QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

24 km SSE of Tallaboa, Puerto Rico

· 25 km deep · released about 47 lb of TNT

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10 km30 km60 km120 km N Ponce Municipio 24 kmPeñuelas Municipio 28 kmJuana Díaz Municipio 29 kmGuayanilla Municipio 29 kmSanta Isabel Municipio 33 kmGuánica Municipio 34 kmYauco Municipio 40 kmVillalba Municipio 43 kmAdjuntas Municipio 46 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 2.1 (md)
Depth
25 km below the surface
Felt
no reports yet
Nearest
Ponce Municipio, 24 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2789 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 47 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 320,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 230,000× the energy of this one
  3. Around the size people start to feel M 3.0 20× the energy of this one
  4. This earthquake M 2.1 about 47 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 17.7860, -66.6475. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ponce Municipio, PR 24 km (15 mi) S of here earthquakes near Ponce Municipio
Peñuelas Municipio, PR 28 km (17 mi) SSE of here earthquakes near Peñuelas Municipio
Juana Díaz Municipio, PR 29 km (18 mi) SW of here earthquakes near Juana Díaz Municipio
Guayanilla Municipio, PR 29 km (18 mi) SSE of here earthquakes near Guayanilla Municipio
Santa Isabel Municipio, PR 33 km (21 mi) SW of here earthquakes near Santa Isabel Municipio
Guánica Municipio, PR 34 km (21 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

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

  1. 1.8 2 km SSE of Santa Isabel, Puerto Rico
  2. 2.2 9 km SW of La Parguera, Puerto Rico
  3. 1.7 1 km NW of Parcelas Peñuelas, Puerto Rico
  4. 1.6 1 km SW of Guánica, Puerto Rico
  5. 1.7 2 km SSW of Tallaboa Alta, Puerto Rico
  6. 2.0 5 km NE of La Parguera, Puerto Rico
  7. 2.1 17 km S of Indios, Puerto Rico
  8. 2.2 20 km SSE of Indios, Puerto Rico
  9. 2.5 16 km S of Indios, Puerto Rico
  10. 2.0 5 km NNE of Ponce, Puerto Rico
  11. 1.9 4 km N of Ponce, Puerto Rico
  12. 2.0 10 km SSE of La Parguera, Puerto Rico
  13. 1.8 10 km WSW of Adjuntas, Puerto Rico
  14. 2.4 15 km S of Jobos, Puerto Rico
  15. 1.9 1 km SW of Magas Arriba, 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.