QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6Md

3 km SSW of Lares, Puerto Rico

· 7.0 km deep · released about 240 lb of TNT

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10 km30 km60 km120 km N Lares Municipio 3 kmLas Marías Municipio 10 kmMaricao Municipio 11 kmSan Sebastián Municipio 11 kmAdjuntas Municipio 17 kmUtuado Municipio 20 kmYauco Municipio 20 kmSabana Grande Municipio 21 kmCamuy Municipio 21 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 2.6 (Md)
Depth
7.0 km below the surface
Felt
no reports yet
Nearest
Lares Municipio, 3 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3722 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 240 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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 18.2612, -66.8902. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lares Municipio, PR 3 km (2 mi) SW of here earthquakes near Lares Municipio
Las Marías Municipio, PR 10 km (6 mi) ENE of here earthquakes near Las Marías Municipio
Maricao Municipio, PR 11 km (7 mi) NNE of here earthquakes near Maricao Municipio
San Sebastián Municipio, PR 11 km (7 mi) SE of here earthquakes near San Sebastián Municipio
Adjuntas Municipio, PR 17 km (10 mi) WNW of here earthquakes near Adjuntas Municipio
Utuado Municipio, PR 20 km (12 mi) W of here earthquakes near Utuado Municipio

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

Aftershocks so far

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

  1. 1.7 1 km NW of Pole Ojea, Puerto Rico
  2. 2.1 10 km N of Arecibo, Puerto Rico
  3. 2.8 9 km N of Arecibo, Puerto Rico
  4. 1.8 3 km SW of Puerto Real, Puerto Rico
  5. 3.4 8 km NNW of Arecibo, Puerto Rico
  6. 2.5 4 km SSE of La Playa, Puerto Rico
  7. 2.3 5 km WNW of Rincón, Puerto Rico
  8. 1.7 4 km E of Boquerón, Puerto Rico
  9. 2.1 4 km S of La Playa, Puerto Rico
  10. 2.2 5 km S of La Playa, Puerto Rico
  11. 2.5 4 km S of La Playa, Puerto Rico
  12. 1.6 4 km E of Tallaboa, Puerto Rico
  13. 2.9 5 km SSW of La Playa, Puerto Rico
  14. 2.5 7 km SSE of Guánica, Puerto Rico
  15. 2.3 6 km NW of Orocovis, 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.