QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

Earthquake near Fuig, PR

No earthquake was likely felt in Fuig in the 24 hours to 12:04 pm AST (16:04 UTC). The last one was M 2.1, 14 km (8 mi) ENE, at 4:39 pm AST on 9 November 2026, estimated intensity II (weak) in town. Every earthquake near Fuig

This page: a magnitude 1.7 earthquake was recorded 4 km (3 mi) west of Fuig, PR, at 3:51 pm AST on 31 October 2026 (19:51 UTC), 10 km deep.

USGS: 4 km W of Fuig, Puerto Rico

35 km (22 mi) W of Ponce, PR · 31 km (19 mi) SE of Mayagüez, PR

3:51 pm AST, Oct 31, 2026 · · 10 km deep · released about 9.6 lb of TNT

Every earthquake near Fuig Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Guánica Municipio 6 kmLajas Municipio 9 kmSabana Grande Municipio 10 kmYauco Municipio 15 kmSan Germán Municipio 16 kmGuayanilla Municipio 17 kmMaricao Municipio 21 kmHormigueros Municipio 23 kmCabo Rojo Municipio 24 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
3:51 pm AST on 31 October 2026 ()
Where
4 km (3 mi) west of Fuig, PR · earthquakes near Fuig
Magnitude
M 1.7 (md)
Depth
10 km below the surface
Felt
no reports yet
Nearest
Guánica Municipio, 6 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 11 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 6 km (4 mi) from the epicentre. In Fuig, 4 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: Guánica, Liborio Negron Torres, Maria Antonia, Lluveras, Palomas, Sabana Grande.

How big was it?

This earthquake released about 9.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
  3. Around the size people start to feel M 3.0 99× the energy of this one
  4. This earthquake M 1.7 about 9.6 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 6.4 on 2020-01-07 — about 12,000,000 times the energy of this one.

Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:

  1. 5.8 4 km E of Moca, Puerto Rico · 47 km NNW of this epicentre
  2. 5.2 19 km SW of Stella, Puerto Rico · 49 km WNW of this epicentre
  3. 5.1 21 km SW of Stella, Puerto Rico · 48 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 17.9903, -66.9545. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Guánica Municipio, PR 6 km (4 mi) SE earthquakes near Guánica Municipio
Lajas Municipio, PR 9 km (6 mi) W earthquakes near Lajas Municipio
Sabana Grande Municipio, PR 10 km (7 mi) N earthquakes near Sabana Grande Municipio
Yauco Municipio, PR 15 km (9 mi) NE earthquakes near Yauco Municipio
San Germán Municipio, PR 16 km (10 mi) NW earthquakes near San Germán Municipio
Guayanilla Municipio, PR 17 km (10 mi) E earthquakes near Guayanilla 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. 2.0 2 km SW of Indios, Puerto Rico
  2. 2.1 0 km NNW of Guayanilla, Puerto Rico
  3. 2.1 5 km ESE of Boquerón, Puerto Rico
  4. 2.1 2 km E of Magas Arriba, Puerto Rico
  5. 3.0 8 km SSE of Maria Antonia, Puerto Rico
  6. 2.9 2 km NNW of La Parguera, Puerto Rico
  7. 2.1 1 km W of La Parguera, Puerto Rico
  8. 3.0 1 km WSW of La Parguera, Puerto Rico
  9. 2.5 1 km NW of Magas Arriba, Puerto Rico
  10. 2.2 0 km NW of Aguilita, Puerto Rico
  11. 2.7 1 km S of Sabana Grande, Puerto Rico
  12. 2.2 1 km NW of Indios, Puerto Rico
  13. 2.1 2 km SSE of Guánica, Puerto Rico
  14. 3.5 1 km NW of Moca, Puerto Rico
  15. 2.0 5 km WSW of Guánica, 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.