QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

Earthquake near Bajadero, PR

No earthquake was likely felt in Bajadero in the 24 hours to 12:51 pm AST (16:51 UTC). The last one was M 3.4, 55 km (34 mi) NW, at 9:00 pm AST on 27 October 2026, estimated intensity II (weak) in town. Every earthquake near Bajadero

This page: a magnitude 2.6 earthquake was recorded 7 km (4 mi) south of Bajadero, PR, at 5:48 pm AST on 4 December 2025 (21:48 UTC), 19 km deep.

USGS: 6 km S of Bajadero, Puerto Rico

11 km (7 mi) SSE of Arecibo, PR · 66 km (41 mi) W of San Juan, PR

5:48 pm AST, Dec 4, 2025 · · 19 km deep · released about 280 lb of TNT

10 km30 km60 km120 km N Arecibo Municipio 8 kmUtuado Municipio 11 kmFlorida Municipio 13 kmHatillo Municipio 14 kmBarceloneta Municipio 18 kmCiales Municipio 20 kmCamuy Municipio 20 kmJayuya Municipio 20 kmLares Municipio 21 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
5:48 pm AST on 4 December 2025 ()
Where
7 km (4 mi) south of Bajadero, PR · earthquakes near Bajadero
Magnitude
M 2.6 (md)
Depth
19 km below the surface
Felt
no reports yet
Nearest
Arecibo Municipio, 8 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 342 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. In Bajadero, 7 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: Arecibo 12 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 280 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 53,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 38,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.3× the energy of this one
  4. This earthquake M 2.6 about 280 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 420,000 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 · 26 km NNE of this epicentre
  2. 5.8 4 km E of Moca, Puerto Rico · 40 km W of this epicentre
  3. 5.0 3 km N of Brenas, Puerto Rico · 40 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 18.3653, -66.6905. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Arecibo Municipio, PR 8 km (5 mi) NNE earthquakes near Arecibo Municipio
Utuado Municipio, PR 11 km (7 mi) S earthquakes near Utuado Municipio
Florida Municipio, PR 13 km (8 mi) E earthquakes near Florida Municipio
Hatillo Municipio, PR 14 km (9 mi) NW earthquakes near Hatillo Municipio
Barceloneta Municipio, PR 18 km (11 mi) NE earthquakes near Barceloneta Municipio
Ciales Municipio, PR 20 km (12 mi) ESE earthquakes near Ciales Municipio

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

Aftershocks so far

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

  1. 1.9 2 km WSW of Indios, Puerto Rico
  2. 2.3 4 km S of Maricao, Puerto Rico
  3. 2.8 2 km SSW of Magas Arriba, Puerto Rico
  4. 1.7 2 km NE of Lluveras, Puerto Rico
  5. 1.9 1 km N of Guayanilla, Puerto Rico
  6. 2.8 23 km NNW of Camuy, Puerto Rico
  7. 2.4 2 km N of Indios, Puerto Rico
  8. 2.5 4 km WNW of Fuig, Puerto Rico
  9. 2.1 2 km NW of Tallaboa, Puerto Rico
  10. 2.2 2 km W of Tallaboa, Puerto Rico
  11. 2.0 1 km ESE of Magas Arriba, Puerto Rico
  12. 2.3 4 km SSW of Indios, Puerto Rico
  13. 2.2 2 km SSW of Magas Arriba, Puerto Rico
  14. 1.9 3 km SW of Indios, Puerto Rico
  15. 2.9 4 km NW of Coamo, 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.