QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8Md

6 km SSW of La Playa, Puerto Rico

· 30 km deep · released about 480 lb of TNT

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10 km30 km60 km120 km N Añasco Municipio 10 kmRincón Municipio 13 kmHormigueros Municipio 14 kmAguada Municipio 17 kmMoca Municipio 21 kmSan Germán Municipio 23 kmLas Marías Municipio 24 kmCabo Rojo Municipio 26 kmSan Sebastián Municipio 28 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
30 km below the surface
Felt
no reports yet
Nearest
Añasco Municipio, 10 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3504 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 18.2285, -67.2086. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Añasco Municipio, PR 10 km (6 mi) SW of here earthquakes near Añasco Municipio
Rincón Municipio, PR 13 km (8 mi) SSE of here earthquakes near Rincón Municipio
Hormigueros Municipio, PR 14 km (9 mi) NW of here earthquakes near Hormigueros Municipio
Aguada Municipio, PR 17 km (10 mi) S of here earthquakes near Aguada Municipio
Moca Municipio, PR 21 km (13 mi) SW of here earthquakes near Moca Municipio
San Germán Municipio, PR 23 km (14 mi) NW 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

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

  1. 2.0 7 km WNW of Puerto Real, Puerto Rico
  2. 2.6 13 km NW of Rincón, Puerto Rico
  3. 1.5 0 km E of San Germán, Puerto Rico
  4. 1.8 2 km E of Sabana Grande, Puerto Rico
  5. 2.1 11 km WNW of Puerto Real, Puerto Rico
  6. 2.1 3 km SE of Maricao, Puerto Rico
  7. 2.3 6 km W of La Parguera, Puerto Rico
  8. 2.0 8 km ESE of Pole Ojea, Puerto Rico
  9. 1.9 5 km N of San Germán, Puerto Rico
  10. 2.1 5 km SSW of Maricao, Puerto Rico
  11. 2.9 2 km SSW of Stella, Puerto Rico
  12. 2.6 11 km NW of Puerto Real, Puerto Rico
  13. 2.1 14 km WNW of Puerto Real, Puerto Rico
  14. 2.4 12 km NW of Puerto Real, Puerto Rico
  15. 2.4 26 km W of Puerto Real, 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.