QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8Md

14 km SSW of Stella, Puerto Rico

· 18 km deep · released about 480 lb of TNT

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10 km30 km60 km120 km N Rincón Municipio 16 kmAñasco Municipio 20 kmHormigueros Municipio 21 kmAguada Municipio 23 kmCabo Rojo Municipio 26 kmSan Germán Municipio 30 kmMoca Municipio 31 kmLas Marías Municipio 35 kmAguadilla Municipio 35 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
18 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Rincón Municipio, 16 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1518 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

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 18.2017, -67.3032. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 16 km (10 mi) SSW of here earthquakes near Rincón Municipio
Añasco Municipio, PR 20 km (13 mi) WSW of here earthquakes near Añasco Municipio
Hormigueros Municipio, PR 21 km (13 mi) WNW of here earthquakes near Hormigueros Municipio
Aguada Municipio, PR 23 km (14 mi) SSW of here earthquakes near Aguada Municipio
Cabo Rojo Municipio, PR 26 km (16 mi) NNW of here earthquakes near Cabo Rojo Municipio
San Germán Municipio, PR 30 km (19 mi) WNW of here earthquakes near San Germán Municipio

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

Aftershocks so far

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

  1. 2.1 4 km S of La Playa, Puerto Rico
  2. 2.2 5 km S of La Playa, Puerto Rico
  3. 2.5 4 km S of La Playa, Puerto Rico
  4. 2.9 5 km SSW of La Playa, Puerto Rico
  5. 3.0 52 km W of Pole Ojea, Puerto Rico
  6. 2.0 14 km SSW of La Parguera, Puerto Rico
  7. 3.0 26 km NW of Rincón, Puerto Rico
  8. 2.5 35 km WNW of Rincón, Puerto Rico
  9. 2.9 2 km NNE of Rafael Hernandez, Puerto Rico
  10. 2.3 9 km NW of Puerto Real, Puerto Rico
  11. 2.7 2 km SSW of Boquerón, Puerto Rico
  12. 3.1 37 km WNW of Rincón, Puerto Rico
  13. 1.7 11 km W of Puerto Real, Puerto Rico
  14. 2.0 2 km SSW of Cabo Rojo, Puerto Rico
  15. 2.5 1 km SSW of Cabo Rojo, 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.