QuakeIndex

Earthquake · reviewed by a seismologist

M 3.6md

Earthquake near Galateo, PR

No earthquake was likely felt in Galateo in the 24 hours to 4:43 pm AST (20:43 UTC). The last one was M 4.8, 86 km (54 mi) WSW, at 9:19 am AST on 18 September 2026, estimated intensity III (weak) in town; 86 felt reports to USGS. Every earthquake near Galateo

This page: a magnitude 3.6 earthquake was recorded in Galateo, PR, at 3:41 pm AST on 14 May 2025 (19:41 UTC), 67 km deep. 31 people have reported feeling it to USGS.

USGS: 1 km SSE of Galateo, Puerto Rico

10 km (6 mi) WSW of Bayamón, PR

3:41 pm AST, May 14, 2025 · · 67 km deep · released about 4.5 tons of TNT

Every earthquake near Galateo Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Toa Alta Municipio 2 kmNaranjito Municipio 7 kmBayamón Municipio 9 kmCorozal Municipio 9 kmVega Alta Municipio 13 kmToa Baja Municipio 13 kmDorado Municipio 14 kmComerío Municipio 14 kmGuaynabo Municipio 15 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
3:41 pm AST on 14 May 2025 ()
Where
in Galateo, PR · earthquakes near Galateo
Magnitude
M 3.6 (md)
Depth
67 km below the surface
Felt
31 reports · strongest reported intensity III
Measured shaking
intensity II (ShakeMap)
Nearest
Toa Alta Municipio, 2 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 474 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 28 km (17 mi) from the epicentre. 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: Corozal 7 km, intensity II · Bayamón 11 km, intensity II · Dorado 12 km, intensity II · San Antonio 12 km, intensity II · Levittown 13 km, intensity II · Guaynabo 15 km, intensity II · Cataño 17 km, intensity II · Vega Baja 18 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 4.5 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.7 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 38,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 1,700× the energy of this one
  3. Magna, Utah 2020 M 5.7 1,200× the energy of this one
  4. This earthquake M 3.6 about 4.5 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 9.4× 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 4.6 on 2019-03-12 — about 27 times the energy of this one.

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

  1. 5.8 12 km N of Garrochales, Puerto Rico · 41 km NW of this epicentre
  2. 5.1 3 km W of Aguas Buenas, Puerto Rico · 16 km SE of this epicentre
  3. 5.0 3 km N of Brenas, Puerto Rico · 19 km NNW 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 18.3505, -66.2521. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Toa Alta Municipio, PR 2 km (1 mi) NNE earthquakes near Toa Alta Municipio
Naranjito Municipio, PR 7 km (4 mi) S earthquakes near Naranjito Municipio
Bayamón Municipio, PR 9 km (5 mi) E earthquakes near Bayamón Municipio
Corozal Municipio, PR 9 km (6 mi) WSW earthquakes near Corozal Municipio
Vega Alta Municipio, PR 13 km (8 mi) NW earthquakes near Vega Alta Municipio
Toa Baja Municipio, PR 13 km (8 mi) NNE earthquakes near Toa Baja Municipio

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

Aftershocks so far

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

  1. 3.0 7 km NNE of Dorado, Puerto Rico
  2. 2.0 2 km SSW of Las Ochenta, Puerto Rico
  3. 3.6 1 km ESE of Carolina, Puerto Rico
  4. 2.8 4 km N of San Antonio, Puerto Rico
  5. 2.0 0 km ENE of Santa Isabel, Puerto Rico
  6. 2.3 3 km N of Playita Cortada, Puerto Rico
  7. 2.2 1 km ESE of Santa Isabel, Puerto Rico
  8. 3.0 34 km N of Brenas, Puerto Rico
  9. 2.1 1 km ENE of Jauca, Puerto Rico
  10. 2.3 2 km ENE of Jauca, Puerto Rico
  11. 2.6 1 km WNW of Parcelas Peñuelas, Puerto Rico
  12. 2.5 1 km WSW of Parcelas Peñuelas, Puerto Rico
  13. 2.5 1 km WSW of Parcelas Peñuelas, Puerto Rico
  14. 2.4 1 km NNW of Parcelas Peñuelas, Puerto Rico
  15. 1.8 1 km E of Mariano Colón, 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.