QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

Earthquake near La Parguera, PR

No earthquake was likely felt in La Parguera in the 24 hours to 12:58 pm AST (16:58 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 1.8 earthquake was recorded 4 km (2 mi) east of La Parguera, PR, at 4:48 am AST on 30 July 2019 (08:48 UTC), 7.0 km deep.

USGS: 3 km E of La Parguera, Puerto Rico

41 km (25 mi) W of Ponce, PR · 29 km (18 mi) SSE of Mayagüez, PR

4:48 am AST, Jul 30, 2019 · · 7.0 km deep · released about 17 lb of TNT

Every earthquake near La Parguera Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Lajas Municipio 3 kmGuánica Municipio 10 kmSabana Grande Municipio 14 kmSan Germán Municipio 15 kmCabo Rojo Municipio 18 kmYauco Municipio 20 kmHormigueros Municipio 21 kmGuayanilla Municipio 23 kmMaricao Municipio 23 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
4:48 am AST on 30 July 2019 ()
Where
4 km (2 mi) east of La Parguera, PR · earthquakes near La Parguera
Magnitude
M 1.8 (md)
Depth
7.0 km below the surface
Felt
no reports yet
Nearest
Lajas Municipio, 3 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2661 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 12 km (7 mi) from the epicentre. In La Parguera, 4 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: Lajas, Fuig, Palmarejo, Liborio Negron Torres, Guánica, San Germán.

How big was it?

This earthquake released about 17 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 640,000× the energy of this one
  3. Around the size people start to feel M 3.0 57× the energy of this one
  4. This earthquake M 1.8 about 17 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 · 47 km N of this epicentre
  2. 5.2 19 km SW of Stella, Puerto Rico · 45 km WNW of this epicentre
  3. 5.1 21 km SW of Stella, Puerto Rico · 44 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 17.9770, -67.0090. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Lajas Municipio, PR 3 km (2 mi) W earthquakes near Lajas Municipio
Guánica Municipio, PR 10 km (6 mi) ESE earthquakes near Guánica Municipio
Sabana Grande Municipio, PR 14 km (8 mi) NNE earthquakes near Sabana Grande Municipio
San Germán Municipio, PR 15 km (9 mi) NNW earthquakes near San Germán Municipio
Cabo Rojo Municipio, PR 18 km (11 mi) W earthquakes near Cabo Rojo Municipio
Yauco Municipio, PR 20 km (12 mi) NE earthquakes near Yauco Municipio

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

Aftershocks so far

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

  1. 2.1 2 km SW of Maricao, Puerto Rico
  2. 1.8 10 km SSE of Ponce, Puerto Rico
  3. 1.6 12 km WNW of Puerto Real, Puerto Rico
  4. 2.1 32 km S of Tallaboa, Puerto Rico
  5. 2.2 1 km NNW of Pole Ojea, Puerto Rico
  6. 1.6 8 km W of Mayagüez, Puerto Rico
  7. 2.0 2 km S of Mayagüez, Puerto Rico
  8. 1.9 1 km ENE of La Playa, Puerto Rico
  9. 1.8 2 km WNW of Guayanilla, Puerto Rico
  10. 1.7 12 km SSE of Ponce, Puerto Rico
  11. 1.8 7 km SW of Jayuya, Puerto Rico
  12. 2.4 12 km SSE of Ponce, Puerto Rico
  13. 1.6 3 km SW of Puerto Real, Puerto Rico
  14. 2.5 4 km E of Mayagüez, Puerto Rico
  15. 3.0 18 km WNW of Puerto Real, 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.