QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

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 2.0 earthquake was recorded in Liborio Negron Torres, PR, at 4:18 am AST on 29 June 2017 (08:18 UTC), 23 km deep.

USGS: 0 km NW of Liborio Negron Torres, Puerto Rico

35 km (22 mi) W of Ponce, PR · 27 km (17 mi) SE of Mayagüez, PR

4:18 am AST, Jun 29, 2017 · · 23 km deep · released about 31 lb of TNT

10 km30 km60 km120 km N Sabana Grande Municipio 4 kmYauco Municipio 10 kmGuánica Municipio 11 kmSan Germán Municipio 12 kmLajas Municipio 12 kmMaricao Municipio 14 kmGuayanilla Municipio 16 kmHormigueros Municipio 20 kmLas Marías Municipio 20 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
4:18 am AST on 29 June 2017 ()
Where
in Liborio Negron Torres, PR · earthquakes near Liborio Negron Torres
Magnitude
M 2.0 (md)
Depth
23 km below the surface
Felt
no reports yet
Nearest
Sabana Grande Municipio, 4 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3422 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. 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: Sabana Grande, Lluveras, Fuig, Palomas, Guánica, Maria Antonia.

How big was it?

This earthquake released about 31 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 480,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 340,000× the energy of this one
  3. Around the size people start to feel M 3.0 31× the energy of this one
  4. This earthquake M 2.0 about 31 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

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 · 41 km NNW of this epicentre
  2. 5.2 19 km SW of Stella, Puerto Rico · 47 km WNW of this epicentre
  3. 5.1 21 km SW of Stella, Puerto Rico · 47 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 18.0468, -66.9476. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Sabana Grande Municipio, PR 4 km (3 mi) N earthquakes near Sabana Grande Municipio
Yauco Municipio, PR 10 km (6 mi) ENE earthquakes near Yauco Municipio
Guánica Municipio, PR 11 km (7 mi) SSE earthquakes near Guánica Municipio
San Germán Municipio, PR 12 km (7 mi) NW earthquakes near San Germán Municipio
Lajas Municipio, PR 12 km (8 mi) SW earthquakes near Lajas Municipio
Maricao Municipio, PR 14 km (9 mi) N 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. 1.9 22 km S of Guánica, Puerto Rico
  2. 2.0 3 km NW of Sabana Grande, Puerto Rico
  3. 1.7 7 km N of Yauco, Puerto Rico
  4. 1.6 6 km NNE of Lluveras, Puerto Rico
  5. 1.6 6 km SSW of Maricao, Puerto Rico
  6. 2.6 4 km SW of Maricao, Puerto Rico
  7. 1.8 8 km NNW of Yauco, Puerto Rico
  8. 2.0 6 km NW of Sabana Grande, Puerto Rico
  9. 1.8 7 km NNW of Yauco, Puerto Rico
  10. 1.8 6 km NNW of Yauco, Puerto Rico
  11. 2.7 3 km SW of Maricao, Puerto Rico
  12. 2.1 16 km S of Ponce, Puerto Rico
  13. 2.0 7 km SSW of Tallaboa, Puerto Rico
  14. 2.2 3 km SSE of Boquerón, Puerto Rico
  15. 2.7 2 km ESE of Magas Arriba, 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.