
  15. 2.7 6 km NNW of Santo Domingo, 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

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