QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

Earthquake near Lluveras, PR

Yes: an earthquake was likely felt in Lluveras in the last 24 hours. M 2.1, 8 km (5 mi) SE of Lluveras, at 4:14 pm AST on 11 November 2026 (20:14 UTC); the estimated shaking in Lluveras was intensity II (weak). Every earthquake near Lluveras

This page: a magnitude 2.4 earthquake was recorded 6 km (4 mi) north-northeast of Lluveras, PR, at 7:53 pm AST on 14 September 2023 (23:53 UTC), 4.4 km deep.

USGS: 6 km NNE of Lluveras, Puerto Rico

28 km (18 mi) WNW of Ponce, PR

7:53 pm AST, Sep 14, 2023 · · 4.4 km deep · released about 110 lb of TNT

Every earthquake near Lluveras Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yauco Municipio 2 kmSabana Grande Municipio 8 kmMaricao Municipio 12 kmGuayanilla Municipio 12 kmAdjuntas Municipio 16 kmGuánica Municipio 16 kmPeñuelas Municipio 17 kmSan Germán Municipio 17 kmLas Marías Municipio 19 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
7:53 pm AST on 14 September 2023 ()
Where
6 km (4 mi) north-northeast of Lluveras, PR · earthquakes near Lluveras
Magnitude
M 2.4 (md)
Depth
4.4 km below the surface
Felt
no reports yet
Nearest
Yauco Municipio, 2 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1154 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 20 km (12 mi) from the epicentre. In Lluveras, 6 km away, the estimate is intensity III (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 6 km, intensity III · Guayanilla 12 km, intensity II · Magas Arriba 14 km, intensity II · San Germán 18 km, intensity II · Adjuntas 18 km, intensity II · Tallaboa Alta 19 km, intensity II · Tallaboa 20 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 110 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 140,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 99,000× the energy of this one
  3. Around the size people start to feel M 3.0 8.8× the energy of this one
  4. This earthquake M 2.4 about 110 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 1,100,000 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 · 40 km NNW 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 18.0875, -66.8747. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Yauco Municipio, PR 2 km (1 mi) E earthquakes near Yauco Municipio
Sabana Grande Municipio, PR 8 km (5 mi) W earthquakes near Sabana Grande Municipio
Maricao Municipio, PR 12 km (7 mi) NW earthquakes near Maricao Municipio
Guayanilla Municipio, PR 12 km (8 mi) SE earthquakes near Guayanilla Municipio
Adjuntas Municipio, PR 16 km (10 mi) NE earthquakes near Adjuntas Municipio
Guánica Municipio, PR 16 km (10 mi) SSW earthquakes near Guánica Municipio

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

Aftershocks so far

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

  1. 2.5 4 km NE of Sabana Grande, Puerto Rico
  2. 2.6 10 km SSE of Maria Antonia, Puerto Rico
  3. 2.1 5 km SE of Maria Antonia, Puerto Rico
  4. 2.5 5 km SSW of Indios, Puerto Rico
  5. 2.6 6 km SE of Maria Antonia, Puerto Rico
  6. 3.0 4 km SW of Guánica, Puerto Rico
  7. 1.6 Puerto Rico region
  8. 2.2 3 km SW of Guánica, Puerto Rico
  9. 2.3 2 km WSW of Guánica, Puerto Rico
  10. 2.5 2 km SSE of Maria Antonia, Puerto Rico
  11. 2.6 Puerto Rico region
  12. 2.4 Puerto Rico region
  13. 2.7 Puerto Rico region
  14. 2.4 Puerto Rico region
  15. 2.8 5 km SW 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.