QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

29 km W of Puerto Real, Puerto Rico

· 14 km deep · released about 72 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Cabo Rojo Municipio 33 kmRincón Municipio 33 kmHormigueros Municipio 37 kmAñasco Municipio 40 kmAguada Municipio 41 kmSan Germán Municipio 45 kmMayagüez Municipio 45 kmLajas Municipio 47 kmMoca Municipio 49 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 2.3 (md)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Cabo Rojo Municipio, 33 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2581 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 72 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 210,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 150,000× the energy of this one
  3. Around the size people start to feel M 3.0 13× the energy of this one
  4. This earthquake M 2.3 about 72 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 18.1205, -67.4618. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cabo Rojo Municipio, PR 33 km (20 mi) WNW of here earthquakes near Cabo Rojo Municipio
Rincón Municipio, PR 33 km (20 mi) SW of here earthquakes near Rincón Municipio
Hormigueros Municipio, PR 37 km (23 mi) W of here earthquakes near Hormigueros Municipio
Añasco Municipio, PR 40 km (25 mi) WSW of here earthquakes near Añasco Municipio
Aguada Municipio, PR 41 km (25 mi) SW of here earthquakes near Aguada Municipio
San Germán Municipio, PR 45 km (28 mi) W of here earthquakes near San Germán Municipio

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

Aftershocks so far

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

  1. 1.6 4 km ESE of Boquerón, Puerto Rico
  2. 2.1 20 km SW of Stella, Puerto Rico
  3. 1.9 2 km SSE of Mayagüez, Puerto Rico
  4. 2.1 7 km SE of Espino, Puerto Rico
  5. 2.6 27 km W of Rincón, Puerto Rico
  6. 1.9 4 km WNW of La Parguera, Puerto Rico
  7. 1.8 4 km ESE of Boquerón, Puerto Rico
  8. 1.6 10 km NW of Puerto Real, Puerto Rico
  9. 1.9 7 km WNW of Pole Ojea, Puerto Rico
  10. 1.5 2 km E of Mayagüez, Puerto Rico
  11. 2.3 33 km WSW of Stella, Puerto Rico
  12. 2.1 11 km NW of Puerto Real, Puerto Rico
  13. 2.1 3 km SW of Maricao, Puerto Rico
  14. 2.3 16 km SSW of Stella, Puerto Rico
  15. 2.3 26 km W 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.4 on 2017-10-01 — it released about 1,700 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.