QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2md

48 km WSW of Stella, Puerto Rico

· 5.1 km deep · released about 1.1 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mayagüez Municipio 24 kmRincón Municipio 49 kmAguada Municipio 57 kmCabo Rojo Municipio 59 kmAñasco Municipio 60 kmHormigueros Municipio 61 kmAguadilla Municipio 66 kmMoca Municipio 67 kmSan Germán Municipio 70 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
5.1 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Mayagüez Municipio, 24 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1165 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 1.1 tons 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 6.7 160,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 7,200× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,100× the energy of this one
  4. This earthquake M 3.2 about 1.1 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.2× 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 18.2035, -67.6917. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 24 km (15 mi) ENE of here earthquakes near Mayagüez Municipio
Rincón Municipio, PR 49 km (30 mi) WSW of here earthquakes near Rincón Municipio
Aguada Municipio, PR 57 km (35 mi) WSW of here earthquakes near Aguada Municipio
Cabo Rojo Municipio, PR 59 km (36 mi) WNW of here earthquakes near Cabo Rojo Municipio
Añasco Municipio, PR 60 km (37 mi) W of here earthquakes near Añasco Municipio
Hormigueros Municipio, PR 61 km (38 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

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

  1. 2.6 8 km WNW of Puerto Real, Puerto Rico
  2. 2.9 19 km SW of Stella, Puerto Rico
  3. 3.4 57 km SE of Punta Cana, Dominican Republic
  4. 2.4 12 km SSW of Stella, Puerto Rico
  5. 3.2 2 km SSW of Stella, Puerto Rico
  6. 3.0 Mona Passage
  7. 2.9 23 km W of Puerto Real, Puerto Rico
  8. 3.4 56 km ESE of Punta Cana, Dominican Republic
  9. 3.6 Mona Passage
  10. 2.8 Mona Passage
  11. 2.5 18 km WNW of Puerto Real, Puerto Rico
  12. 2.6 21 km SW of Stella, Puerto Rico
  13. 3.8 56 km SE of Punta Cana, Dominican Republic
  14. 3.0 Mona Passage
  15. 2.6 16 km W of Rincón, 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 4.4 on 2017-10-01 — it released about 57 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.