QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

Earthquake near Liborio Negron Torres, PR

Yes: an earthquake was likely felt in Liborio Negron Torres in the last 24 hours. M 2.4, 12 km (7 mi) S of Liborio Negron Torres, at 3:43 pm AST on 11 November 2026 (19:43 UTC); the estimated shaking in Liborio Negron Torres was intensity II (weak). Every earthquake near Liborio Negron Torres

This page: a magnitude 3.0 earthquake was recorded 5 km (3 mi) southwest of Liborio Negron Torres, PR, at 4:05 am AST on 18 July 2024 (08:05 UTC), 15 km deep. 1 person has reported feeling it to USGS.

USGS: 4 km SW of Liborio Negron Torres, Puerto Rico

37 km (23 mi) W of Ponce, PR · 28 km (17 mi) SE of Mayagüez, PR

4:05 am AST, Jul 18, 2024 · · 15 km deep · released about 920 lb of TNT

Every earthquake near Liborio Negron Torres Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lajas Municipio 8 kmSabana Grande Municipio 9 kmGuánica Municipio 9 kmSan Germán Municipio 13 kmYauco Municipio 15 kmMaricao Municipio 19 kmGuayanilla Municipio 19 kmHormigueros Municipio 20 kmCabo Rojo Municipio 22 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
4:05 am AST on 18 July 2024 ()
Where
5 km (3 mi) southwest of Liborio Negron Torres, PR · earthquakes near Liborio Negron Torres
Magnitude
M 3.0 (md)
Depth
15 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Lajas Municipio, 8 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 847 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 33 km (21 mi) from the epicentre. In Liborio Negron Torres, 5 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: San Germán 11 km, intensity II · Yauco 13 km, intensity II · Guayanilla 19 km, intensity II · Magas Arriba 22 km, intensity II · Pole Ojea 23 km, intensity II · Puerto Real 24 km, intensity II · Tallaboa 27 km, intensity II · Mayagüez 27 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 920 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 370,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 12,000× the energy of this one
  4. This earthquake M 3.0 about 920 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 130,000 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 · 44 km NNW of this epicentre
  2. 5.2 19 km SW of Stella, Puerto Rico · 46 km WNW of this epicentre
  3. 5.1 21 km SW of Stella, Puerto Rico · 46 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 18.0110, -66.9743. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Lajas Municipio, PR 8 km (5 mi) WSW earthquakes near Lajas Municipio
Sabana Grande Municipio, PR 9 km (5 mi) NNE earthquakes near Sabana Grande Municipio
Guánica Municipio, PR 9 km (5 mi) SE earthquakes near Guánica Municipio
San Germán Municipio, PR 13 km (8 mi) NNW earthquakes near San Germán Municipio
Yauco Municipio, PR 15 km (9 mi) NE earthquakes near Yauco Municipio
Maricao Municipio, PR 19 km (12 mi) NNE earthquakes near Maricao 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. 2.4 2 km WSW of Guánica, Puerto Rico
  2. 2.8 1 km ESE of Palmarejo, Puerto Rico
  3. 2.8 3 km NW of Mayagüez, Puerto Rico
  4. 2.1 2 km ESE of Puerto Real, Puerto Rico
  5. 2.8 5 km ESE of La Parguera, Puerto Rico
  6. 2.7 6 km WSW of Guánica, Puerto Rico
  7. 2.6 2 km ENE of Magas Arriba, Puerto Rico
  8. 2.4 10 km SSE of Indios, Puerto Rico
  9. 2.4 4 km SE of Tallaboa, Puerto Rico
  10. 2.1 0 km NE of Guayanilla, Puerto Rico
  11. 2.8 1 km NNE of Guayanilla, Puerto Rico
  12. 2.3 7 km ESE of Mayagüez, Puerto Rico
  13. 2.4 2 km W of Fuig, Puerto Rico
  14. 2.0 5 km N of Yauco, Puerto Rico
  15. 2.2 1 km NE of Indios, 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.