QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2md

Earthquake near Rincón, PR

No earthquake was likely felt in Rincón in the 24 hours to 12:54 pm AST (16:54 UTC). The last one was M 3.4, 53 km (33 mi) NNE, at 9:00 pm AST on 27 October 2026, estimated intensity II (weak) in town. Every earthquake near Rincón

This page: a magnitude 3.2 earthquake was recorded 26 km (16 mi) west-northwest of Rincón, PR, at 2:47 am AST on 9 August 2025 (06:47 UTC), 6.9 km deep.

USGS: 26 km WNW of Rincón, Puerto Rico

43 km (26 mi) WNW of Mayagüez, PR · 101 km (63 mi) WNW of Ponce, PR

2:47 am AST, Aug 9, 2025 · · 6.9 km deep · released about 1,700 lb of TNT

Every earthquake near Rincón Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Rincón Municipio 26 kmAguada Municipio 32 kmAguadilla Municipio 38 kmAñasco Municipio 40 kmMoca Municipio 43 kmHormigueros Municipio 49 kmIsabela Municipio 51 kmMayagüez Municipio 55 kmCabo Rojo Municipio 55 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
2:47 am AST on 9 August 2025 ()
Where
26 km (16 mi) west-northwest of Rincón, PR · earthquakes near Rincón
Magnitude
M 3.2 (md)
Depth
6.9 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 26 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 459 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 44 km (27 mi) from the epicentre. In Rincón, 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: Rincón 26 km, intensity II · Aguada 32 km, intensity II · Aguadilla 35 km, intensity II · Mayagüez 43 km, intensity II · Rafael Hernandez 44 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 1,700 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 200,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 9,100× the energy of this one
  3. Magna, Utah 2020 M 5.7 6,500× the energy of this one
  4. This earthquake M 3.2 about 1,700 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.7× 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 4.4 on 2017-10-01 — about 72 times the energy of this one.

Before 2016, the USGS record lists 10 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.1 24 km NNW of San Antonio, Puerto Rico · 46 km NE of this epicentre
  2. 6.4 32 km NW of Aguadilla, Puerto Rico · 27 km NNE of this epicentre
  3. 6.3 6 km WNW of Aguadilla, Puerto Rico · 29 km E of this epicentre
  4. 6.3 58 km E of Punta Cana, Dominican Republic · 41 km WNW of this epicentre
  5. 6.1 15 km WNW of San Antonio, Puerto Rico · 32 km ENE 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 18.3968, -67.4888. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Rincón Municipio, PR 26 km (16 mi) ESE earthquakes near Rincón Municipio
Aguada Municipio, PR 32 km (20 mi) E earthquakes near Aguada Municipio
Aguadilla Municipio, PR 38 km (23 mi) ENE earthquakes near Aguadilla Municipio
Añasco Municipio, PR 40 km (25 mi) ESE earthquakes near Añasco Municipio
Moca Municipio, PR 43 km (27 mi) E earthquakes near Moca Municipio
Hormigueros Municipio, PR 49 km (30 mi) SE earthquakes near Hormigueros Municipio

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

Aftershocks so far

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

  1. 3.3 33 km NW of San Antonio, Puerto Rico
  2. 2.7 30 km W of Puerto Real, Puerto Rico
  3. 2.2 4 km NE of Hormigueros, Puerto Rico
  4. 3.2 56 km WSW of Stella, Puerto Rico
  5. 2.5 3 km SW of Luyando, Puerto Rico
  6. 2.3 3 km NNW of Cabo Rojo, Puerto Rico
  7. 3.7 13 km WNW of Aguadilla, Puerto Rico
  8. 3.7 48 km WSW of Stella, Puerto Rico
  9. 2.6 9 km NNW of Puerto Real, Puerto Rico
  10. 3.4 61 km ESE of Punta Cana, Dominican Republic
  11. 3.2 6 km NNW of Rincón, Puerto Rico
  12. 2.9 12 km NW of Puerto Real, Puerto Rico
  13. 3.8 60 km W of Rincón, Puerto Rico
  14. 3.5 64 km W of Stella, Puerto Rico
  15. 3.2 54 km WSW of Stella, 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.