QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

Earthquake near Yauco, PR

No earthquake was likely felt in Yauco in the 24 hours to 3:33 pm AST (19:33 UTC). The last one was M 2.1, 6 km (4 mi) ESE, at 4:39 pm AST on 9 November 2026, estimated intensity II (weak) in town. Every earthquake near Yauco

This page: a magnitude 2.8 earthquake was recorded 7 km (4 mi) south of Yauco, PR, at 4:36 am AST on 4 November 2023 (08:36 UTC), 14 km deep.

USGS: Puerto Rico region

24 km (15 mi) W of Ponce, PR

4:36 am AST, Nov 4, 2023 · · 14 km deep · released about 510 lb of TNT

Every earthquake near Yauco Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Guayanilla Municipio 6 kmGuánica Municipio 9 kmYauco Municipio 12 kmPeñuelas Municipio 14 kmSabana Grande Municipio 16 kmLajas Municipio 20 kmMaricao Municipio 24 kmAdjuntas Municipio 25 kmSan Germán Municipio 25 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
4:36 am AST on 4 November 2023 ()
Where
7 km (4 mi) south of Yauco, PR · earthquakes near Yauco
Magnitude
M 2.8 (md)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Guayanilla Municipio, 6 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1103 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 24 km (15 mi) from the epicentre. In Yauco, 7 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: Yauco 7 km, intensity II · Guayanilla 8 km, intensity II · Magas Arriba 9 km, intensity II · Tallaboa 14 km, intensity II · Tallaboa Alta 18 km, intensity II · Ponce 24 km, intensity II · San Germán 24 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 510 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 30,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 21,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.9× the energy of this one
  4. This earthquake M 2.8 about 510 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 in our catalogue was M 6.4 on 2020-01-07 — about 230,000 times the energy of this one.

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 17.9753, -66.8470. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Guayanilla Municipio, PR 6 km (4 mi) ENE earthquakes near Guayanilla Municipio
Guánica Municipio, PR 9 km (5 mi) WSW earthquakes near Guánica Municipio
Yauco Municipio, PR 12 km (8 mi) N earthquakes near Yauco Municipio
Peñuelas Municipio, PR 14 km (9 mi) ENE earthquakes near Peñuelas Municipio
Sabana Grande Municipio, PR 16 km (10 mi) NW earthquakes near Sabana Grande Municipio
Lajas Municipio, PR 20 km (13 mi) W earthquakes near Lajas Municipio

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

Aftershocks so far

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

  1. 2.4 2 km SE of Capitanejo, Puerto Rico
  2. 2.5 2 km E of Magas Arriba, Puerto Rico
  3. 3.3 Puerto Rico region
  4. 2.4 2 km NNW of Guayanilla, Puerto Rico
  5. 2.3 2 km N of Guayanilla, Puerto Rico
  6. 2.6 1 km NNW of Guayanilla, Puerto Rico
  7. 1.8 4 km E of Ponce, Puerto Rico
  8. 2.7 2 km WSW of Indios, Puerto Rico
  9. 1.9 5 km WSW of Guánica, Puerto Rico
  10. 1.9 1 km E of Indios, Puerto Rico
  11. 2.2 2 km SE of Palomas, Puerto Rico
  12. 2.0 2 km SSE of La Parguera, Puerto Rico
  13. 2.9 2 km SSW of Santo Domingo, Puerto Rico
  14. 2.6 8 km S of Guánica, Puerto Rico
  15. 2.5 3 km S of Maria Antonia, 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.