QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8Md

28 km W of Stella, Puerto Rico

· 10 km deep · released about 480 lb of TNT

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10 km30 km60 km120 km N Rincón Municipio 29 kmAguada Municipio 36 kmAñasco Municipio 41 kmAguadilla Municipio 45 kmMayagüez Municipio 45 kmHormigueros Municipio 46 kmMoca Municipio 47 kmCabo Rojo Municipio 48 kmSan Germán Municipio 55 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
10 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 29 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3554 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 480 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 32,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 22,000× the energy of this one
  3. Around the size people start to feel M 3.0 2× the energy of this one
  4. This earthquake M 2.8 about 480 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 18.2870, -67.5179. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 29 km (18 mi) WSW of here earthquakes near Rincón Municipio
Aguada Municipio, PR 36 km (23 mi) WSW of here earthquakes near Aguada Municipio
Añasco Municipio, PR 41 km (25 mi) W of here earthquakes near Añasco Municipio
Aguadilla Municipio, PR 45 km (28 mi) WSW of here earthquakes near Aguadilla Municipio
Mayagüez Municipio, PR 45 km (28 mi) ENE of here earthquakes near Mayagüez Municipio
Hormigueros Municipio, PR 46 km (28 mi) WNW of here earthquakes near Hormigueros Municipio

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

Aftershocks so far

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

  1. 2.9 10 km W of Mayagüez, Puerto Rico
  2. 2.4 11 km WNW of Puerto Real, Puerto Rico
  3. 2.6 59 km WSW of Stella, Puerto Rico
  4. 3.2 38 km WSW of Stella, Puerto Rico
  5. 2.7 30 km NW of Rincón, Puerto Rico
  6. 3.0 20 km WSW of Stella, Puerto Rico
  7. 2.2 0 km NNW of Cabo Rojo, Puerto Rico
  8. 2.5 13 km SW of La Playa, Puerto Rico
  9. 2.2 28 km NW of Rincón, Puerto Rico
  10. 1.9 1 km SSE of Puerto Real, Puerto Rico
  11. 1.8 13 km WNW of Rincón, Puerto Rico
  12. 2.8 24 km SW of Stella, Puerto Rico
  13. 2.9 19 km WNW of Puerto Real, Puerto Rico
  14. 3.4 70 km W of Puerto Real, Puerto Rico
  15. 2.6 16 km WSW of Stella, 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.