QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

Earthquake near San Juan, PR

No earthquake was likely felt in San Juan in the 24 hours to 1:02 pm AST (17:02 UTC). The last one was M 4.1, 99 km (62 mi) SE, at 5:44 am AST on 28 October 2026, estimated intensity II (weak) in town; 5 felt reports to USGS. Every earthquake near San Juan

This page: a magnitude 3.0 earthquake was recorded 41 km (26 mi) southwest of San Juan, PR, at 12:06 am AST on 11 May 2025 (04:06 UTC), 38 km deep. 1 person has reported feeling it to USGS.

USGS: 4 km NW of Orocovis, Puerto Rico

42 km (26 mi) WSW of San Juan, PR · 31 km (19 mi) WSW of Bayamón, PR

12:06 am AST, May 11, 2025 · · 38 km deep · released about 1,100 lb of TNT

Every earthquake near San Juan Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Orocovis Municipio 4 kmMorovis Municipio 7 kmCiales Municipio 11 kmCorozal Municipio 12 kmBarranquitas Municipio 13 kmVillalba Municipio 14 kmCoamo Municipio 18 kmJayuya Municipio 18 kmNaranjito Municipio 18 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
12:06 am AST on 11 May 2025 ()
Where
41 km (26 mi) southwest of San Juan, PR · earthquakes near San Juan
Magnitude
M 3.0 (md)
Depth
38 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Orocovis Municipio, 4 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 549 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 11 km (7 mi) from the epicentre. In San Juan, 41 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: Ciales 11 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 1,100 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 300,000× 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 9,400× the energy of this one
  4. This earthquake M 3.0 about 1,100 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 5.6 on 2020-01-07 — about 6,700 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 · 38 km NNW of this epicentre
  2. 5.1 3 km W of Aguas Buenas, Puerto Rico · 30 km E of this epicentre
  3. 5.0 3 km N of Brenas, Puerto Rico · 29 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 18.2520, -66.4230. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Orocovis Municipio, PR 4 km (2 mi) SSW earthquakes near Orocovis Municipio
Morovis Municipio, PR 7 km (5 mi) N earthquakes near Morovis Municipio
Ciales Municipio, PR 11 km (7 mi) WNW earthquakes near Ciales Municipio
Corozal Municipio, PR 12 km (7 mi) ENE earthquakes near Corozal Municipio
Barranquitas Municipio, PR 13 km (8 mi) ESE earthquakes near Barranquitas Municipio
Villalba Municipio, PR 14 km (9 mi) SSW earthquakes near Villalba Municipio

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

Aftershocks so far

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

  1. 2.5 1 km WSW of Parcelas Peñuelas, Puerto Rico
  2. 2.4 1 km NNW of Parcelas Peñuelas, Puerto Rico
  3. 1.8 1 km E of Mariano Colón, Puerto Rico
  4. 2.2 1 km WNW of Parcelas Peñuelas, Puerto Rico
  5. 2.6 1 km W of Parcelas Peñuelas, Puerto Rico
  6. 2.5 0 km NNE of Jauca, Puerto Rico
  7. 2.1 2 km ENE of Río Cañas Abajo, Puerto Rico
  8. 1.7 7 km NNE of Yaurel, Puerto Rico
  9. 2.4 3 km SSW of Tallaboa, Puerto Rico
  10. 2.6 2 km N of Indios, Puerto Rico
  11. 2.9 2 km NW of Tallaboa, Puerto Rico
  12. 2.8 2 km NNW of Santa Isabel, Puerto Rico
  13. 2.0 8 km ENE of Jayuya, Puerto Rico
  14. 3.1 2 km NNW of Tallaboa, Puerto Rico
  15. 1.5 2 km ESE of Indios, 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.