QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

3 km SW of Maricao, Puerto Rico

· 24 km deep · released about 360 lb of TNT

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10 km30 km60 km120 km N San Germán Municipio 7 kmMaricao Municipio 8 kmLas Marías Municipio 8 kmSabana Grande Municipio 11 kmHormigueros Municipio 12 kmYauco Municipio 18 kmAñasco Municipio 19 kmSan Sebastián Municipio 19 kmLares Municipio 19 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 2.7 (md)
Depth
24 km below the surface
Felt
no reports yet
Nearest
San Germán Municipio, 7 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3348 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 360 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 42,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 30,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.6× the energy of this one
  4. This earthquake M 2.7 about 360 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 18.1616, -67.0061. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Germán Municipio, PR 7 km (4 mi) NNE of here earthquakes near San Germán Municipio
Maricao Municipio, PR 8 km (5 mi) W of here earthquakes near Maricao Municipio
Las Marías Municipio, PR 8 km (5 mi) SSW of here earthquakes near Las Marías Municipio
Sabana Grande Municipio, PR 11 km (7 mi) NW of here earthquakes near Sabana Grande Municipio
Hormigueros Municipio, PR 12 km (7 mi) ENE of here earthquakes near Hormigueros Municipio
Yauco Municipio, PR 18 km (11 mi) WNW of here earthquakes near Yauco Municipio

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

Aftershocks so far

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

  1. 2.5 2 km SSW of Palmarejo, Puerto Rico
  2. 2.0 3 km WNW of Puerto Real, Puerto Rico
  3. 2.1 5 km SSW of Maricao, Puerto Rico
  4. 2.0 4 km SE of Pole Ojea, Puerto Rico
  5. 2.4 Puerto Rico region
  6. 2.1 5 km SSW of La Parguera, Puerto Rico
  7. 2.6 11 km NNW of Camuy, Puerto Rico
  8. 2.3 17 km S of Tallaboa, Puerto Rico
  9. 2.3 13 km SSW of Guánica, Puerto Rico
  10. 2.1 5 km WNW of Maricao, Puerto Rico
  11. 1.6 5 km W of Maricao, Puerto Rico
  12. 2.0 6 km NNE of Lluveras, Puerto Rico
  13. 1.7 3 km SSE of Monte Grande, Puerto Rico
  14. 1.8 4 km SSE of Maricao, Puerto Rico
  15. 2.5 17 km NW of Rincón, 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.