QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

0 km SE of Garrochales, Puerto Rico

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

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Barceloneta Municipio 2 kmManatí Municipio 7 kmFlorida Municipio 9 kmArecibo Municipio 12 kmVega Baja Municipio 17 kmCiales Municipio 18 kmMorovis Municipio 21 kmVega Alta Municipio 24 kmUtuado Municipio 25 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 3.0 (md)
Depth
116 km below the surface
Felt
no reports yet
Nearest
Barceloneta Municipio, 2 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3095 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 1,100 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 320,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 14,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 10,000× the energy of this one
  4. This earthquake M 3.0 about 1,100 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 18.4488, -66.5625. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Barceloneta Municipio, PR 2 km (1 mi) S of here earthquakes near Barceloneta Municipio
Manatí Municipio, PR 7 km (5 mi) W of here earthquakes near Manatí Municipio
Florida Municipio, PR 9 km (6 mi) N of here earthquakes near Florida Municipio
Arecibo Municipio, PR 12 km (7 mi) E of here earthquakes near Arecibo Municipio
Vega Baja Municipio, PR 17 km (11 mi) W of here earthquakes near Vega Baja Municipio
Ciales Municipio, PR 18 km (11 mi) NNW of here earthquakes near Ciales Municipio

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

Aftershocks so far

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

  1. 1.7 8 km ESE of Maricao, Puerto Rico
  2. 2.6 17 km N of Tierras Nuevas Poniente, Puerto Rico
  3. 1.9 10 km SSE of Lares, Puerto Rico
  4. 2.5 3 km NW of Barahona, Puerto Rico
  5. 2.8 7 km ENE of Arecibo, Puerto Rico
  6. 2.8 2 km NNW of Barceloneta, Puerto Rico
  7. 2.5 1 km WNW of Campanilla, Puerto Rico
  8. 2.8 12 km N of Quebradillas, Puerto Rico
  9. 2.4 Puerto Rico region
  10. 1.7 3 km ESE of Ponce, Puerto Rico
  11. 2.0 8 km WSW of Adjuntas, Puerto Rico
  12. 2.2 4 km SW of Comerío, Puerto Rico
  13. 2.9 12 km NNE of Isabela, Puerto Rico
  14. 3.1 7 km NNW of Vega Baja, Puerto Rico
  15. 1.9 4 km SW of Coto Laurel, 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.