QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3Md

9 km WSW of Puerto Real, Puerto Rico

· 21 km deep · released about 85 lb of TNT

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10 km30 km60 km120 km N Cabo Rojo Municipio 11 kmHormigueros Municipio 19 kmSan Germán Municipio 25 kmLajas Municipio 26 kmAñasco Municipio 30 kmRincón Municipio 32 kmSabana Grande Municipio 34 kmLas Marías Municipio 37 kmAguada Municipio 37 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 2.3 (Md)
Depth
21 km below the surface
Felt
no reports yet
Nearest
Cabo Rojo Municipio, 11 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3590 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 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 85 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 18.0515, -67.2701. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cabo Rojo Municipio, PR 11 km (7 mi) WNW of here earthquakes near Cabo Rojo Municipio
Hormigueros Municipio, PR 19 km (12 mi) WSW of here earthquakes near Hormigueros Municipio
San Germán Municipio, PR 25 km (16 mi) WSW of here earthquakes near San Germán Municipio
Lajas Municipio, PR 26 km (16 mi) WNW of here earthquakes near Lajas Municipio
Añasco Municipio, PR 30 km (19 mi) SSW of here earthquakes near Añasco Municipio
Rincón Municipio, PR 32 km (20 mi) S of here earthquakes near Rincón Municipio

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

Aftershocks so far

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

  1. 2.8 28 km W of Stella, Puerto Rico
  2. 1.9 7 km SE of Pole Ojea, Puerto Rico
  3. 1.7 23 km S of La Parguera, Puerto Rico
  4. 1.6 5 km W of Hormigueros, Puerto Rico
  5. 2.7 11 km S of Pole Ojea, Puerto Rico
  6. 1.8 4 km WNW of Mayagüez, Puerto Rico
  7. 1.9 15 km S of Guánica, Puerto Rico
  8. 2.1 5 km NNE of Sabana Eneas, Puerto Rico
  9. 2.4 4 km NW of Rincón, Puerto Rico
  10. 2.5 0 km S of Hormigueros, Puerto Rico
  11. 2.0 11 km SSE of Pole Ojea, Puerto Rico
  12. 2.2 8 km SW of La Parguera, Puerto Rico
  13. 2.0 7 km WNW of Puerto Real, Puerto Rico
  14. 2.6 13 km NW of Rincón, Puerto Rico
  15. 1.5 0 km E 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

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