QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

Earthquake near Mayagüez, PR

No earthquake was likely felt in Mayagüez in the 24 hours to 4:29 pm AST (20:29 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 2.7 earthquake was recorded 8 km (5 mi) west of Mayagüez, PR, at 10:48 am AST on 19 May 2025 (14:48 UTC), 11 km deep.

USGS: 8 km W of Mayagüez, Puerto Rico

8 km (5 mi) W of Mayagüez, PR · 124 km (77 mi) W of San Juan, PR

10:48 am AST, May 19, 2025 · · 11 km deep · released about 360 lb of TNT

Every earthquake near Mayagüez Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hormigueros Municipio 12 kmAñasco Municipio 14 kmRincón Municipio 17 kmAguada Municipio 21 kmSan Germán Municipio 21 kmCabo Rojo Municipio 22 kmMoca Municipio 25 kmLas Marías Municipio 26 kmMaricao Municipio 30 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
10:48 am AST on 19 May 2025 ()
Where
8 km (5 mi) west of Mayagüez, PR · earthquakes near Mayagüez
Magnitude
M 2.7 (md)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Hormigueros Municipio, 12 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 541 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 23 km (14 mi) from the epicentre. In Mayagüez, 8 km away, the estimate is intensity III (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: Mayagüez 8 km, intensity III · Puerto Real 13 km, intensity II · Rincón 17 km, intensity II · Aguada 21 km, intensity II · San Germán 22 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 360 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 42,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 30,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.6× the energy of this one
  4. This earthquake M 2.7 about 360 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.

For this area

The largest earthquake within 50 km since 2016 was M 5.9 on 2020-01-11 — about 59,000 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. 6.3 6 km WNW of Aguadilla, Puerto Rico · 28 km N of this epicentre
  2. 6.1 15 km WNW of San Antonio, Puerto Rico · 40 km N of this epicentre
  3. 6.1 18 km NNW of San Antonio, Puerto Rico · 50 km N of this epicentre
  4. 5.8 4 km E of Moca, Puerto Rico · 28 km NNE of this epicentre
  5. 5.2 19 km SW of Stella, Puerto Rico · 16 km W 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 18.1905, -67.2175. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Hormigueros Municipio, PR 12 km (8 mi) ESE earthquakes near Hormigueros Municipio
Añasco Municipio, PR 14 km (9 mi) NE earthquakes near Añasco Municipio
Rincón Municipio, PR 17 km (10 mi) NNW earthquakes near Rincón Municipio
Aguada Municipio, PR 21 km (13 mi) N earthquakes near Aguada Municipio
San Germán Municipio, PR 21 km (13 mi) ESE earthquakes near San Germán Municipio
Cabo Rojo Municipio, PR 22 km (14 mi) S earthquakes near Cabo Rojo Municipio

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

Aftershocks so far

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

  1. 2.5 3 km SSW of Guánica, Puerto Rico
  2. 2.3 1 km WSW of Guayanilla, Puerto Rico
  3. 2.8 2 km SSW of Indios, Puerto Rico
  4. 2.2 4 km SSE of Guánica, Puerto Rico
  5. 2.5 16 km WNW of Rincón, Puerto Rico
  6. 2.8 4 km SW of La Playa, Puerto Rico
  7. 2.5 0 km W of Indios, Puerto Rico
  8. 2.4 3 km N of Hormigueros, Puerto Rico
  9. 2.5 3 km NNE of Mayagüez, Puerto Rico
  10. 1.8 6 km SW of Guánica, Puerto Rico
  11. 2.2 3 km ESE of La Parguera, Puerto Rico
  12. 2.6 6 km SSW of Stella, Puerto Rico
  13. 2.0 1 km SE of Yauco, Puerto Rico
  14. 2.1 1 km W of Indios, Puerto Rico
  15. 2.7 5 km WSW of Las Marías, 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.