QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

Earthquake near Vieques, PR

No earthquake was likely felt in Vieques in the 24 hours to 2:32 am AST (06:32 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 3.0 earthquake was recorded 23 km (14 mi) north-northeast of Vieques, PR, at 11:27 pm AST on 22 June 2017 (03:27 UTC), 19 km deep.

USGS: 22 km NNE of Vieques, Puerto Rico

38 km (24 mi) NE of San Juan, PR · 31 km (19 mi) NE of Carolina, PR

11:27 pm AST, Jun 22, 2017 · · 19 km deep · released about 860 lb of TNT

Every earthquake near Vieques Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Loíza Municipio 26 kmRío Grande Municipio 27 kmLuquillo Municipio 29 kmCarolina Municipio 32 kmFajardo Municipio 33 kmCanóvanas Municipio 34 kmSan Juan Municipio 37 kmTrujillo Alto Municipio 39 kmCataño Municipio 43 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
11:27 pm AST on 22 June 2017 ()
Where
23 km (14 mi) north-northeast of Vieques, PR · earthquakes near Vieques
Magnitude
M 3.0 (md)
Depth
19 km below the surface
Felt
no reports yet
Nearest
Loíza Municipio, 26 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3368 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 30 km (19 mi) from the epicentre. In Vieques, 23 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.

Likely felt in: Loíza 24 km, intensity II · Río Grande 27 km, intensity II · Luquillo 29 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 860 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 6.7 390,000× 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 12,000× the energy of this one
  4. This earthquake M 3.0 about 860 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 since 1900 lists no earthquake of M5 or more within 50 km.

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 18.6233, -65.7845. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Loíza Municipio, PR 26 km (16 mi) SW earthquakes near Loíza Municipio
Río Grande Municipio, PR 27 km (17 mi) S earthquakes near Río Grande Municipio
Luquillo Municipio, PR 29 km (18 mi) SSE earthquakes near Luquillo Municipio
Carolina Municipio, PR 32 km (20 mi) SW earthquakes near Carolina Municipio
Fajardo Municipio, PR 33 km (21 mi) SE earthquakes near Fajardo Municipio
Canóvanas Municipio, PR 34 km (21 mi) SSW earthquakes near Canóvanas Municipio

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

Aftershocks so far

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

  1. 1.9 30 km NNE of Luquillo, Puerto Rico
  2. 2.8 23 km NNE of Playa Fortuna, Puerto Rico
  3. 2.0 16 km W of Culebra, Puerto Rico
  4. 2.5 18 km NNE of Playa Fortuna, Puerto Rico
  5. 2.6 22 km NNE of Playa Fortuna, Puerto Rico
  6. 2.4 24 km NNE of Luquillo, Puerto Rico
  7. 2.0 29 km NNE of Luquillo, Puerto Rico
  8. 2.7 30 km N of Loíza, Puerto Rico
  9. 2.4 34 km NE of Vieques, Puerto Rico
  10. 1.7 20 km NNE of Luquillo, Puerto Rico
  11. 3.4 67 km NNE of Suárez, Puerto Rico
  12. 2.5 25 km NNE of Luquillo, Puerto Rico
  13. 2.5 53 km NNE of Luquillo, Puerto Rico
  14. 2.3 51 km NNW of Culebra, Puerto Rico
  15. 2.6 1 km N of Pueblito del Rio, 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.