QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2md

29 km NNW of Rincón, Puerto Rico

· 12 km deep · released about 1,800 lb of TNT

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10 km30 km60 km120 km N Aguadilla Municipio 29 kmRincón Municipio 29 kmAguada Municipio 31 kmMoca Municipio 40 kmAñasco Municipio 42 kmIsabela Municipio 42 kmQuebradillas Municipio 51 kmSan Sebastián Municipio 52 kmHormigueros Municipio 56 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
12 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Aguadilla Municipio, 29 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1792 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 1,800 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 8,200× the energy of this one
  3. Magna, Utah 2020 M 5.7 5,800× the energy of this one
  4. This earthquake M 3.2 about 1,800 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.9× 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 18.5615, -67.4030. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Aguadilla Municipio, PR 29 km (18 mi) WNW of here earthquakes near Aguadilla Municipio
Rincón Municipio, PR 29 km (18 mi) NNW of here earthquakes near Rincón Municipio
Aguada Municipio, PR 31 km (19 mi) NW of here earthquakes near Aguada Municipio
Moca Municipio, PR 40 km (25 mi) WNW of here earthquakes near Moca Municipio
Añasco Municipio, PR 42 km (26 mi) NW of here earthquakes near Añasco Municipio
Isabela Municipio, PR 42 km (26 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

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

  1. 2.4 35 km NW of Rincón, Puerto Rico
  2. 1.9 38 km WNW of Rincón, Puerto Rico
  3. 2.7 4 km SSE of Stella, Puerto Rico
  4. 2.6 23 km NNE of Isabela, Puerto Rico
  5. 1.9 12 km WNW of Puerto Real, Puerto Rico
  6. 2.7 5 km SW of La Playa, Puerto Rico
  7. 3.3 62 km NNW of San Antonio, Puerto Rico
  8. 3.3 61 km NW of Rincón, Puerto Rico
  9. 2.1 2 km ESE of Moca, Puerto Rico
  10. 2.7 22 km WNW of Puerto Real, Puerto Rico
  11. 3.3 46 km NNW of San Antonio, Puerto Rico
  12. 3.1 61 km NW of Rincón, Puerto Rico
  13. 2.9 18 km WSW of Stella, Puerto Rico
  14. 2.8 43 km NW of San Antonio, Puerto Rico
  15. 2.6 42 km NW 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.6 on 2020-01-29 — it released about 130 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.