QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2md

65 km W of Stella, Puerto Rico

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

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10 km30 km60 km120 km N Mayagüez Municipio 17 kmRincón Municipio 66 kmAguada Municipio 73 kmCabo Rojo Municipio 77 kmAñasco Municipio 77 kmHormigueros Municipio 80 kmAguadilla Municipio 81 kmMoca Municipio 84 kmSan Germán Municipio 88 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
117 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 17 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3225 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 18.2350, -67.8630. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 17 km (11 mi) N of here earthquakes near Mayagüez Municipio
Rincón Municipio, PR 66 km (41 mi) W of here earthquakes near Rincón Municipio
Aguada Municipio, PR 73 km (45 mi) WSW of here earthquakes near Aguada Municipio
Cabo Rojo Municipio, PR 77 km (48 mi) WNW of here earthquakes near Cabo Rojo Municipio
Añasco Municipio, PR 77 km (48 mi) W of here earthquakes near Añasco Municipio
Hormigueros Municipio, PR 80 km (50 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

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

  1. 3.0 80 km W of Pole Ojea, Puerto Rico
  2. 2.8 Mona Passage
  3. 3.3 40 km SE of Punta Cana, Dominican Republic
  4. 3.0 48 km SSE of Punta Cana, Dominican Republic
  5. 2.7 20 km W of Rincón, Puerto Rico
  6. 3.2 47 km ESE of Punta Cana, Dominican Republic
  7. 2.9 52 km SE of Punta Cana, Dominican Republic
  8. 3.1 60 km ESE of Punta Cana, Dominican Republic
  9. 2.5 23 km W of Rincón, Puerto Rico
  10. 2.7 21 km W of Rincón, Puerto Rico
  11. 2.6 27 km SW of Stella, Puerto Rico
  12. 2.7 52 km SE of Punta Cana, Dominican Republic
  13. 2.9 51 km SE of Punta Cana, Dominican Republic
  14. 2.5 37 km WNW of Rincón, Puerto Rico
  15. 2.5 21 km ESE 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.3 on 2017-07-18 — it released about 45 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.