QuakeIndex

Earthquake · reviewed by a seismologist

M 3.1md

Earthquake near Hato Candal, PR

No earthquake was likely felt in Hato Candal in the 24 hours to 2:31 am AST (06:31 UTC). The last one was M 4.1, 66 km (41 mi) SE, at 5:44 am AST on 28 October 2026, estimated intensity II (weak) in town; 5 felt reports to USGS. Every earthquake near Hato Candal

This page: a magnitude 3.1 earthquake was recorded 3 km (2 mi) northwest of Hato Candal, PR, at 11:58 pm AST on 5 April 2025 (03:58 UTC), 113 km deep. 1 person has reported feeling it to USGS.

USGS: 2 km NW of Hato Candal, Puerto Rico

27 km (17 mi) E of San Juan, PR · 19 km (12 mi) E of Carolina, PR

11:58 pm AST, Apr 5, 2025 · · 113 km deep · released about 1,500 lb of TNT

Every earthquake near Hato Candal Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Río Grande Municipio 2 kmLuquillo Municipio 10 kmCanóvanas Municipio 11 kmLoíza Municipio 16 kmCarolina Municipio 17 kmNaguabo Municipio 21 kmJuncos Municipio 22 kmTrujillo Alto Municipio 22 kmFajardo Municipio 23 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
11:58 pm AST on 5 April 2025 ()
Where
3 km (2 mi) northwest of Hato Candal, PR · earthquakes near Hato Candal
Magnitude
M 3.1 (md)
Depth
113 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Río Grande Municipio, 2 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 585 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 Hato Candal, 3 km away, the estimate is intensity I (not felt). 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: Río Grande, Palmer, Vieques, Bartolo, La Dolores, Playa Fortuna.

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 4.1 on 2019-05-02 — about 29 times the energy of this one.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.1 3 km W of Aguas Buenas, Puerto Rico · 38 km WSW 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 18.3922, -65.8037. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Río Grande Municipio, PR 2 km (1 mi) SSE earthquakes near Río Grande Municipio
Luquillo Municipio, PR 10 km (6 mi) ESE earthquakes near Luquillo Municipio
Canóvanas Municipio, PR 11 km (7 mi) SW earthquakes near Canóvanas Municipio
Loíza Municipio, PR 16 km (10 mi) WNW earthquakes near Loíza Municipio
Carolina Municipio, PR 17 km (11 mi) W earthquakes near Carolina Municipio
Naguabo Municipio, PR 21 km (13 mi) SSE earthquakes near Naguabo Municipio

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

Aftershocks so far

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

  1. 2.1 18 km WSW of Esperanza, Puerto Rico
  2. 3.3 16 km WSW of Esperanza, Puerto Rico
  3. 2.5 6 km WNW of Aguas Buenas, Puerto Rico
  4. 2.7 3 km SSE of San Lorenzo, Puerto Rico
  5. 3.5 12 km NNE of Fajardo, Puerto Rico
  6. 2.2 3 km SSE of G. L. Garcia, Puerto Rico
  7. 2.8 2 km ENE of Parcelas Nuevas, Puerto Rico
  8. 1.8 5 km W of Rosa Sanchez, Puerto Rico
  9. 2.0 4 km SW of Jagual, Puerto Rico
  10. 3.2 24 km NE of Luquillo, Puerto Rico
  11. 2.1 2 km N of Santa Clara, Puerto Rico
  12. 2.9 18 km ESE of El Negro, Puerto Rico
  13. 2.8 16 km ESE of El Negro, Puerto Rico
  14. 3.5 9 km NNW of San Juan, Puerto Rico
  15. 3.2 8 km NE of Dorado, 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.