QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6Md

Earthquake near Candelaria Arenas, PR

No earthquake was likely felt in Candelaria Arenas in the 24 hours to 6:13 pm AST (22:13 UTC). The last one was M 4.8, 94 km (58 mi) SW, at 9:19 am AST on 18 September 2026, estimated intensity III (weak) in town; 86 felt reports to USGS. Every earthquake near Candelaria Arenas

This page: a magnitude 2.6 earthquake was recorded in Candelaria Arenas, PR, at 4:13 am AST on 3 April 2017 (08:13 UTC), 21 km deep.

USGS: 1 km N of Candelaria Arenas, Puerto Rico

8 km (5 mi) NW of Bayamón, PR

4:13 am AST, Apr 3, 2017 · · 21 km deep · released about 240 lb of TNT

Every earthquake near Candelaria Arenas Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Toa Baja Municipio 4 kmDorado Municipio 7 kmCataño Municipio 7 kmToa Alta Municipio 8 kmBayamón Municipio 10 kmVega Alta Municipio 13 kmGuaynabo Municipio 14 kmSan Juan Municipio 16 kmNaranjito 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
4:13 am AST on 3 April 2017 ()
Where
in Candelaria Arenas, PR · earthquakes near Candelaria Arenas
Magnitude
M 2.6 (Md)
Depth
21 km below the surface
Felt
no reports yet
Nearest
Toa Baja Municipio, 4 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3509 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 11 km (7 mi) from the epicentre. 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: Levittown 4 km, intensity II · Dorado 6 km, intensity II · Bayamón 7 km, intensity II · San Antonio 9 km, intensity II · Cataño 10 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 240 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 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

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 · 40 km WNW of this epicentre
  2. 5.1 3 km W of Aguas Buenas, Puerto Rico · 21 km SSE of this epicentre
  3. 5.0 3 km N of Brenas, Puerto Rico · 15 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 18.4286, -66.2163. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Toa Baja Municipio, PR 4 km (2 mi) NE earthquakes near Toa Baja Municipio
Dorado Municipio, PR 7 km (4 mi) NW earthquakes near Dorado Municipio
Cataño Municipio, PR 7 km (5 mi) ENE earthquakes near Cataño Municipio
Toa Alta Municipio, PR 8 km (5 mi) SSW earthquakes near Toa Alta Municipio
Bayamón Municipio, PR 10 km (6 mi) SSE earthquakes near Bayamón Municipio
Vega Alta Municipio, PR 13 km (8 mi) W earthquakes near Vega Alta Municipio

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

Aftershocks so far

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

  1. 3.1 1 km NW of Bayamón, Puerto Rico
  2. 2.3 1 km S of Río Lajas, Puerto Rico
  3. 2.6 21 km NNE of Dorado, Puerto Rico
  4. 3.1 5 km ESE of Cataño, Puerto Rico
  5. 2.9 3 km N of Trujillo Alto, Puerto Rico
  6. 2.7 20 km N of Brenas, Puerto Rico
  7. 2.8 33 km N of Tierras Nuevas Poniente, Puerto Rico
  8. 2.9 7 km NNW of Martorell, Puerto Rico
  9. 1.6 6 km WNW of Palomas, Puerto Rico
  10. 1.9 2 km NW of Aibonito, Puerto Rico
  11. 2.5 3 km E of La Plena, Puerto Rico
  12. 2.3 0 km N of Pastos, Puerto Rico
  13. 2.7 42 km N of Brenas, Puerto Rico
  14. 2.6 27 km NNW of Loíza, Puerto Rico
  15. 3.1 1 km SW of San Antonio, 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.