QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

3 km E of Tierras Nuevas Poniente, Puerto Rico

· 97 km deep · released about 430 lb of TNT

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10 km30 km60 km120 km N Manatí Municipio 4 kmVega Baja Municipio 6 kmBarceloneta Municipio 11 kmVega Alta Municipio 13 kmFlorida Municipio 15 kmMorovis Municipio 16 kmCiales Municipio 20 kmDorado Municipio 20 kmCorozal Municipio 22 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 2.8 (md)
Depth
97 km below the surface
Felt
no reports yet
Nearest
Manatí Municipio, 4 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3133 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 430 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 35,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 25,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.2× the energy of this one
  4. This earthquake M 2.8 about 430 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 18.4615, -66.4543. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Manatí Municipio, PR 4 km (3 mi) ENE of here earthquakes near Manatí Municipio
Vega Baja Municipio, PR 6 km (4 mi) W of here earthquakes near Vega Baja Municipio
Barceloneta Municipio, PR 11 km (7 mi) E of here earthquakes near Barceloneta Municipio
Vega Alta Municipio, PR 13 km (8 mi) WNW of here earthquakes near Vega Alta Municipio
Florida Municipio, PR 15 km (10 mi) NE of here earthquakes near Florida Municipio
Morovis Municipio, PR 16 km (10 mi) NNW of here earthquakes near Morovis 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. 3.0 4 km W of Ciales, Puerto Rico
  2. 2.8 4 km NNE of Guaynabo, Puerto Rico
  3. 2.9 2 km WNW of Vega Baja, Puerto Rico
  4. 2.6 Puerto Rico region
  5. 3.1 10 km N of Hatillo, Puerto Rico
  6. 3.1 8 km NNW of Arecibo, Puerto Rico
  7. 3.1 18 km NNW of Brenas, Puerto Rico
  8. 3.2 40 km N of Arecibo, Puerto Rico
  9. 2.0 6 km SSE of Lares, Puerto Rico
  10. 2.3 33 km N of Arecibo, Puerto Rico
  11. 1.7 9 km W of Adjuntas, Puerto Rico
  12. 3.2 41 km N of Brenas, Puerto Rico
  13. 2.7 26 km NNW of Brenas, Puerto Rico
  14. 2.3 5 km N of Hatillo, Puerto Rico
  15. 2.9 1 km WSW of Cataño, 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.