QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1md

Earthquake near Puerto Real, PR

No earthquake was likely felt in Puerto Real in the 24 hours to 1:57 am AST (05:57 UTC). The last one was M 2.1, 10 km (6 mi) SE, at 11:57 pm AST on 8 November 2026, estimated intensity II (weak) in town. Every earthquake near Puerto Real

This page: a magnitude 3.1 earthquake was recorded 26 km (16 mi) west of Puerto Real, PR, at 8:22 pm AST on 9 February 2025 (00:22 UTC), 2.7 km deep. 1 person has reported feeling it to USGS.

USGS: 25 km W of Puerto Real, Puerto Rico

34 km (21 mi) WSW of Mayagüez, PR · 149 km (93 mi) WSW of San Juan, PR

8:22 pm AST, Feb 9, 2025 · · 2.7 km deep · released about 1,200 lb of TNT

Every earthquake near Puerto Real Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Cabo Rojo Municipio 27 kmHormigueros Municipio 34 kmRincón Municipio 36 kmAñasco Municipio 40 kmSan Germán Municipio 42 kmLajas Municipio 42 kmAguada Municipio 44 kmMayagüez Municipio 48 kmSabana Grande Municipio 51 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
8:22 pm AST on 9 February 2025 ()
Where
26 km (16 mi) west of Puerto Real, PR · earthquakes near Puerto Real
Magnitude
M 3.1 (md)
Depth
2.7 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Cabo Rojo Municipio, 27 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 565 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth, people at rest would likely notice it out to about 40 km (25 mi) from the epicentre. In Puerto Real, 26 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Likely felt in: Puerto Real 26 km, intensity II · Pole Ojea 27 km, intensity II · Mayagüez 34 km, intensity II · Rincón 37 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 1,200 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 290,000× 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 9,100× the energy of this one
  4. This earthquake M 3.1 about 1,200 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.2× more

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.

For this area

The largest earthquake within 50 km since 2016 was M 5.3 on 2020-07-03 — about 2,300 times the energy of this one.

Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:

  1. 6.3 6 km WNW of Aguadilla, Puerto Rico · 48 km NNE of this epicentre
  2. 5.2 19 km SW of Stella, Puerto Rico · 16 km NNE of this epicentre
  3. 5.1 21 km SW of Stella, Puerto Rico · 14 km NNE of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 18.0583, -67.4283. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Cabo Rojo Municipio, PR 27 km (17 mi) ESE earthquakes near Cabo Rojo Municipio
Hormigueros Municipio, PR 34 km (21 mi) ENE earthquakes near Hormigueros Municipio
Rincón Municipio, PR 36 km (23 mi) NNE earthquakes near Rincón Municipio
Añasco Municipio, PR 40 km (25 mi) NE earthquakes near Añasco Municipio
San Germán Municipio, PR 42 km (26 mi) E earthquakes near San Germán Municipio
Lajas Municipio, PR 42 km (26 mi) ESE earthquakes near Lajas Municipio

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

Aftershocks so far

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

  1. 3.3 52 km W of Stella, Puerto Rico
  2. 2.0 4 km ESE of La Parguera, Puerto Rico
  3. 2.3 5 km SE of Boquerón, Puerto Rico
  4. 2.2 2 km S of Sabana Grande, Puerto Rico
  5. 3.0 5 km SE of La Parguera, Puerto Rico
  6. 2.5 28 km SW of Stella, Puerto Rico
  7. 2.4 5 km W of Fuig, Puerto Rico
  8. 2.8 6 km ESE of La Parguera, Puerto Rico
  9. 2.7 6 km ESE of La Parguera, Puerto Rico
  10. 2.3 6 km ESE of La Parguera, Puerto Rico
  11. 2.2 1 km S of Maricao, Puerto Rico
  12. 2.3 2 km WSW of La Parguera, Puerto Rico
  13. 1.9 3 km SW of Sabana Grande, Puerto Rico
  14. 2.7 2 km W of La Parguera, Puerto Rico
  15. 3.3 36 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.

On USGS

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