QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

Earthquake near Candelaria, PR

No earthquake was likely felt in Candelaria in the 24 hours to 10:17 am AST (14:17 UTC). The last one was M 4.8, 93 km (58 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 Candelaria

This page: a magnitude 3.0 earthquake was recorded in Candelaria, PR, at 1:41 am AST on 27 October 2024 (05:41 UTC), 66 km deep. 1 person has reported feeling it to USGS.

USGS: 0 km WNW of Candelaria, Puerto Rico

6 km (4 mi) WNW of Bayamón, PR

1:41 am AST, Oct 27, 2024 · · 66 km deep · released about 830 lb of TNT

Every earthquake near Candelaria Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Toa Alta Municipio 6 kmToa Baja Municipio 6 kmBayamón Municipio 8 kmCataño Municipio 8 kmDorado Municipio 9 kmGuaynabo Municipio 13 kmVega Alta Municipio 13 kmNaranjito Municipio 14 kmSan Juan 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
1:41 am AST on 27 October 2024 ()
Where
in Candelaria, PR · earthquakes near Candelaria
Magnitude
M 3.0 (md)
Depth
66 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Toa Alta Municipio, 6 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 745 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. 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: Candelaria Arenas, Mucarabones, Campanilla, Toa Alta, Ingenio, Sabana Seca.

How big was it?

This earthquake released about 830 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 410,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 18,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 13,000× the energy of this one
  4. This earthquake M 3.0 about 830 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 4.4 on 2018-12-09 — about 140 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 · 41 km WNW of this epicentre
  2. 5.1 3 km W of Aguas Buenas, Puerto Rico · 19 km SSE of this epicentre
  3. 5.0 3 km N of Brenas, Puerto Rico · 17 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 18.4068, -66.2175. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Toa Alta Municipio, PR 6 km (3 mi) SSW earthquakes near Toa Alta Municipio
Toa Baja Municipio, PR 6 km (4 mi) NNE earthquakes near Toa Baja Municipio
Bayamón Municipio, PR 8 km (5 mi) SE earthquakes near Bayamón Municipio
Cataño Municipio, PR 8 km (5 mi) ENE earthquakes near Cataño Municipio
Dorado Municipio, PR 9 km (6 mi) NNW earthquakes near Dorado Municipio
Guaynabo Municipio, PR 13 km (8 mi) ESE earthquakes near Guaynabo Municipio

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

Aftershocks so far

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

  1. 3.0 27 km NNE of Brenas, Puerto Rico
  2. 2.1 1 km NW of Humacao, Puerto Rico
  3. 3.4 4 km SE of G. L. Garcia, Puerto Rico
  4. 2.2 4 km NW of Orocovis, Puerto Rico
  5. 2.8 4 km WNW of Candelero Arriba, Puerto Rico
  6. 2.0 3 km E of Santa Clara, Puerto Rico
  7. 3.2 34 km NNE of San Juan, Puerto Rico
  8. 3.0 11 km NNW of San Juan, Puerto Rico
  9. 2.8 19 km NNE of San Juan, Puerto Rico
  10. 2.2 2 km E of Cayey, Puerto Rico
  11. 3.0 23 km N of Tierras Nuevas Poniente, Puerto Rico
  12. 2.0 4 km NNW of Jobos, Puerto Rico
  13. 2.5 5 km NNW of Jagual, Puerto Rico
  14. 3.3 2 km NNW of La Luisa, Puerto Rico
  15. 1.8 4 km NNW of Yaurel, 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.