QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2md

56 km WSW of Stella, Puerto Rico

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

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10 km30 km60 km120 km N Mayagüez Municipio 16 kmRincón Municipio 57 kmCabo Rojo Municipio 60 kmHormigueros Municipio 65 kmAguada Municipio 65 kmAñasco Municipio 67 kmSan Germán Municipio 74 kmLajas Municipio 75 kmAguadilla Municipio 75 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
53 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Mayagüez Municipio, 16 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 357 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

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 18.1018, -67.7333. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 16 km (10 mi) E of here earthquakes near Mayagüez Municipio
Rincón Municipio, PR 57 km (36 mi) WSW of here earthquakes near Rincón Municipio
Cabo Rojo Municipio, PR 60 km (37 mi) WNW of here earthquakes near Cabo Rojo Municipio
Hormigueros Municipio, PR 65 km (41 mi) W of here earthquakes near Hormigueros Municipio
Aguada Municipio, PR 65 km (41 mi) WSW of here earthquakes near Aguada Municipio
Añasco Municipio, PR 67 km (42 mi) WSW of here earthquakes near Añasco Municipio

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

Aftershocks so far

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

  1. 2.9 34 km WSW of Stella, Puerto Rico
  2. 3.3 63 km WSW of Stella, Puerto Rico
  3. 2.8 47 km WSW of Stella, Puerto Rico
  4. 2.9 10 km SW of Stella, Puerto Rico
  5. 3.0 52 km WSW of Stella, Puerto Rico
  6. 2.7 10 km W of Rincón, Puerto Rico
  7. 3.4 56 km WSW of Stella, Puerto Rico
  8. 3.9 81 km SE of Boca de Yuma, Dominican Republic
  9. 3.0 43 km WSW of Stella, Puerto Rico
  10. 2.5 22 km W of Puerto Real, Puerto Rico
  11. 3.2 29 km W of Pole Ojea, Puerto Rico
  12. 2.4 22 km SW of Stella, Puerto Rico
  13. 3.4 56 km ESE of Boca de Yuma, Dominican Republic
  14. 3.5 61 km WSW of Stella, Puerto Rico
  15. 3.2 46 km WSW of Stella, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.8 on 2024-08-26 — it released about 250 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.