QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

7 km NNW of Puerto Real, Puerto Rico

· 19 km deep · released about 79 lb of TNT

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10 km30 km60 km120 km N Hormigueros Municipio 10 kmCabo Rojo Municipio 16 kmAñasco Municipio 18 kmSan Germán Municipio 19 kmRincón Municipio 23 kmLajas Municipio 25 kmAguada Municipio 26 kmLas Marías Municipio 27 kmSabana Grande Municipio 29 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
19 km below the surface
Felt
no reports yet
Nearest
Hormigueros Municipio, 10 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3330 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 79 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 5.8 190,000× 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 12× the energy of this one
  4. This earthquake M 2.3 about 79 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 18.1393, -67.2118. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hormigueros Municipio, PR 10 km (6 mi) W of here earthquakes near Hormigueros Municipio
Cabo Rojo Municipio, PR 16 km (10 mi) NNW of here earthquakes near Cabo Rojo Municipio
Añasco Municipio, PR 18 km (11 mi) SSW of here earthquakes near Añasco Municipio
San Germán Municipio, PR 19 km (12 mi) W of here earthquakes near San Germán Municipio
Rincón Municipio, PR 23 km (14 mi) S of here earthquakes near Rincón Municipio
Lajas Municipio, PR 25 km (16 mi) NW of here earthquakes near Lajas 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. 1.5 3 km ESE of Boquerón, Puerto Rico
  2. 2.3 34 km W of Puerto Real, Puerto Rico
  3. 2.6 28 km W of Puerto Real, Puerto Rico
  4. 2.1 9 km SSW of Guánica, Puerto Rico
  5. 2.6 22 km WNW of Rincón, Puerto Rico
  6. 1.9 12 km SSW of Guánica, Puerto Rico
  7. 2.3 1 km E of Pole Ojea, Puerto Rico
  8. 1.7 3 km SW of Las Marías, Puerto Rico
  9. 2.0 7 km ESE of La Parguera, Puerto Rico
  10. 1.9 21 km S of La Parguera, Puerto Rico
  11. 1.6 2 km S of Cabo Rojo, Puerto Rico
  12. 2.0 0 km NW of Liborio Negron Torres, Puerto Rico
  13. 2.3 31 km WSW of Stella, Puerto Rico
  14. 2.1 14 km S of Pole Ojea, Puerto Rico
  15. 2.1 3 km SSE of Pole Ojea, 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.