QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

5 km NW of Puerto Real, Puerto Rico

· 118 km deep · released about 250 lb of TNT

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10 km30 km60 km120 km N Hormigueros Municipio 12 kmCabo Rojo Municipio 13 kmSan Germán Municipio 20 kmAñasco Municipio 23 kmLajas Municipio 24 kmRincón Municipio 26 kmSabana Grande Municipio 30 kmLas Marías Municipio 30 kmAguada Municipio 31 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
118 km below the surface
Felt
no reports yet
Nearest
Hormigueros Municipio, 12 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2746 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 250 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 61,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 43,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.8× the energy of this one
  4. This earthquake M 2.6 about 250 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 18.1025, -67.2285. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hormigueros Municipio, PR 12 km (8 mi) WSW of here earthquakes near Hormigueros Municipio
Cabo Rojo Municipio, PR 13 km (8 mi) NNW of here earthquakes near Cabo Rojo Municipio
San Germán Municipio, PR 20 km (13 mi) W of here earthquakes near San Germán Municipio
Añasco Municipio, PR 23 km (14 mi) SSW of here earthquakes near Añasco Municipio
Lajas Municipio, PR 24 km (15 mi) NW of here earthquakes near Lajas Municipio
Rincón Municipio, PR 26 km (16 mi) S of here earthquakes near Rincón Municipio

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

Aftershocks so far

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

  1. 2.0 4 km SSE of Espino, Puerto Rico
  2. 1.5 3 km NNE of Mayagüez, Puerto Rico
  3. 2.3 18 km S of La Parguera, Puerto Rico
  4. 1.9 4 km NNW of Sabana Grande, Puerto Rico
  5. 1.8 9 km WNW of Puerto Real, Puerto Rico
  6. 1.8 18 km SSW of Guánica, Puerto Rico
  7. 1.9 20 km NW of Rincón, Puerto Rico
  8. 1.6 3 km SSE of Mayagüez, Puerto Rico
  9. 1.9 1 km ENE of Hormigueros, Puerto Rico
  10. 1.8 3 km SW of Las Marías, Puerto Rico
  11. 1.8 15 km NW of Puerto Real, Puerto Rico
  12. 2.1 0 km SW of Lajas, Puerto Rico
  13. 1.7 2 km NNE of Yauco, Puerto Rico
  14. 1.8 2 km N of Yauco, Puerto Rico
  15. 2.1 3 km NNE of La Playa, 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 340 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.