QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

Earthquake near Naranjito, PR

No earthquake was likely felt in Naranjito in the 24 hours to 12:52 pm AST (16:52 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 2.5 earthquake was recorded 7 km (5 mi) east-southeast of Naranjito, PR, at 4:35 pm AST on 6 December 2023 (20:35 UTC), 59 km deep.

USGS: 7 km ESE of Naranjito, Puerto Rico

19 km (12 mi) SW of San Juan, PR · 12 km (7 mi) S of Bayamón, PR

4:35 pm AST, Dec 6, 2023 · · 59 km deep · released about 190 lb of TNT

Every earthquake near Naranjito Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Aguas Buenas Municipio 6 kmComerío Municipio 7 kmNaranjito Municipio 8 kmBayamón Municipio 8 kmGuaynabo Municipio 10 kmCidra Municipio 12 kmToa Alta Municipio 12 kmCaguas Municipio 15 kmCorozal Municipio 16 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
4:35 pm AST on 6 December 2023 ()
Where
7 km (5 mi) east-southeast of Naranjito, PR · earthquakes near Naranjito
Magnitude
M 2.5 (md)
Depth
59 km below the surface
Felt
no reports yet
Nearest
Aguas Buenas Municipio, 6 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1071 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 it was probably too small to be felt, even directly above it. In Naranjito, 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.

Earthquakes near other towns within 30 km: Comerío, Aguas Buenas, Sumidero, Santa Clara, Pájaros, Cidra.

How big was it?

This earthquake released about 190 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 80,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 57,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.1× the energy of this one
  4. This earthquake M 2.5 about 190 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 1,300 times the energy of this one.

Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:

  1. 5.1 3 km W of Aguas Buenas, Puerto Rico · 5 km ESE of this epicentre
  2. 5.0 3 km N of Brenas, Puerto Rico · 30 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 18.2767, -66.1795. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Aguas Buenas Municipio, PR 6 km (4 mi) ESE earthquakes near Aguas Buenas Municipio
Comerío Municipio, PR 7 km (4 mi) SW earthquakes near Comerío Municipio
Naranjito Municipio, PR 8 km (5 mi) W earthquakes near Naranjito Municipio
Bayamón Municipio, PR 8 km (5 mi) N earthquakes near Bayamón Municipio
Guaynabo Municipio, PR 10 km (6 mi) NE earthquakes near Guaynabo Municipio
Cidra Municipio, PR 12 km (7 mi) S earthquakes near Cidra Municipio

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

Aftershocks so far

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

  1. 2.6 3 km SSE of Salinas, Puerto Rico
  2. 1.8 2 km E of Cayey, Puerto Rico
  3. 2.2 7 km SSE of Salinas, Puerto Rico
  4. 1.5 5 km SE of Cayey, Puerto Rico
  5. 2.8 4 km WSW of Central Aguirre, Puerto Rico
  6. 2.1 4 km NW of Orocovis, Puerto Rico
  7. 3.2 2 km SSE of Coto Norte, Puerto Rico
  8. 2.6 4 km NW of Orocovis, Puerto Rico
  9. 3.0 1 km SSE of Corozal, Puerto Rico
  10. 2.2 5 km SSE of Salinas, Puerto Rico
  11. 2.0 6 km SSE of Salinas, Puerto Rico
  12. 2.5 3 km ESE of Orocovis, Puerto Rico
  13. 2.2 6 km SSE of Salinas, Puerto Rico
  14. 2.8 5 km S of Punta Santiago, Puerto Rico
  15. 2.0 5 km SSE 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.