QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

6 km SSE of Lares, Puerto Rico

· 34 km deep · released about 100 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lares Municipio 5 kmMaricao Municipio 10 kmLas Marías Municipio 12 kmAdjuntas Municipio 13 kmSan Sebastián Municipio 15 kmYauco Municipio 17 kmUtuado Municipio 17 kmSabana Grande Municipio 19 kmCamuy Municipio 23 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 2.4 (md)
Depth
34 km below the surface
Felt
no reports yet
Nearest
Lares Municipio, 5 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2871 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 100 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 150,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.4× the energy of this one
  4. This earthquake M 2.4 about 100 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 18.2360, -66.8620. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lares Municipio, PR 5 km (3 mi) S of here earthquakes near Lares Municipio
Maricao Municipio, PR 10 km (6 mi) NE of here earthquakes near Maricao Municipio
Las Marías Municipio, PR 12 km (8 mi) E of here earthquakes near Las Marías Municipio
Adjuntas Municipio, PR 13 km (8 mi) WNW of here earthquakes near Adjuntas Municipio
San Sebastián Municipio, PR 15 km (10 mi) SE of here earthquakes near San Sebastián Municipio
Yauco Municipio, PR 17 km (10 mi) N of here earthquakes near Yauco Municipio

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

Aftershocks so far

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

  1. 2.0 0 km W of Sabana Grande, Puerto Rico
  2. 2.3 1 km SW of Espino, Puerto Rico
  3. 2.4 10 km SE of Pole Ojea, Puerto Rico
  4. 2.7 1 km SE of Stella, Puerto Rico
  5. 2.3 3 km SW of Stella, Puerto Rico
  6. 1.8 0 km N of Guayanilla, Puerto Rico
  7. 1.8 2 km SE of Maricao, Puerto Rico
  8. 2.5 7 km NNE of Isabela, Puerto Rico
  9. 2.3 Puerto Rico region
  10. 1.8 9 km S of Guánica, Puerto Rico
  11. 1.7 3 km NNW of Sabana Grande, Puerto Rico
  12. 2.1 0 km SSW of Mayagüez, Puerto Rico
  13. 2.1 2 km SSE of Hormigueros, Puerto Rico
  14. 1.7 5 km E of Lajas, Puerto Rico
  15. 1.9 9 km NNE of Lluveras, 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.