QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1md

Earthquake near Celada, PR

No earthquake was likely felt in Celada in the 24 hours to 8:28 am AST (12:28 UTC). The last one was M 4.1, 75 km (47 mi) ESE, at 5:44 am AST on 28 October 2026, estimated intensity II (weak) in town; 5 felt reports to USGS. Every earthquake near Celada

This page: a magnitude 3.1 earthquake was recorded 3 km (2 mi) east of Celada, PR, at 5:36 am AST on 3 February 2023 (09:36 UTC), 103 km deep.

USGS: 3 km E of Celada, Puerto Rico

20 km (12 mi) SE of San Juan, PR · 12 km (7 mi) ENE of Caguas, PR

5:36 am AST, Feb 3, 2023 · · 103 km deep · released about 1,500 lb of TNT

Every earthquake near Celada Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Gurabo Municipio 5 kmJuncos Municipio 6 kmCanóvanas Municipio 8 kmTrujillo Alto Municipio 10 kmLas Piedras Municipio 12 kmCaguas Municipio 14 kmCarolina Municipio 14 kmSan Lorenzo Municipio 15 kmRío Grande Municipio 19 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
5:36 am AST on 3 February 2023 ()
Where
3 km (2 mi) east of Celada, PR · earthquakes near Celada
Magnitude
M 3.1 (md)
Depth
103 km below the surface
Felt
no reports yet
Nearest
Gurabo Municipio, 5 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1377 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 Celada, 3 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: Gurabo, Juncos, Benitez, El Mangó, Campo Rico, Pueblito del Rio.

How big was it?

This earthquake released about 1,500 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.1 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 230,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 10,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 7,200× the energy of this one
  4. This earthquake M 3.1 about 1,500 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.6× more

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 2016-12-05 — about 160 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 · 21 km W of this epicentre
  2. 5.0 3 km N of Brenas, Puerto Rico · 50 km WNW 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 18.2730, -65.9377. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Gurabo Municipio, PR 5 km (3 mi) W earthquakes near Gurabo Municipio
Juncos Municipio, PR 6 km (4 mi) SSE earthquakes near Juncos Municipio
Canóvanas Municipio, PR 8 km (5 mi) NE earthquakes near Canóvanas Municipio
Trujillo Alto Municipio, PR 10 km (6 mi) NW earthquakes near Trujillo Alto Municipio
Las Piedras Municipio, PR 12 km (7 mi) SE earthquakes near Las Piedras Municipio
Caguas Municipio, PR 14 km (9 mi) WSW earthquakes near Caguas Municipio

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

Aftershocks so far

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

  1. 2.8 4 km SE of G. L. Garcia, Puerto Rico
  2. 2.9 0 km NNW of Cataño, Puerto Rico
  3. 3.1 2 km SE of Cayey, Puerto Rico
  4. 3.4 1 km W of Punta Santiago, Puerto Rico
  5. 2.9 0 km S of Vázquez, Puerto Rico
  6. 3.3 7 km NNE of Dorado, Puerto Rico
  7. 2.6 5 km SE of G. L. Garcia, Puerto Rico
  8. 2.2 3 km E of Bayamon, Puerto Rico
  9. 2.7 Puerto Rico region
  10. 2.9 1 km W of Punta Santiago, Puerto Rico
  11. 2.8 Puerto Rico region
  12. 3.2 10 km NNW of Levittown, Puerto Rico
  13. 2.9 9 km SSE of Bajandas, Puerto Rico
  14. 2.6 19 km SW of Esperanza, Puerto Rico
  15. 3.1 6 km ENE of San Juan, 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.