QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3md

35 km NW of Rincón, Puerto Rico

· 6.0 km deep · released about 1.1 tons of TNT

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10 km30 km60 km120 km N Rincón Municipio 36 kmAguadilla Municipio 36 kmAguada Municipio 38 kmMoca Municipio 47 kmAñasco Municipio 49 kmIsabela Municipio 49 kmQuebradillas Municipio 59 kmSan Sebastián Municipio 60 kmHormigueros Municipio 62 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 3.3 (md)
Depth
6.0 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 36 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3201 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 1.1 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 150,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 6,700× the energy of this one
  3. Magna, Utah 2020 M 5.7 4,700× the energy of this one
  4. This earthquake M 3.3 about 1.1 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.4× 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 18.5835, -67.4700. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 36 km (22 mi) NW of here earthquakes near Rincón Municipio
Aguadilla Municipio, PR 36 km (23 mi) WNW of here earthquakes near Aguadilla Municipio
Aguada Municipio, PR 38 km (24 mi) NW of here earthquakes near Aguada Municipio
Moca Municipio, PR 47 km (29 mi) WNW of here earthquakes near Moca Municipio
Añasco Municipio, PR 49 km (30 mi) NW of here earthquakes near Añasco Municipio
Isabela Municipio, PR 49 km (31 mi) WNW of here earthquakes near Isabela Municipio

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

Aftershocks so far

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

  1. 1.9 6 km W of Stella, Puerto Rico
  2. 2.9 40 km NW of San Antonio, Puerto Rico
  3. 2.1 Mona Passage
  4. 2.5 37 km WNW of Rincón, Puerto Rico
  5. 3.1 42 km NW of Aguadilla, Puerto Rico
  6. 2.9 48 km NNW of San Antonio, Puerto Rico
  7. 2.5 16 km SW of Stella, Puerto Rico
  8. 1.9 Mona Passage
  9. 3.1 17 km NW of Rincón, Puerto Rico
  10. 2.9 39 km N of San Antonio, Puerto Rico
  11. 2.6 31 km N of San Antonio, Puerto Rico
  12. 2.7 21 km SW of Stella, Puerto Rico
  13. 2.0 15 km SSW of Stella, Puerto Rico
  14. 2.7 19 km NW of San Antonio, Puerto Rico
  15. 3.2 42 km NNW of San Antonio, 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

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