QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

6 km NNW of Garrochales, Puerto Rico

· 111 km deep · released about 350 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Barceloneta Municipio 5 kmManatí Municipio 11 kmArecibo Municipio 13 kmFlorida Municipio 16 kmVega Baja Municipio 20 kmHatillo Municipio 24 kmCiales Municipio 25 kmVega Alta Municipio 27 kmMorovis Municipio 27 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
111 km below the surface
Felt
no reports yet
Nearest
Barceloneta Municipio, 5 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2780 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 350 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 43,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 31,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.7× the energy of this one
  4. This earthquake M 2.7 about 350 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 18.5080, -66.5793. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Barceloneta Municipio, PR 5 km (3 mi) NNW of here earthquakes near Barceloneta Municipio
Manatí Municipio, PR 11 km (7 mi) NW of here earthquakes near Manatí Municipio
Arecibo Municipio, PR 13 km (8 mi) NE of here earthquakes near Arecibo Municipio
Florida Municipio, PR 16 km (10 mi) N of here earthquakes near Florida Municipio
Vega Baja Municipio, PR 20 km (12 mi) WNW of here earthquakes near Vega Baja Municipio
Hatillo Municipio, PR 24 km (15 mi) ENE of here earthquakes near Hatillo Municipio

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

Aftershocks so far

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

  1. 1.6 3 km NNW of Isabela, Puerto Rico
  2. 2.9 11 km NNE of Brenas, Puerto Rico
  3. 1.8 6 km SW of Utuado, Puerto Rico
  4. 2.4 2 km NNE of Tierras Nuevas Poniente, Puerto Rico
  5. 1.9 7 km NE of Utuado, Puerto Rico
  6. 2.1 Puerto Rico region
  7. 2.0 3 km N of Juncal, Puerto Rico
  8. 2.6 0 km ENE of Sabana Seca, Puerto Rico
  9. 1.8 7 km W of Orocovis, Puerto Rico
  10. 2.6 Puerto Rico region
  11. 2.3 10 km NNW of Arecibo, Puerto Rico
  12. 2.1 17 km N of Tierras Nuevas Poniente, Puerto Rico
  13. 1.7 31 km N of Carrizales, Puerto Rico
  14. 2.5 44 km N of Brenas, Puerto Rico
  15. 2.4 30 km N of Hatillo, 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.