QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9md

10 km NNW of Camuy, Puerto Rico

· 13 km deep · released about 650 lb of TNT

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10 km30 km60 km120 km N Quebradillas Municipio 13 kmCamuy Municipio 14 kmHatillo Municipio 17 kmIsabela Municipio 18 kmArecibo Municipio 26 kmSan Sebastián Municipio 29 kmAguadilla Municipio 31 kmMoca Municipio 31 kmLares Municipio 33 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 2.9 (md)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Quebradillas Municipio, 13 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2466 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 650 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 23,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 16,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.5× the energy of this one
  4. This earthquake M 2.9 about 650 lb of TNT

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 18.5741, -66.8691. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Quebradillas Municipio, PR 13 km (8 mi) NNE of here earthquakes near Quebradillas Municipio
Camuy Municipio, PR 14 km (9 mi) N of here earthquakes near Camuy Municipio
Hatillo Municipio, PR 17 km (10 mi) NNW of here earthquakes near Hatillo Municipio
Isabela Municipio, PR 18 km (11 mi) ENE of here earthquakes near Isabela Municipio
Arecibo Municipio, PR 26 km (16 mi) NW of here earthquakes near Arecibo Municipio
San Sebastián Municipio, PR 29 km (18 mi) NNE of here earthquakes near San Sebastián Municipio

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

Aftershocks so far

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

  1. 1.6 3 km SSE of Utuado, Puerto Rico
  2. 2.5 17 km N of Carrizales, Puerto Rico
  3. 2.9 32 km NNW of San Antonio, Puerto Rico
  4. 1.9 11 km N of Yauco, Puerto Rico
  5. 2.3 34 km NW of San Antonio, Puerto Rico
  6. 2.1 3 km ENE of Rincón, Puerto Rico
  7. 3.0 42 km N of Tierras Nuevas Poniente, Puerto Rico
  8. 2.5 2 km SSW of Sabana Hoyos, Puerto Rico
  9. 2.8 50 km N of Arecibo, Puerto Rico
  10. 2.0 3 km W of Maricao, Puerto Rico
  11. 2.3 6 km NNE of Arecibo, Puerto Rico
  12. 2.4 29 km N of Isabela, Puerto Rico
  13. 1.9 3 km SE of Utuado, Puerto Rico
  14. 2.1 17 km NNW of San Antonio, Puerto Rico
  15. 1.6 11 km ESE of Maricao, 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.