QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

31 km W of Puerto Real, Puerto Rico

· 62 km deep · released about 1,100 lb of TNT

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10 km30 km60 km120 km N Cabo Rojo Municipio 34 kmRincón Municipio 39 kmHormigueros Municipio 40 kmMayagüez Municipio 42 kmAñasco Municipio 45 kmAguada Municipio 46 kmSan Germán Municipio 48 kmLajas Municipio 49 kmMoca Municipio 55 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 3.0 (md)
Depth
62 km below the surface
Felt
no reports yet
Nearest
Cabo Rojo Municipio, 34 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3327 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 1,100 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 310,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 14,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 9,800× the energy of this one
  4. This earthquake M 3.0 about 1,100 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 18.0756, -67.4893. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cabo Rojo Municipio, PR 34 km (21 mi) WNW of here earthquakes near Cabo Rojo Municipio
Rincón Municipio, PR 39 km (24 mi) SW of here earthquakes near Rincón Municipio
Hormigueros Municipio, PR 40 km (25 mi) W of here earthquakes near Hormigueros Municipio
Mayagüez Municipio, PR 42 km (26 mi) E of here earthquakes near Mayagüez Municipio
Añasco Municipio, PR 45 km (28 mi) WSW of here earthquakes near Añasco Municipio
Aguada Municipio, PR 46 km (29 mi) SW of here earthquakes near Aguada Municipio

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

Aftershocks so far

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

  1. 2.1 32 km WNW of Rincón, Puerto Rico
  2. 2.2 3 km SSE of Boquerón, Puerto Rico
  3. 3.1 66 km WSW of Stella, Puerto Rico
  4. 2.6 10 km NW of Puerto Real, Puerto Rico
  5. 2.3 2 km NE of Hormigueros, Puerto Rico
  6. 1.7 1 km SW of Cabo Rojo, Puerto Rico
  7. 2.7 27 km WNW of Rincón, Puerto Rico
  8. 1.8 5 km NNE of San Germán, Puerto Rico
  9. 3.0 68 km SE of Punta Cana, Dominican Republic
  10. 1.9 Puerto Rico region
  11. 2.8 71 km W of Pole Ojea, Puerto Rico
  12. 1.8 11 km SSE of Pole Ojea, Puerto Rico
  13. 2.3 9 km SSE of Pole Ojea, Puerto Rico
  14. 1.8 8 km S of La Parguera, Puerto Rico
  15. 1.8 12 km SSW of La Parguera, 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.