QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

16 km W of Puerto Real, Puerto Rico

· 137 km deep · released about 240 lb of TNT

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10 km30 km60 km120 km N Cabo Rojo Municipio 19 kmHormigueros Municipio 25 kmRincón Municipio 31 kmAñasco Municipio 33 kmSan Germán Municipio 33 kmLajas Municipio 34 kmAguada Municipio 37 kmSabana Grande Municipio 42 kmLas Marías Municipio 42 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
137 km below the surface
Felt
no reports yet
Nearest
Cabo Rojo Municipio, 19 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2891 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 18.0751, -67.3443. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cabo Rojo Municipio, PR 19 km (12 mi) WNW of here earthquakes near Cabo Rojo Municipio
Hormigueros Municipio, PR 25 km (16 mi) WSW of here earthquakes near Hormigueros Municipio
Rincón Municipio, PR 31 km (19 mi) SSW of here earthquakes near Rincón Municipio
Añasco Municipio, PR 33 km (20 mi) SW of here earthquakes near Añasco Municipio
San Germán Municipio, PR 33 km (20 mi) W of here earthquakes near San Germán Municipio
Lajas Municipio, PR 34 km (21 mi) WNW of here earthquakes near Lajas 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. 2.5 16 km W of Puerto Real, Puerto Rico
  2. 1.9 7 km E of Pole Ojea, Puerto Rico
  3. 1.6 1 km NNE of Palmarejo, Puerto Rico
  4. 2.0 13 km NW of Puerto Real, Puerto Rico
  5. 1.7 1 km WSW of Lluveras, Puerto Rico
  6. 2.0 5 km SSW of Guánica, Puerto Rico
  7. 2.4 4 km S of La Playa, Puerto Rico
  8. 1.6 2 km NE of Boquerón, Puerto Rico
  9. 1.8 6 km W of Maricao, Puerto Rico
  10. 1.6 4 km W of Liborio Negron Torres, Puerto Rico
  11. 1.9 5 km SW of Fuig, Puerto Rico
  12. 2.5 18 km WNW of Rincón, Puerto Rico
  13. 1.8 8 km SE of La Parguera, Puerto Rico
  14. 2.2 3 km ESE of Las Marías, Puerto Rico
  15. 2.3 8 km SW of Guánica, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.3 on 2017-10-14 — it released about 350 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.