QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7Md

1 km SSE of Ponce, Puerto Rico

· 18 km deep · released about 340 lb of TNT

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10 km30 km60 km120 km N Ponce Municipio 1 kmPeñuelas Municipio 12 kmJuana Díaz Municipio 14 kmGuayanilla Municipio 19 kmVillalba Municipio 21 kmJayuya Municipio 24 kmAdjuntas Municipio 25 kmSanta Isabel Municipio 25 kmYauco 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
18 km below the surface
Felt
no reports yet
Nearest
Ponce Municipio, 1 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3511 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 18.0016, -66.6190. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ponce Municipio, PR 1 km (1 mi) W of here earthquakes near Ponce Municipio
Peñuelas Municipio, PR 12 km (7 mi) ESE of here earthquakes near Peñuelas Municipio
Juana Díaz Municipio, PR 14 km (8 mi) W of here earthquakes near Juana Díaz Municipio
Guayanilla Municipio, PR 19 km (12 mi) E of here earthquakes near Guayanilla Municipio
Villalba Municipio, PR 21 km (13 mi) SW of here earthquakes near Villalba Municipio
Jayuya Municipio, PR 24 km (15 mi) S of here earthquakes near Jayuya 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. 2.1 6 km ENE of La Parguera, Puerto Rico
  2. 2.4 5 km NNE of San Germán, Puerto Rico
  3. 2.0 26 km S of Guánica, Puerto Rico
  4. 2.2 3 km S of Coamo, Puerto Rico
  5. 2.0 2 km SSE of Magas Arriba, Puerto Rico
  6. 1.9 15 km S of Guánica, Puerto Rico
  7. 2.1 5 km NNE of Sabana Eneas, Puerto Rico
  8. 2.1 0 km N of Pastos, Puerto Rico
  9. 2.5 18 km S of Tallaboa, Puerto Rico
  10. 1.5 0 km E of San Germán, Puerto Rico
  11. 2.4 0 km WNW of Mariano Colón, Puerto Rico
  12. 1.8 2 km E of Sabana Grande, Puerto Rico
  13. 2.3 8 km S of Indios, Puerto Rico
  14. 2.1 3 km SE of Maricao, Puerto Rico
  15. 1.9 5 km N of San Germán, 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.