QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8Md

29 km WNW of Puerto Real, Puerto Rico

· 16 km deep · released about 480 lb of TNT

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10 km30 km60 km120 km N Rincón Municipio 32 kmCabo Rojo Municipio 34 kmHormigueros Municipio 37 kmAñasco Municipio 39 kmAguada Municipio 40 kmMayagüez Municipio 45 kmSan Germán Municipio 45 kmLajas Municipio 48 kmMoca Municipio 49 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 2.8 (Md)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 32 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3663 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 480 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 18.1338, -67.4636. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 32 km (20 mi) SW of here earthquakes near Rincón Municipio
Cabo Rojo Municipio, PR 34 km (21 mi) WNW of here earthquakes near Cabo Rojo Municipio
Hormigueros Municipio, PR 37 km (23 mi) W of here earthquakes near Hormigueros Municipio
Añasco Municipio, PR 39 km (24 mi) WSW of here earthquakes near Añasco Municipio
Aguada Municipio, PR 40 km (25 mi) SW of here earthquakes near Aguada Municipio
Mayagüez Municipio, PR 45 km (28 mi) E of here earthquakes near Mayagüez Municipio

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

Aftershocks so far

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

  1. 2.4 19 km WNW of Aguadilla, Puerto Rico
  2. 2.1 5 km W of Rincón, Puerto Rico
  3. 2.0 30 km W of Rincón, Puerto Rico
  4. 2.1 3 km NNE of La Parguera, Puerto Rico
  5. 2.1 6 km W of La Parguera, Puerto Rico
  6. 1.7 1 km SSE of La Parguera, Puerto Rico
  7. 2.5 9 km SSW of La Parguera, Puerto Rico
  8. 1.9 0 km SSE of Las Marias, Puerto Rico
  9. 3.0 11 km WNW of Puerto Real, Puerto Rico
  10. 2.3 Puerto Rico region
  11. 3.0 37 km W of Rincón, Puerto Rico
  12. 2.7 62 km W of Rincón, Puerto Rico
  13. 2.0 10 km W of Puerto Real, Puerto Rico
  14. 2.3 9 km NW of Rincón, Puerto Rico
  15. 2.1 22 km WNW of Puerto Real, 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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