QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

Earthquake near Yauco, PR

Yes: an earthquake was likely felt in Yauco in the last 24 hours. M 2.1, 5 km (3 mi) S of Yauco, at 4:14 pm AST on 11 November 2026 (20:14 UTC); the estimated shaking in Yauco was intensity II (weak). Every earthquake near Yauco

This page: a magnitude 2.1 earthquake was recorded 4 km (2 mi) northeast of Yauco, PR, at 4:36 pm AST on 7 August 2023 (20:36 UTC), 20 km deep.

USGS: 3 km NE of Yauco, Puerto Rico

22 km (13 mi) WNW of Ponce, PR

4:36 pm AST, Aug 7, 2023 · · 20 km deep · released about 40 lb of TNT

Every earthquake near Yauco Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yauco Municipio 5 kmGuayanilla Municipio 6 kmPeñuelas Municipio 10 kmSabana Grande Municipio 14 kmAdjuntas Municipio 16 kmGuánica Municipio 16 kmMaricao Municipio 18 kmPonce Municipio 23 kmSan Germán 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
4:36 pm AST on 7 August 2023 ()
Where
4 km (2 mi) northeast of Yauco, PR · earthquakes near Yauco
Magnitude
M 2.1 (md)
Depth
20 km below the surface
Felt
no reports yet
Nearest
Yauco Municipio, 5 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1192 days ago

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

At this magnitude and depth it was probably too small to be felt, even directly above it. In Yauco, 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: Guayanilla, Indios, Magas Arriba, Palomas, Santo Domingo, Lluveras.

How big was it?

This earthquake released about 40 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 380,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 270,000× the energy of this one
  3. Around the size people start to feel M 3.0 24× the energy of this one
  4. This earthquake M 2.1 about 40 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 3,000,000 times the energy of this one.

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

  1. 5.8 4 km E of Moca, Puerto Rico · 47 km NW 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 18.0542, -66.8210. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Yauco Municipio, PR 5 km (3 mi) NW earthquakes near Yauco Municipio
Guayanilla Municipio, PR 6 km (4 mi) SSE earthquakes near Guayanilla Municipio
Peñuelas Municipio, PR 10 km (6 mi) ESE earthquakes near Peñuelas Municipio
Sabana Grande Municipio, PR 14 km (9 mi) WNW earthquakes near Sabana Grande Municipio
Adjuntas Municipio, PR 16 km (10 mi) NNE earthquakes near Adjuntas Municipio
Guánica Municipio, PR 16 km (10 mi) SW earthquakes near Guánica Municipio

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

Aftershocks so far

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

  1. 1.9 11 km SSE of Maria Antonia, Puerto Rico
  2. 2.4 6 km SSE of Guánica, Puerto Rico
  3. 1.9 3 km NW of Fuig, Puerto Rico
  4. 2.6 2 km SW of Fuig, Puerto Rico
  5. 2.3 7 km SW of Guánica, Puerto Rico
  6. 2.6 4 km SSE of La Parguera, Puerto Rico
  7. 2.4 3 km WSW of Santo Domingo, Puerto Rico
  8. 2.3 4 km SSW of Indios, Puerto Rico
  9. 2.2 0 km E of Magas Arriba, Puerto Rico
  10. 2.8 10 km W of Adjuntas, Puerto Rico
  11. 2.9 2 km ESE of Magas Arriba, Puerto Rico
  12. 2.6 3 km NNW of Guayanilla, Puerto Rico
  13. 2.5 9 km SSW of Guánica, Puerto Rico
  14. 2.6 9 km SSW of Guánica, Puerto Rico
  15. 2.0 4 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.