QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

Earthquake near Piedra Gorda, PR

No earthquake was likely felt in Piedra Gorda in the 24 hours to 12:55 pm AST (16:55 UTC). The last one was M 3.4, 42 km (26 mi) NNW, at 9:00 pm AST on 27 October 2026, estimated intensity II (weak) in town. Every earthquake near Piedra Gorda

This page: a magnitude 2.6 earthquake was recorded 2 km (1 mi) west-northwest of Piedra Gorda, PR, at 11:10 pm AST on 7 May 2025 (03:10 UTC), 18 km deep.

USGS: 2 km WNW of Piedra Gorda, Puerto Rico

89 km (55 mi) W of San Juan, PR · 18 km (11 mi) W of Arecibo, PR

11:10 pm AST, May 7, 2025 · · 18 km deep · released about 250 lb of TNT

Every earthquake near Piedra Gorda Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Quebradillas Municipio 3 kmCamuy Municipio 5 kmHatillo Municipio 11 kmIsabela Municipio 12 kmSan Sebastián Municipio 14 kmLares Municipio 19 kmMoca Municipio 20 kmArecibo Municipio 24 kmLas Marías Municipio 25 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
11:10 pm AST on 7 May 2025 ()
Where
2 km (1 mi) west-northwest of Piedra Gorda, PR · earthquakes near Piedra Gorda
Magnitude
M 2.6 (md)
Depth
18 km below the surface
Felt
no reports yet
Nearest
Quebradillas Municipio, 3 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 553 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 16 km (10 mi) from the epicentre. In Piedra Gorda, 2 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: Quebradillas 5 km, intensity II · Hatillo 10 km, intensity II · Isabela 14 km, intensity II · San Sebastián 15 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 250 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 61,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 43,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.8× the energy of this one
  4. This earthquake M 2.6 about 250 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 31,000 times the energy of this one.

Before 2016, the USGS record lists 7 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.1 24 km NNW of San Antonio, Puerto Rico · 41 km NW of this epicentre
  2. 6.3 6 km WNW of Aguadilla, Puerto Rico · 32 km W of this epicentre
  3. 6.1 15 km WNW of San Antonio, Puerto Rico · 36 km WNW of this epicentre
  4. 6.1 18 km NNW of San Antonio, Puerto Rico · 36 km NW of this epicentre
  5. 5.8 12 km N of Garrochales, Puerto Rico · 38 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 18.4423, -66.9063. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Quebradillas Municipio, PR 3 km (2 mi) NW earthquakes near Quebradillas Municipio
Camuy Municipio, PR 5 km (3 mi) E earthquakes near Camuy Municipio
Hatillo Municipio, PR 11 km (7 mi) E earthquakes near Hatillo Municipio
Isabela Municipio, PR 12 km (8 mi) WNW earthquakes near Isabela Municipio
San Sebastián Municipio, PR 14 km (9 mi) SSW earthquakes near San Sebastián Municipio
Lares Municipio, PR 19 km (12 mi) SSE earthquakes near Lares Municipio

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

Aftershocks so far

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

  1. 2.0 5 km E of Las Marías, Puerto Rico
  2. 3.1 19 km N of Arecibo, Puerto Rico
  3. 2.6 2 km SW of Lluveras, Puerto Rico
  4. 2.9 4 km SW of Maricao, Puerto Rico
  5. 2.1 2 km ESE of Lluveras, Puerto Rico
  6. 2.3 1 km WSW of Guayanilla, Puerto Rico
  7. 2.8 4 km SW of La Playa, Puerto Rico
  8. 2.4 3 km N of Hormigueros, Puerto Rico
  9. 2.0 3 km SW of Utuado, Puerto Rico
  10. 2.5 3 km NNE of Mayagüez, Puerto Rico
  11. 2.6 6 km SSW of Stella, Puerto Rico
  12. 2.0 1 km SE of Yauco, Puerto Rico
  13. 2.7 5 km WSW of Las Marías, Puerto Rico
  14. 2.3 1 km E of Magas Arriba, Puerto Rico
  15. 2.0 0 km E of Magas Arriba, 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.