QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

Earthquake near La Parguera, PR

Yes: an earthquake was likely felt in La Parguera in the last 24 hours. M 2.4, 13 km (8 mi) ESE of La Parguera, at 3:43 pm AST on 11 November 2026 (19:43 UTC); the estimated shaking in La Parguera was intensity II (weak). Every earthquake near La Parguera

This page: a magnitude 1.6 earthquake was recorded 10 km (6 mi) south of La Parguera, PR, at 2:56 am AST on 20 July 2018 (06:56 UTC), 2.0 km deep.

USGS: 10 km SSE of La Parguera, Puerto Rico

45 km (28 mi) WSW of Ponce, PR · 37 km (23 mi) SSE of Mayagüez, PR

2:56 am AST, Jul 20, 2018 · · 2.0 km deep · released about 6.6 lb of TNT

Every earthquake near La Parguera Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lajas Municipio 11 kmGuánica Municipio 13 kmCabo Rojo Municipio 21 kmSabana Grande Municipio 24 kmSan Germán Municipio 25 kmGuayanilla Municipio 28 kmYauco Municipio 29 kmHormigueros Municipio 29 kmMaricao Municipio 34 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
2:56 am AST on 20 July 2018 ()
Where
10 km (6 mi) south of La Parguera, PR · earthquakes near La Parguera
Magnitude
M 1.6 (md)
Depth
2.0 km below the surface
Felt
no reports yet
Nearest
Lajas Municipio, 11 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3037 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 11 km (7 mi) from the epicentre. In La Parguera, 10 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: Guánica, Fuig, Maria Antonia, Palmarejo, Lajas, Pole Ojea.

How big was it?

This earthquake released about 6.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.6 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 2 earthquakes of M5 or more within 50 km:

  1. 5.2 19 km SW of Stella, Puerto Rico · 50 km NW of this epicentre
  2. 5.1 21 km SW of Stella, Puerto Rico · 48 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 17.8833, -67.0275. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Lajas Municipio, PR 11 km (7 mi) N earthquakes near Lajas Municipio
Guánica Municipio, PR 13 km (8 mi) ENE earthquakes near Guánica Municipio
Cabo Rojo Municipio, PR 21 km (13 mi) NW earthquakes near Cabo Rojo Municipio
Sabana Grande Municipio, PR 24 km (15 mi) NNE earthquakes near Sabana Grande Municipio
San Germán Municipio, PR 25 km (16 mi) N earthquakes near San Germán Municipio
Guayanilla Municipio, PR 28 km (17 mi) ENE earthquakes near Guayanilla 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. 1.9 7 km SSE of Ponce, Puerto Rico
  2. 1.8 4 km SSW of Guánica, Puerto Rico
  3. 2.1 4 km NNW of Santo Domingo, Puerto Rico
  4. 1.8 3 km SSE of Mayagüez, Puerto Rico
  5. 1.8 2 km W of La Playa, Puerto Rico
  6. 1.8 6 km W of Puerto Real, Puerto Rico
  7. 1.5 3 km NNW of Sabana Grande, Puerto Rico
  8. 1.8 7 km SSW of Guánica, Puerto Rico
  9. 1.7 7 km W of Puerto Real, Puerto Rico
  10. 1.6 4 km SSW of Palmarejo, Puerto Rico
  11. 1.8 8 km ESE of La Parguera, Puerto Rico
  12. 1.8 6 km WSW of Adjuntas, Puerto Rico
  13. 1.8 20 km S of La Parguera, Puerto Rico
  14. 1.6 2 km E of Maria Antonia, Puerto Rico
  15. 1.8 0 km ESE of La Parguera, 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.