QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2Md

59 km WSW of Stella, Puerto Rico

· 110 km deep · released about 1,900 lb of TNT

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10 km30 km60 km120 km N Mayagüez Municipio 16 kmRincón Municipio 60 kmAguada Municipio 67 kmCabo Rojo Municipio 69 kmAñasco Municipio 71 kmHormigueros Municipio 72 kmAguadilla Municipio 76 kmMoca Municipio 78 kmSan Germán Municipio 81 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 3.2 (Md)
Depth
110 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 16 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3471 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 1,900 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 180,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 7,900× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,600× the energy of this one
  4. This earthquake M 3.2 about 1,900 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 2× more

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 18.1963, -67.7945. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 16 km (10 mi) NE of here earthquakes near Mayagüez Municipio
Rincón Municipio, PR 60 km (37 mi) WSW of here earthquakes near Rincón Municipio
Aguada Municipio, PR 67 km (42 mi) WSW of here earthquakes near Aguada Municipio
Cabo Rojo Municipio, PR 69 km (43 mi) WNW of here earthquakes near Cabo Rojo Municipio
Añasco Municipio, PR 71 km (44 mi) W of here earthquakes near Añasco Municipio
Hormigueros Municipio, PR 72 km (45 mi) W of here earthquakes near Hormigueros 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 44 km NW of Rincón, Puerto Rico
  2. 2.5 42 km WNW of Rincón, Puerto Rico
  3. 2.8 38 km WNW of Rincón, Puerto Rico
  4. 3.0 42 km W of Rincón, Puerto Rico
  5. 2.5 47 km WNW of Rincón, Puerto Rico
  6. 3.0 33 km W of Rincón, Puerto Rico
  7. 3.0 43 km WNW of Rincón, Puerto Rico
  8. 2.9 38 km WNW of Rincón, Puerto Rico
  9. 3.0 57 km E of Punta Cana, Dominican Republic
  10. 3.3 62 km SE of Punta Cana, Dominican Republic
  11. 1.8 35 km WNW of Rincón, Puerto Rico
  12. 3.0 36 km WNW of Rincón, Puerto Rico
  13. 2.7 44 km W of Rincón, Puerto Rico
  14. 2.1 39 km NW of Rincón, Puerto Rico
  15. 3.2 61 km SE of Punta Cana, Dominican Republic

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.