QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

Earthquake near La Parguera, PR

No earthquake was likely felt in La Parguera in the 24 hours to 10:15 am AST (14:15 UTC). The last one was M 2.1, 9 km (5 mi) WNW, at 11:57 pm AST on 8 November 2026, estimated intensity II (weak) in town. Every earthquake near La Parguera

This page: a magnitude 1.6 earthquake was recorded 11 km (7 mi) south-southeast of La Parguera, PR, at 4:58 am AST on 27 October 2019 (08:58 UTC), 14 km deep.

USGS: 10 km SSE of La Parguera, Puerto Rico

41 km (26 mi) WSW of Ponce, PR · 38 km (23 mi) SSE of Mayagüez, PR

4:58 am AST, Oct 27, 2019 · · 14 km deep · released about 8.1 lb of TNT

Every earthquake near La Parguera Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Guánica Municipio 10 kmLajas Municipio 11 kmSabana Grande Municipio 22 kmCabo Rojo Municipio 23 kmSan Germán Municipio 24 kmGuayanilla Municipio 25 kmYauco Municipio 26 kmHormigueros Municipio 30 kmMaricao Municipio 32 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
4:58 am AST on 27 October 2019 ()
Where
11 km (7 mi) south-southeast of La Parguera, PR · earthquakes near La Parguera
Magnitude
M 1.6 (md)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Guánica Municipio, 10 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2572 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. In La Parguera, 11 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, Liborio Negron Torres, Palmarejo, Lajas.

How big was it?

This earthquake released about 8.1 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 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,300,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 8.1 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 4.3 on 2019-09-05 — about 10,000 times the energy of this one.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

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 17.8916, -66.9968. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Guánica Municipio, PR 10 km (6 mi) NE earthquakes near Guánica Municipio
Lajas Municipio, PR 11 km (7 mi) NNW earthquakes near Lajas Municipio
Sabana Grande Municipio, PR 22 km (14 mi) NNE earthquakes near Sabana Grande Municipio
Cabo Rojo Municipio, PR 23 km (14 mi) WNW earthquakes near Cabo Rojo Municipio
San Germán Municipio, PR 24 km (15 mi) N earthquakes near San Germán Municipio
Guayanilla Municipio, PR 25 km (15 mi) ENE earthquakes near Guayanilla Municipio

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

Aftershocks so far

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

  1. 2.5 7 km NNW of Puerto Real, Puerto Rico
  2. 2.0 7 km NW of Puerto Real, Puerto Rico
  3. 1.9 21 km WNW of Puerto Real, Puerto Rico
  4. 2.0 1 km NE of Hormigueros, Puerto Rico
  5. 1.9 12 km SSE of Ponce, Puerto Rico
  6. 2.0 6 km NNE of Sabana Grande, Puerto Rico
  7. 2.8 37 km SSE of Tallaboa, Puerto Rico
  8. 2.1 8 km SW of La Parguera, Puerto Rico
  9. 2.3 9 km SW of La Parguera, Puerto Rico
  10. 2.1 12 km SSE of Ponce, Puerto Rico
  11. 2.0 9 km SSW of La Parguera, Puerto Rico
  12. 2.2 5 km SW of La Parguera, Puerto Rico
  13. 2.3 9 km SSW of Potala Pastillo, Puerto Rico
  14. 1.9 4 km ENE of Hormigueros, Puerto Rico
  15. 1.8 13 km S 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.