QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

Earthquake near Aguadilla, PR

No earthquake was likely felt in Aguadilla in the 24 hours to 10:13 am AST (14:13 UTC). The last one was M 3.5, 4 km (3 mi) SE, at 12:03 am AST on 6 November 2026, estimated intensity II (weak) in town. Every earthquake near Aguadilla

This page: a magnitude 2.1 earthquake was recorded 8 km (5 mi) northeast of Aguadilla, PR, at 9:42 am AST on 24 November 2019 (13:42 UTC), 89 km deep.

USGS: 1 km SW of San Antonio, Puerto Rico

32 km (20 mi) N of Mayagüez, PR · 111 km (69 mi) W of San Juan, PR

9:42 am AST, Nov 24, 2019 · · 89 km deep · released about 44 lb of TNT

Every earthquake near Aguadilla Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Aguadilla Municipio 4 kmIsabela Municipio 10 kmMoca Municipio 12 kmAguada Municipio 15 kmQuebradillas Municipio 19 kmRincón Municipio 22 kmAñasco Municipio 22 kmSan Sebastián Municipio 23 kmCamuy Municipio 26 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
9:42 am AST on 24 November 2019 ()
Where
8 km (5 mi) northeast of Aguadilla, PR · earthquakes near Aguadilla
Magnitude
M 2.1 (md)
Depth
89 km below the surface
Felt
no reports yet
Nearest
Aguadilla Municipio, 4 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2544 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 Aguadilla, 8 km away, the estimate is intensity I (not felt). 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: Rafael Hernandez, Caban, Aceitunas, Mora, Isabela, Moca.

How big was it?

This earthquake released about 44 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 340,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 240,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 44 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 1,900 times the energy of this one.

Before 2016, the USGS record lists 12 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.7 45 km N of San Antonio, Puerto Rico · 47 km N of this epicentre
  2. 7.1 24 km NNW of San Antonio, Puerto Rico · 25 km NNW of this epicentre
  3. 6.4 32 km NW of Aguadilla, Puerto Rico · 32 km WNW of this epicentre
  4. 6.3 6 km WNW of Aguadilla, Puerto Rico · 12 km WSW of this epicentre
  5. 6.1 15 km WNW of San Antonio, Puerto Rico · 15 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 18.4843, -67.1093. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Aguadilla Municipio, PR 4 km (2 mi) W earthquakes near Aguadilla Municipio
Isabela Municipio, PR 10 km (6 mi) E earthquakes near Isabela Municipio
Moca Municipio, PR 12 km (8 mi) SSE earthquakes near Moca Municipio
Aguada Municipio, PR 15 km (9 mi) SSW earthquakes near Aguada Municipio
Quebradillas Municipio, PR 19 km (12 mi) E earthquakes near Quebradillas Municipio
Rincón Municipio, PR 22 km (14 mi) SW earthquakes near Rincón Municipio

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

Aftershocks so far

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

  1. 2.8 3 km SW of Mayagüez, Puerto Rico
  2. 2.1 39 km NW of Rincón, Puerto Rico
  3. 2.3 2 km ESE of Hormigueros, Puerto Rico
  4. 1.9 4 km N of Puerto Real, Puerto Rico
  5. 2.9 45 km NNW of San Antonio, Puerto Rico
  6. 3.3 42 km NNW of San Antonio, Puerto Rico
  7. 1.9 8 km NNW of Puerto Real, Puerto Rico
  8. 2.7 40 km NW of San Antonio, Puerto Rico
  9. 2.1 1 km SSE of Aguada, Puerto Rico
  10. 1.9 4 km E of Rincón, Puerto Rico
  11. 2.7 0 km E of Añasco, Puerto Rico
  12. 3.1 44 km N of Isabela, Puerto Rico
  13. 2.2 8 km E of Mayagüez, Puerto Rico
  14. 2.2 20 km WNW of Puerto Real, Puerto Rico
  15. 1.9 21 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.