QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9md

2 km WNW of Vega Baja, Puerto Rico

· 80 km deep · released about 650 lb of TNT

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10 km30 km60 km120 km N Vega Baja Municipio 1 kmVega Alta Municipio 8 kmManatí Municipio 9 kmMorovis Municipio 15 kmBarceloneta Municipio 16 kmDorado Municipio 16 kmFlorida Municipio 19 kmCorozal Municipio 19 kmToa Alta Municipio 20 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
80 km below the surface
Felt
no reports yet
Nearest
Vega Baja Municipio, 1 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3078 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 18.4531, -66.4113. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Vega Baja Municipio, PR 1 km (1 mi) W of here earthquakes near Vega Baja Municipio
Vega Alta Municipio, PR 8 km (5 mi) WNW of here earthquakes near Vega Alta Municipio
Manatí Municipio, PR 9 km (5 mi) E of here earthquakes near Manatí Municipio
Morovis Municipio, PR 15 km (9 mi) N of here earthquakes near Morovis Municipio
Barceloneta Municipio, PR 16 km (10 mi) E of here earthquakes near Barceloneta Municipio
Dorado Municipio, PR 16 km (10 mi) W of here earthquakes near Dorado Municipio

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

Aftershocks so far

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

  1. 2.3 33 km NNE of Carrizales, Puerto Rico
  2. 2.5 17 km NNE of Carrizales, Puerto Rico
  3. 2.3 Puerto Rico region
  4. 2.8 25 km N of Arecibo, Puerto Rico
  5. 3.1 22 km N of Arecibo, Puerto Rico
  6. 2.6 3 km N of Corozal, Puerto Rico
  7. 2.7 22 km N of Tierras Nuevas Poniente, Puerto Rico
  8. 2.5 17 km N of Carrizales, Puerto Rico
  9. 2.6 45 km N of Tierras Nuevas Poniente, Puerto Rico
  10. 2.8 4 km NW of Bairoa, Puerto Rico
  11. 2.5 9 km N of Dorado, Puerto Rico
  12. 2.1 6 km NW of Palomas, Puerto Rico
  13. 2.8 1 km N of Bayamón, Puerto Rico
  14. 2.4 8 km ESE of Jayuya, Puerto Rico
  15. 2.7 Puerto Rico region

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.