QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9md

Earthquake near Aguadilla, PR

USGS: 42 km NW of San Antonio, Puerto Rico

4:00 am AST, Oct 5, 2026 · · 13 km deep · released about 680 lb of TNT

Every earthquake near Aguadilla Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Aguadilla Municipio 42 kmIsabela Municipio 49 kmAguada Municipio 51 kmRincón Municipio 53 kmMoca Municipio 55 kmQuebradillas Municipio 57 kmAñasco Municipio 62 kmCamuy Municipio 64 kmSan Sebastián Municipio 66 km
Distance rings around the epicentre, with the nearest towns at their true direction. Not a shaking map — see the USGS ShakeMap for that.
When
4:00 am AST on 5 October 2026 ()
Where
47 km (29 mi) NNW of Aguadilla, PR · earthquakes near Aguadilla
Magnitude
M 2.9 (md)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Aguadilla Municipio, 42 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2 hours ago

A magnitude 2.9 earthquake was recorded 47 km (29 mi) NNW of Aguadilla, PR, at 4:00 am AST on 5 October 2026 (08:00 UTC). This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 680 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 16,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.4× the energy of this one
  4. This earthquake M 2.9 about 680 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 6.0 on 2019-09-24 — about 45,000 times the energy of this one.

Before 2016, the USGS record lists 15 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.7 45 km N of San Antonio, Puerto Rico · 24 km ENE of this epicentre
  2. 7.1 24 km NNW of San Antonio, Puerto Rico · 19 km SE of this epicentre
  3. 6.4 32 km NW of Aguadilla, Puerto Rico · 23 km SSW of this epicentre
  4. 6.3 6 km WNW of Aguadilla, Puerto Rico · 43 km SSE of this epicentre
  5. 6.1 15 km WNW of San Antonio, Puerto Rico · 31 km SSE 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 18.8148, -67.3247. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Aguadilla Municipio, PR 42 km (26 mi) SSE earthquakes near Aguadilla Municipio
Isabela Municipio, PR 49 km (31 mi) SE earthquakes near Isabela Municipio
Aguada Municipio, PR 51 km (32 mi) SSE earthquakes near Aguada Municipio
Rincón Municipio, PR 53 km (33 mi) S earthquakes near Rincón Municipio
Moca Municipio, PR 55 km (34 mi) SSE earthquakes near Moca Municipio
Quebradillas Municipio, PR 57 km (35 mi) SE earthquakes near Quebradillas Municipio

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

Aftershocks so far

No further earthquakes have been recorded within 50 km since this one.

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.