QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1md

Earthquake near Mayagüez, PR

No earthquake was likely felt in Mayagüez in the 24 hours to 5:06 pm AST (21:06 UTC). The last one was M 2.9, 25 km (15 mi) SSE, at 3:17 am AST on 8 November 2026, estimated intensity II (weak) in town. Every earthquake near Mayagüez

This page: a magnitude 3.1 earthquake was recorded 46 km (28 mi) west-northwest of Mayagüez, PR, at 12:54 am AST on 13 October 2025 (04:54 UTC), 14 km deep.

USGS: 32 km W of Rincón, Puerto Rico

46 km (28 mi) WNW of Mayagüez, PR · 105 km (65 mi) WNW of Ponce, PR

12:54 am AST, Oct 13, 2025 · · 14 km deep · released about 1,200 lb of TNT

Every earthquake near Mayagüez Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Rincón Municipio 32 kmAguada Municipio 40 kmMayagüez Municipio 43 kmAñasco Municipio 45 kmAguadilla Municipio 47 kmHormigueros Municipio 51 kmMoca Municipio 51 kmCabo Rojo Municipio 53 kmSan Germán Municipio 59 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
12:54 am AST on 13 October 2025 ()
Where
46 km (28 mi) west-northwest of Mayagüez, PR · earthquakes near Mayagüez
Magnitude
M 3.1 (md)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 32 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 395 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 38 km (24 mi) from the epicentre. In Mayagüez, 46 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 33 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 6.7 280,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 12,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 8,800× 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 1.3× 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 99 times the energy of this one.

Before 2016, the USGS record lists 6 earthquakes of M5 or more within 50 km; the five largest:

  1. 6.4 32 km NW of Aguadilla, Puerto Rico · 38 km NNE of this epicentre
  2. 6.3 6 km WNW of Aguadilla, Puerto Rico · 39 km ENE of this epicentre
  3. 6.3 58 km E of Punta Cana, Dominican Republic · 38 km WNW of this epicentre
  4. 6.1 15 km WNW of San Antonio, Puerto Rico · 43 km NE of this epicentre
  5. 5.2 19 km SW of Stella, Puerto Rico · 24 km SE 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 18.3127, -67.5573. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Rincón Municipio, PR 32 km (20 mi) E earthquakes near Rincón Municipio
Aguada Municipio, PR 40 km (25 mi) E earthquakes near Aguada Municipio
Mayagüez Municipio, PR 43 km (27 mi) SW earthquakes near Mayagüez Municipio
Añasco Municipio, PR 45 km (28 mi) E earthquakes near Añasco Municipio
Aguadilla Municipio, PR 47 km (29 mi) ENE earthquakes near Aguadilla Municipio
Hormigueros Municipio, PR 51 km (31 mi) ESE earthquakes near Hormigueros Municipio

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

Aftershocks so far

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

  1. 3.4 52 km W of Puerto Real, Puerto Rico
  2. 2.3 10 km W of Puerto Real, Puerto Rico
  3. 2.5 20 km W of Rincón, Puerto Rico
  4. 3.3 32 km WNW of Rincón, Puerto Rico
  5. 2.5 2 km NNW of Las Marias, Puerto Rico
  6. 2.4 12 km SW of La Playa, Puerto Rico
  7. 2.4 2 km N of La Playa, Puerto Rico
  8. 2.7 1 km SSW of Mayagüez, Puerto Rico
  9. 2.3 18 km NW of Puerto Real, Puerto Rico
  10. 2.9 30 km W of Rincón, Puerto Rico
  11. 2.1 4 km S of Espino, Puerto Rico
  12. 3.1 29 km WNW of San Antonio, Puerto Rico
  13. 2.7 25 km NW of Rincón, Puerto Rico
  14. 3.4 65 km NW of Rincón, Puerto Rico
  15. 3.3 17 km SW 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.