QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

Earthquake near Rafael Capo, PR

No earthquake was likely felt in Rafael Capo in the 24 hours to 11:37 pm AST (03:37 UTC). The last one was M 3.4, 50 km (31 mi) NW, at 9:00 pm AST on 27 October 2026, estimated intensity II (weak) in town. Every earthquake near Rafael Capo

This page: a magnitude 2.6 earthquake was recorded in Rafael Capo, PR, at 11:41 pm AST on 20 April 2025 (03:41 UTC), 19 km deep.

USGS: 1 km SSE of Rafael Capo, Puerto Rico

8 km (5 mi) SW of Arecibo, PR · 75 km (47 mi) W of San Juan, PR

11:41 pm AST, Apr 20, 2025 · · 19 km deep · released about 250 lb of TNT

Every earthquake near Rafael Capo Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hatillo Municipio 5 kmCamuy Municipio 11 kmArecibo Municipio 11 kmUtuado Municipio 16 kmLares Municipio 17 kmQuebradillas Municipio 18 kmSan Sebastián Municipio 22 kmFlorida Municipio 23 kmAdjuntas Municipio 24 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
11:41 pm AST on 20 April 2025 ()
Where
in Rafael Capo, PR · earthquakes near Rafael Capo
Magnitude
M 2.6 (md)
Depth
19 km below the surface
Felt
no reports yet
Nearest
Hatillo Municipio, 5 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 570 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 15 km (9 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: Arecibo 10 km, intensity II · Hatillo 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 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 6.4 on 2020-01-07 — about 480,000 times the energy of this one.

Before 2016, the USGS record lists 4 earthquakes of M5 or more within 50 km:

  1. 6.3 6 km WNW of Aguadilla, Puerto Rico · 46 km W of this epicentre
  2. 5.8 12 km N of Garrochales, Puerto Rico · 29 km NE of this epicentre
  3. 5.8 4 km E of Moca, Puerto Rico · 31 km W of this epicentre
  4. 5.0 3 km N of Brenas, Puerto Rico · 47 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 18.3983, -66.7763. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Hatillo Municipio, PR 5 km (3 mi) NNW earthquakes near Hatillo Municipio
Camuy Municipio, PR 11 km (7 mi) WNW earthquakes near Camuy Municipio
Arecibo Municipio, PR 11 km (7 mi) ENE earthquakes near Arecibo Municipio
Utuado Municipio, PR 16 km (10 mi) SSE earthquakes near Utuado Municipio
Lares Municipio, PR 17 km (10 mi) SW earthquakes near Lares Municipio
Quebradillas Municipio, PR 18 km (11 mi) WNW earthquakes near Quebradillas Municipio

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

Aftershocks so far

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

  1. 2.4 2 km NNE of Tallaboa, Puerto Rico
  2. 2.3 1 km ESE of Guánica, Puerto Rico
  3. 2.2 2 km ESE of Yauco, Puerto Rico
  4. 3.2 23 km N of Isabela, Puerto Rico
  5. 1.9 1 km SE of Yauco, Puerto Rico
  6. 2.4 3 km WSW of Indios, Puerto Rico
  7. 2.3 3 km SW of Indios, Puerto Rico
  8. 2.2 4 km WSW of Ponce, Puerto Rico
  9. 2.4 1 km NE of Guayanilla, Puerto Rico
  10. 2.4 1 km WNW of Indios, Puerto Rico
  11. 3.1 2 km SW of Indios, Puerto Rico
  12. 2.3 2 km W of Indios, Puerto Rico
  13. 2.4 6 km E of Maricao, Puerto Rico
  14. 2.5 3 km WSW of Indios, Puerto Rico
  15. 3.2 6 km N of Lluveras, 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.