QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

2 km NW of Rafael Gonzalez, Puerto Rico

· 110 km deep · released about 380 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hatillo Municipio 0 kmCamuy Municipio 7 kmArecibo Municipio 13 kmQuebradillas Municipio 14 kmLares Municipio 20 kmUtuado Municipio 22 kmSan Sebastián Municipio 22 kmIsabela Municipio 23 kmBarceloneta Municipio 26 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 2.7 (md)
Depth
110 km below the surface
Felt
no reports yet
Nearest
Hatillo Municipio, 0 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2791 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 380 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 40,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 29,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.5× the energy of this one
  4. This earthquake M 2.7 about 380 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 18.4440, -66.7991. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hatillo Municipio, PR 0 km (0 mi) NNW of here earthquakes near Hatillo Municipio
Camuy Municipio, PR 7 km (4 mi) E of here earthquakes near Camuy Municipio
Arecibo Municipio, PR 13 km (8 mi) W of here earthquakes near Arecibo Municipio
Quebradillas Municipio, PR 14 km (9 mi) E of here earthquakes near Quebradillas Municipio
Lares Municipio, PR 20 km (12 mi) NNE of here earthquakes near Lares Municipio
Utuado Municipio, PR 22 km (14 mi) NNW of here earthquakes near Utuado Municipio

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

Aftershocks so far

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

  1. 2.5 Puerto Rico region
  2. 2.7 0 km NW of Maricao, Puerto Rico
  3. 1.9 1 km SE of Maricao, Puerto Rico
  4. 2.5 0 km WSW of Maricao, Puerto Rico
  5. 2.1 8 km WNW of San Antonio, Puerto Rico
  6. 2.0 5 km NNE of Ponce, Puerto Rico
  7. 1.9 4 km N of Ponce, Puerto Rico
  8. 2.0 1 km NW of Arecibo, Puerto Rico
  9. 1.8 10 km WSW of Adjuntas, Puerto Rico
  10. 2.9 4 km S of La Playa, Puerto Rico
  11. 1.9 1 km SW of Magas Arriba, Puerto Rico
  12. 2.0 3 km WNW of Maricao, Puerto Rico
  13. 1.8 13 km E of Maricao, Puerto Rico
  14. 2.4 22 km NNW of Isabela, Puerto Rico
  15. 1.7 10 km WNW of Adjuntas, 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.