QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

Earthquake near Vieques, PR

No earthquake was likely felt in Vieques in the 24 hours to 10:40 am AST (14:40 UTC). The last one was M 4.1, 74 km (46 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 Vieques

This page: a magnitude 2.5 earthquake was recorded 27 km (17 mi) north-northeast of Vieques, PR, at 5:49 am AST on 3 April 2026 (09:49 UTC), 28 km deep. 1 person has reported feeling it to USGS.

USGS: 27 km NNE of Vieques, Puerto Rico

42 km (26 mi) NE of San Juan, PR · 36 km (22 mi) NE of Carolina, PR

5:49 am AST, Apr 3, 2026 · · 28 km deep · released about 170 lb of TNT

Every earthquake near Vieques Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Loíza Municipio 30 kmRío Grande Municipio 32 kmLuquillo Municipio 33 kmFajardo Municipio 36 kmCarolina Municipio 36 kmCanóvanas Municipio 39 kmSan Juan Municipio 41 kmTrujillo Alto Municipio 44 kmCataño Municipio 47 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
5:49 am AST on 3 April 2026 ()
Where
27 km (17 mi) north-northeast of Vieques, PR · earthquakes near Vieques
Magnitude
M 2.5 (md)
Depth
28 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Loíza Municipio, 30 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 222 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 Vieques, 27 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: Suárez, Loíza.

How big was it?

This earthquake released about 170 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 89,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 63,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.6× the energy of this one
  4. This earthquake M 2.5 about 170 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 4.2 on 2023-12-25 — about 320 times the energy of this one.

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

  1. 5.0 73 km NNE of Vieques, Puerto Rico · 47 km NE 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 18.6607, -65.7667. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Loíza Municipio, PR 30 km (19 mi) SW earthquakes near Loíza Municipio
Río Grande Municipio, PR 32 km (20 mi) S earthquakes near Río Grande Municipio
Luquillo Municipio, PR 33 km (21 mi) S earthquakes near Luquillo Municipio
Fajardo Municipio, PR 36 km (22 mi) SSE earthquakes near Fajardo Municipio
Carolina Municipio, PR 36 km (23 mi) SW earthquakes near Carolina Municipio
Canóvanas Municipio, PR 39 km (24 mi) SSW earthquakes near Canóvanas Municipio

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

Aftershocks so far

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

  1. 3.3 76 km NNE of Vieques, Puerto Rico
  2. 3.2 7 km ENE of Fajardo, Puerto Rico
  3. 3.1 2 km SW of Hato Candal, Puerto Rico
  4. 3.2 31 km NNE of Vieques, Puerto Rico
  5. 2.9 29 km N of San Juan, Puerto Rico
  6. 3.2 72 km NNE of Vieques, Puerto Rico
  7. 3.2 44 km NNE of Vieques, Puerto Rico
  8. 2.8 70 km NNE of Vieques, Puerto Rico
  9. 3.3 50 km N of Loíza, Puerto Rico
  10. 3.2 66 km N of Culebra, Puerto Rico
  11. 2.8 52 km NNE of Vieques, Puerto Rico
  12. 2.8 15 km NNE of Dorado, Puerto Rico
  13. 3.2 39 km N of Culebra, Puerto Rico
  14. 3.7 65 km NNE of Luquillo, Puerto Rico
  15. 3.1 4 km N 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.