QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

5 km SW of Liborio Negron Torres, Puerto Rico

· 17 km deep · released about 380 lb of TNT

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10 km30 km60 km120 km N Lajas Municipio 8 kmSabana Grande Municipio 9 kmGuánica Municipio 9 kmSan Germán Municipio 12 kmYauco Municipio 15 kmMaricao Municipio 19 kmGuayanilla Municipio 19 kmHormigueros Municipio 20 kmCabo Rojo 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 2.7 (md)
Depth
17 km below the surface
Felt
no reports yet
Nearest
Lajas Municipio, 8 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2670 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 380 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 40,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 29,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.5× the energy of this one
  4. This earthquake M 2.7 about 380 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 18.0118, -66.9773. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lajas Municipio, PR 8 km (5 mi) ENE of here earthquakes near Lajas Municipio
Sabana Grande Municipio, PR 9 km (5 mi) SSW of here earthquakes near Sabana Grande Municipio
Guánica Municipio, PR 9 km (6 mi) NW of here earthquakes near Guánica Municipio
San Germán Municipio, PR 12 km (8 mi) SSE of here earthquakes near San Germán Municipio
Yauco Municipio, PR 15 km (9 mi) WSW of here earthquakes near Yauco Municipio
Maricao Municipio, PR 19 km (12 mi) SSW of here earthquakes near Maricao Municipio

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

Aftershocks so far

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

  1. 2.0 8 km SW of Pole Ojea, Puerto Rico
  2. 2.1 3 km NE of Liborio Negron Torres, Puerto Rico
  3. 1.9 1 km W of Puerto Real, Puerto Rico
  4. 2.3 12 km SW of La Playa, Puerto Rico
  5. 1.8 15 km WSW of Puerto Real, Puerto Rico
  6. 2.4 19 km W of Puerto Real, Puerto Rico
  7. 2.8 20 km WNW of Puerto Real, Puerto Rico
  8. 2.0 3 km S of Guánica, Puerto Rico
  9. 1.9 6 km NNW of Santo Domingo, Puerto Rico
  10. 1.7 11 km NE of Sabana Grande, Puerto Rico
  11. 2.0 4 km SSE of Espino, Puerto Rico
  12. 1.5 3 km NNE of Mayagüez, Puerto Rico
  13. 2.3 18 km S of La Parguera, Puerto Rico
  14. 1.9 4 km NNW of Sabana Grande, Puerto Rico
  15. 1.8 9 km WNW 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.