QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

Earthquake near Yauco, PR

No earthquake was likely felt in Yauco in the 24 hours to 10:08 am AST (14:08 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 2.3 earthquake was recorded 7 km (5 mi) northeast of Yauco, PR, at 10:59 pm AST on 1 September 2023 (02:59 UTC), 19 km deep.

USGS: Puerto Rico region

22 km (13 mi) WNW of Ponce, PR

10:59 pm AST, Sep 1, 2023 · · 19 km deep · released about 85 lb of TNT

Every earthquake near Yauco Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yauco Municipio 6 kmGuayanilla Municipio 9 kmPeñuelas Municipio 11 kmAdjuntas Municipio 12 kmSabana Grande Municipio 15 kmMaricao Municipio 17 kmGuánica Municipio 20 kmLares Municipio 22 kmPonce Municipio 23 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
10:59 pm AST on 1 September 2023 ()
Where
7 km (5 mi) northeast of Yauco, PR · earthquakes near Yauco
Magnitude
M 2.3 (md)
Depth
19 km below the surface
Felt
no reports yet
Nearest
Yauco Municipio, 6 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1166 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 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.

Earthquakes near other towns within 30 km: Santo Domingo, Guayanilla, Magas Arriba, Peñuelas, Indios, Palomas.

How big was it?

This earthquake released about 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 85 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 1,400,000 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 18.0862, -66.8058. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Yauco Municipio, PR 6 km (3 mi) W earthquakes near Yauco Municipio
Guayanilla Municipio, PR 9 km (6 mi) S earthquakes near Guayanilla Municipio
Peñuelas Municipio, PR 11 km (7 mi) SE earthquakes near Peñuelas Municipio
Adjuntas Municipio, PR 12 km (7 mi) NNE earthquakes near Adjuntas Municipio
Sabana Grande Municipio, PR 15 km (9 mi) W earthquakes near Sabana Grande Municipio
Maricao Municipio, PR 17 km (10 mi) NW earthquakes near Maricao Municipio

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

Aftershocks so far

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

  1. 2.3 0 km ESE of Fuig, Puerto Rico
  2. 2.4 1 km S of Palmarejo, Puerto Rico
  3. 1.9 Puerto Rico region
  4. 2.7 3 km SW of Indios, Puerto Rico
  5. 2.3 1 km NE of Magas Arriba, Puerto Rico
  6. 2.2 Puerto Rico region
  7. 2.7 20 km S of Guánica, Puerto Rico
  8. 2.5 9 km S of Gu?nica, Puerto Rico
  9. 2.0 Puerto Rico region
  10. 2.4 11 km SSW of Guánica, Puerto Rico
  11. 2.6 28 km S of Tallaboa, Puerto Rico
  12. 2.6 Puerto Rico region
  13. 2.4 7 km ESE of La Parguera, Puerto Rico
  14. 2.7 1 km SSW of Magas Arriba, Puerto Rico
  15. 2.3 1 km SSW of Ponce, 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.