QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7Md

18 km SSE of Tallaboa, Puerto Rico

· 4.0 km deep · released about 340 lb of TNT

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10 km30 km60 km120 km N Ponce Municipio 19 kmPeñuelas Municipio 22 kmGuayanilla Municipio 24 kmJuana Díaz Municipio 25 kmSanta Isabel Municipio 31 kmGuánica Municipio 31 kmYauco Municipio 35 kmVillalba Municipio 38 kmAdjuntas Municipio 40 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
4.0 km below the surface
Felt
no reports yet
Nearest
Ponce Municipio, 19 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3495 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 17.8370, -66.6539. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ponce Municipio, PR 19 km (12 mi) SSW of here earthquakes near Ponce Municipio
Peñuelas Municipio, PR 22 km (14 mi) SSE of here earthquakes near Peñuelas Municipio
Guayanilla Municipio, PR 24 km (15 mi) SE of here earthquakes near Guayanilla Municipio
Juana Díaz Municipio, PR 25 km (15 mi) SW of here earthquakes near Juana Díaz Municipio
Santa Isabel Municipio, PR 31 km (19 mi) WSW of here earthquakes near Santa Isabel Municipio
Guánica Municipio, PR 31 km (19 mi) ESE of here earthquakes near Guánica 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 14 km SSE of Pole Ojea, Puerto Rico
  2. 1.6 6 km ESE of La Parguera, Puerto Rico
  3. 1.9 3 km SSE of Palmarejo, Puerto Rico
  4. 2.2 14 km SSW of Guánica, Puerto Rico
  5. 2.7 14 km S of Tallaboa, Puerto Rico
  6. 2.7 4 km SSW of Playita Cortada, Puerto Rico
  7. 2.5 1 km NE of Salinas, Puerto Rico
  8. 2.0 26 km S of La Parguera, Puerto Rico
  9. 2.0 7 km SE of Ponce, Puerto Rico
  10. 2.0 2 km NE of Yauco, Puerto Rico
  11. 1.8 4 km NNE of Yauco, Puerto Rico
  12. 2.2 9 km ESE of Maricao, Puerto Rico
  13. 2.3 2 km ENE of Potala Pastillo, Puerto Rico
  14. 1.5 5 km SSE of Tallaboa, Puerto Rico
  15. 2.2 8 km SSW of Central Aguirre, 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.