QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2md

14 km NNW of Camuy, Puerto Rico

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

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Quebradillas Municipio 16 kmCamuy Municipio 18 kmIsabela Municipio 18 kmHatillo Municipio 21 kmAguadilla Municipio 29 kmArecibo Municipio 30 kmSan Sebastián Municipio 31 kmMoca Municipio 32 kmLares Municipio 37 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
100 km below the surface
Felt
no reports yet
Nearest
Quebradillas Municipio, 16 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 262 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 1,800 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 6.7 190,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 8,500× the energy of this one
  3. Magna, Utah 2020 M 5.7 6,000× 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 18.6052, -66.8978. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Quebradillas Municipio, PR 16 km (10 mi) NNE of here earthquakes near Quebradillas Municipio
Camuy Municipio, PR 18 km (11 mi) NNW of here earthquakes near Camuy Municipio
Isabela Municipio, PR 18 km (11 mi) NE of here earthquakes near Isabela Municipio
Hatillo Municipio, PR 21 km (13 mi) NNW of here earthquakes near Hatillo Municipio
Aguadilla Municipio, PR 29 km (18 mi) ENE of here earthquakes near Aguadilla Municipio
Arecibo Municipio, PR 30 km (19 mi) NW of here earthquakes near Arecibo Municipio

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

Aftershocks so far

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

  1. 3.1 40 km N of Tierras Nuevas Poniente, Puerto Rico
  2. 2.9 24 km N of Arecibo, Puerto Rico
  3. 2.9 0 km SSW of Rincón, Puerto Rico
  4. 2.9 2 km ESE of Cacao, Puerto Rico
  5. 3.1 10 km N of Hatillo, Puerto Rico
  6. 3.0 38 km NNW of San Antonio, Puerto Rico
  7. 2.8 12 km NE of Isabela, Puerto Rico
  8. 3.0 16 km NNE of Isabela, Puerto Rico
  9. 3.0 15 km NNE of Carrizales, Puerto Rico
  10. 2.9 2 km WNW of Mora, Puerto Rico
  11. 2.7 3 km NW of San Antonio, Puerto Rico
  12. 2.7 36 km NW of San Antonio, Puerto Rico
  13. 2.2 2 km SSE of Las Marías, Puerto Rico
  14. 3.0 17 km NNE of Arecibo, Puerto Rico
  15. 3.0 43 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.3 on 2025-08-22 — it released about 48 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.