QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1md

4 km NW of Camuy, Puerto Rico

· 105 km deep · released about 1,300 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Camuy Municipio 7 kmQuebradillas Municipio 8 kmHatillo Municipio 11 kmIsabela Municipio 15 kmArecibo Municipio 22 kmSan Sebastián Municipio 23 kmLares Municipio 26 kmMoca Municipio 27 kmAguadilla Municipio 29 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 3.1 (md)
Depth
105 km below the surface
Felt
no reports yet
Nearest
Camuy Municipio, 7 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1453 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 1,300 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 270,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 12,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 8,500× the energy of this one
  4. This earthquake M 3.1 about 1,300 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.3× 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 18.5123, -66.8705. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Camuy Municipio, PR 7 km (5 mi) N of here earthquakes near Camuy Municipio
Quebradillas Municipio, PR 8 km (5 mi) NE of here earthquakes near Quebradillas Municipio
Hatillo Municipio, PR 11 km (7 mi) NW of here earthquakes near Hatillo Municipio
Isabela Municipio, PR 15 km (10 mi) ENE of here earthquakes near Isabela Municipio
Arecibo Municipio, PR 22 km (14 mi) WNW of here earthquakes near Arecibo Municipio
San Sebastián Municipio, PR 23 km (14 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

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

  1. 2.3 4 km WNW of Santo Domingo, Puerto Rico
  2. 4.2 4 km W of Santo Domingo, Puerto Rico
  3. 3.1 5 km WNW of Santo Domingo, Puerto Rico
  4. 3.1 4 km N of Carrizales, Puerto Rico
  5. 1.8 4 km NNW of Yauco, Puerto Rico
  6. 2.6 5 km N of Carrizales, Puerto Rico
  7. 2.5 2 km NW of Las Marias, Puerto Rico
  8. 3.2 10 km NNE of Arecibo, Puerto Rico
  9. 2.0 12 km W of Adjuntas, Puerto Rico
  10. 3.1 27 km NW of San Antonio, Puerto Rico
  11. 2.8 1 km S of Garrochales, Puerto Rico
  12. 3.3 51 km N of Hatillo, Puerto Rico
  13. 2.6 2 km S of Mayagüez, Puerto Rico
  14. 3.3 18 km N of San Antonio, Puerto Rico
  15. 3.0 0 km SSW 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.

On USGS

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