QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

Earthquake near Naranjito, PR

No earthquake was likely felt in Naranjito in the 24 hours to 12:54 pm AST (16:54 UTC). The last one was M 4.8, 84 km (52 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 Naranjito

This page: a magnitude 2.3 earthquake was recorded 6 km (4 mi) east-northeast of Naranjito, PR, at 12:34 pm AST on 21 December 2025 (16:34 UTC), 14 km deep.

USGS: 6 km ENE of Naranjito, Puerto Rico

7 km (5 mi) SSW of Bayamón, PR

12:34 pm AST, Dec 21, 2025 · · 14 km deep · released about 72 lb of TNT

Every earthquake near Naranjito Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Bayamón Municipio 4 kmNaranjito Municipio 7 kmToa Alta Municipio 8 kmGuaynabo Municipio 8 kmAguas Buenas Municipio 9 kmComerío Municipio 11 kmCorozal Municipio 15 kmCataño Municipio 15 kmToa Baja 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
12:34 pm AST on 21 December 2025 ()
Where
6 km (4 mi) east-northeast of Naranjito, PR · earthquakes near Naranjito
Magnitude
M 2.3 (md)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Bayamón Municipio, 4 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 325 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 13 km (8 mi) from the epicentre. In Naranjito, 6 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: Guaynabo 9 km, intensity II · Bayamón 10 km, intensity II · Sumidero 13 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 72 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 210,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 150,000× the energy of this one
  3. Around the size people start to feel M 3.0 13× the energy of this one
  4. This earthquake M 2.3 about 72 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 4.6 on 2019-03-12 — about 3,300 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 · 48 km NW of this epicentre
  2. 5.1 3 km W of Aguas Buenas, Puerto Rico · 9 km SE of this epicentre
  3. 5.0 3 km N of Brenas, Puerto Rico · 26 km NW 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 18.3182, -66.1892. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Bayamón Municipio, PR 4 km (3 mi) NNE earthquakes near Bayamón Municipio
Naranjito Municipio, PR 7 km (5 mi) WSW earthquakes near Naranjito Municipio
Toa Alta Municipio, PR 8 km (5 mi) NW earthquakes near Toa Alta Municipio
Guaynabo Municipio, PR 8 km (5 mi) ENE earthquakes near Guaynabo Municipio
Aguas Buenas Municipio, PR 9 km (6 mi) SE earthquakes near Aguas Buenas Municipio
Comerío Municipio, PR 11 km (7 mi) SSW earthquakes near Comerío Municipio

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

Aftershocks so far

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

  1. 2.0 0 km WSW of Aguas Buenas, Puerto Rico
  2. 1.9 0 km SW of G. L. Garcia, Puerto Rico
  3. 2.1 3 km NNW of Palomas, Puerto Rico
  4. 2.3 5 km W of Campo Rico, Puerto Rico
  5. 2.7 16 km N of Brenas, Puerto Rico
  6. 2.8 8 km NE of Vieques, Puerto Rico
  7. 1.6 1 km SW of G. L. Garcia, Puerto Rico
  8. 1.8 7 km ESE of G. L. Garcia, Puerto Rico
  9. 2.4 3 km SSE of Salinas, Puerto Rico
  10. 1.7 1 km WSW of G. L. Garcia, Puerto Rico
  11. 1.7 2 km NW of Las Ollas, Puerto Rico
  12. 2.0 1 km SSE of Cidra, Puerto Rico
  13. 1.9 3 km WNW of Orocovis, Puerto Rico
  14. 2.4 1 km WSW of Las Ochenta, Puerto Rico
  15. 1.9 3 km SSW of Salinas, 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.