QuakeIndex

Earthquake · reviewed by a seismologist

M 3.3ml

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 3.3 earthquake was recorded 10 km (7 mi) southeast of La Parguera, PR, at 12:12 am AST on 20 January 2020 (04:12 UTC), 4.0 km deep. 3 people have reported feeling it to USGS.

USGS: 10 km SE of La Parguera, Puerto Rico

39 km (24 mi) WSW of Ponce, PR · 37 km (23 mi) SSE of Mayagüez, PR

12:12 am AST, Jan 20, 2020 · · 4.0 km deep · released about 1.3 tons of TNT

Every earthquake near La Parguera Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Guánica Municipio 8 kmLajas Municipio 10 kmSabana Grande Municipio 20 kmGuayanilla Municipio 22 kmSan Germán Municipio 23 kmCabo Rojo Municipio 24 kmYauco Municipio 24 kmHormigueros Municipio 29 kmPeñuelas Municipio 30 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
12:12 am AST on 20 January 2020 ()
Where
10 km (7 mi) southeast of La Parguera, PR · earthquakes near La Parguera
Magnitude
M 3.3 (ml)
Depth
4.0 km below the surface
Felt
3 reports · strongest reported intensity IV
Nearest
Guánica Municipio, 8 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1556 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 52 km (32 mi) from the epicentre. In La Parguera, 10 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: Yauco 20 km, intensity III · San Germán 21 km, intensity III · Pole Ojea 23 km, intensity II · Guayanilla 24 km, intensity II · Magas Arriba 26 km, intensity II · Puerto Real 29 km, intensity II · Tallaboa 30 km, intensity II · Tallaboa Alta 34 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 1.3 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 130,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 5,600× the energy of this one
  3. Magna, Utah 2020 M 5.7 4,000× the energy of this one
  4. This earthquake M 3.3 about 1.3 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 2.8× more

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 45,000 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 17.9056, -66.9796. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Guánica Municipio, PR 8 km (5 mi) NE earthquakes near Guánica Municipio
Lajas Municipio, PR 10 km (6 mi) NW earthquakes near Lajas Municipio
Sabana Grande Municipio, PR 20 km (13 mi) N earthquakes near Sabana Grande Municipio
Guayanilla Municipio, PR 22 km (14 mi) ENE earthquakes near Guayanilla Municipio
San Germán Municipio, PR 23 km (14 mi) NNW earthquakes near San Germán Municipio
Cabo Rojo Municipio, PR 24 km (15 mi) WNW earthquakes near Cabo Rojo Municipio

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

Aftershocks so far

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

  1. 2.8 4 km SW of Tallaboa, Puerto Rico
  2. 2.9 6 km S of Tallaboa, Puerto Rico
  3. 2.6 7 km S of Guánica, Puerto Rico
  4. 2.1 1 km W of Tallaboa, Puerto Rico
  5. 2.3 8 km SSE of Guánica, Puerto Rico
  6. 3.3 7 km S of Tallaboa, Puerto Rico
  7. 3.7 5 km S of Tallaboa, Puerto Rico
  8. 3.6 6 km S of Tallaboa, Puerto Rico
  9. 3.3 13 km S of Indios, Puerto Rico
  10. 2.7 5 km S of Guánica, Puerto Rico
  11. 2.6 Puerto Rico region
  12. 2.0 3 km WSW of Tallaboa, Puerto Rico
  13. 2.5 2 km SE of Magas Arriba, Puerto Rico
  14. 2.8 2 km WSW of Guánica, Puerto Rico
  15. 2.9 2 km WNW 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.