QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

Earthquake near Puerto Real, PR

No earthquake was likely felt in Puerto Real in the 24 hours to 10:55 pm AST (02:55 UTC). The last one was M 2.1, 10 km (6 mi) SE, at 11:57 pm AST on 8 November 2026, estimated intensity II (weak) in town. Every earthquake near Puerto Real

This page: a magnitude 3.0 earthquake was recorded 49 km (31 mi) west of Puerto Real, PR, at 5:06 am AST on 23 November 2019 (09:06 UTC), 66 km deep.

USGS: 46 km WSW of Stella, Puerto Rico

54 km (33 mi) W of Mayagüez, PR · 109 km (68 mi) W of Ponce, PR

5:06 am AST, Nov 23, 2019 · · 66 km deep · released about 860 lb of TNT

Every earthquake near Puerto Real Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mayagüez Municipio 26 kmRincón Municipio 47 kmCabo Rojo Municipio 52 kmAguada Municipio 55 kmHormigueros Municipio 56 kmAñasco Municipio 57 kmSan Germán Municipio 64 kmAguadilla Municipio 65 kmMoca Municipio 65 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
5:06 am AST on 23 November 2019 ()
Where
49 km (31 mi) west of Puerto Real, PR · earthquakes near Puerto Real
Magnitude
M 3.0 (md)
Depth
66 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 26 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2462 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 it was probably too small to be felt, even directly above it. In Puerto Real, 49 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.

How big was it?

This earthquake released about 860 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 390,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 18,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 12,000× the energy of this one
  4. This earthquake M 3.0 about 860 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 4.4 on 2017-10-01 — about 140 times the energy of this one.

Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:

  1. 6.3 58 km E of Punta Cana, Dominican Republic · 45 km NNW of this epicentre
  2. 5.2 19 km SW of Stella, Puerto Rico · 29 km E of this epicentre
  3. 5.1 21 km SW of Stella, Puerto Rico · 29 km E 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 18.1460, -67.6455. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Mayagüez Municipio, PR 26 km (16 mi) WSW earthquakes near Mayagüez Municipio
Rincón Municipio, PR 47 km (29 mi) ENE earthquakes near Rincón Municipio
Cabo Rojo Municipio, PR 52 km (32 mi) ESE earthquakes near Cabo Rojo Municipio
Aguada Municipio, PR 55 km (34 mi) ENE earthquakes near Aguada Municipio
Hormigueros Municipio, PR 56 km (35 mi) E earthquakes near Hormigueros Municipio
Añasco Municipio, PR 57 km (35 mi) ENE earthquakes near Añasco Municipio

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

Aftershocks so far

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

  1. 2.0 6 km WNW of Mayagüez, Puerto Rico
  2. 3.3 52 km W of Stella, Puerto Rico
  3. 1.9 Mona Passage
  4. 3.2 55 km W of Rincón, Puerto Rico
  5. 2.7 36 km WNW of Rincón, Puerto Rico
  6. 2.2 6 km NW of Puerto Real, Puerto Rico
  7. 3.3 23 km WSW of Stella, Puerto Rico
  8. 2.3 5 km SSW of La Playa, Puerto Rico
  9. 2.4 29 km WSW of Puerto Real, Puerto Rico
  10. 2.0 11 km W of Puerto Real, Puerto Rico
  11. 2.4 36 km WSW of Pole Ojea, Puerto Rico
  12. 2.3 30 km WNW of Rincón, Puerto Rico
  13. 2.5 15 km SW of Stella, Puerto Rico
  14. 2.3 30 km WNW of Rincón, Puerto Rico
  15. 2.4 32 km WNW of Rincón, 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.