QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

18 km WNW of Puerto Real, Puerto Rico

· 13 km deep · released about 1,100 lb of TNT

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10 km30 km60 km120 km N Cabo Rojo Municipio 24 kmHormigueros Municipio 24 kmRincón Municipio 24 kmAñasco Municipio 28 kmAguada Municipio 31 kmSan Germán Municipio 33 kmLajas Municipio 37 kmMoca Municipio 39 kmLas Marías Municipio 40 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 3.0 (md)
Depth
13 km below the surface
Felt
3 reports · strongest reported intensity IV
Nearest
Cabo Rojo Municipio, 24 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2521 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 3 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1,100 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 300,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 13,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 9,400× the energy of this one
  4. This earthquake M 3.0 about 1,100 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 18.1385, -67.3466. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cabo Rojo Municipio, PR 24 km (15 mi) NW of here earthquakes near Cabo Rojo Municipio
Hormigueros Municipio, PR 24 km (15 mi) W of here earthquakes near Hormigueros Municipio
Rincón Municipio, PR 24 km (15 mi) SSW of here earthquakes near Rincón Municipio
Añasco Municipio, PR 28 km (17 mi) SW of here earthquakes near Añasco Municipio
Aguada Municipio, PR 31 km (19 mi) SSW of here earthquakes near Aguada Municipio
San Germán Municipio, PR 33 km (20 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

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

  1. 2.4 54 km WSW of Stella, Puerto Rico
  2. 1.8 4 km N of Sabana Grande, Puerto Rico
  3. 2.7 23 km W of Puerto Real, Puerto Rico
  4. 2.4 32 km NW of Rincón, Puerto Rico
  5. 1.8 2 km NNW of La Parguera, Puerto Rico
  6. 2.0 18 km WNW of Puerto Real, Puerto Rico
  7. 1.8 6 km NE of San Sebastián, Puerto Rico
  8. 4.3 21 km WNW of Puerto Real, Puerto Rico
  9. 2.2 28 km W of Puerto Real, Puerto Rico
  10. 1.6 4 km SSE of Cabo Rojo, Puerto Rico
  11. 2.3 Puerto Rico region
  12. 1.6 3 km ESE of Sabana Grande, Puerto Rico
  13. 2.3 29 km W of Puerto Real, Puerto Rico
  14. 1.8 4 km E of Hormigueros, Puerto Rico
  15. 2.2 15 km WSW of Pole Ojea, 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 75 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.