QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

11 km N of Quebradillas, Puerto Rico

· 17 km deep · released about 180 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Quebradillas Municipio 12 kmIsabela Municipio 13 kmCamuy Municipio 16 kmHatillo Municipio 21 kmAguadilla Municipio 25 kmMoca Municipio 27 kmSan Sebastián Municipio 28 kmArecibo Municipio 32 kmLares Municipio 34 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
Magnitude
M 2.5 (md)
Depth
17 km below the surface
Felt
no reports yet
Nearest
Quebradillas Municipio, 12 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 8 days ago

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 180 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 83,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 59,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.2× the energy of this one
  4. This earthquake M 2.5 about 180 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.

Where

Epicentre 18.5763, -66.9340. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Quebradillas Municipio, PR 12 km (8 mi) N of here earthquakes near Quebradillas Municipio
Isabela Municipio, PR 13 km (8 mi) NE of here earthquakes near Isabela Municipio
Camuy Municipio, PR 16 km (10 mi) NNW of here earthquakes near Camuy Municipio
Hatillo Municipio, PR 21 km (13 mi) NW of here earthquakes near Hatillo Municipio
Aguadilla Municipio, PR 25 km (15 mi) ENE of here earthquakes near Aguadilla Municipio
Moca Municipio, PR 27 km (17 mi) NE of here earthquakes near Moca Municipio

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

Aftershocks so far

1 earthquake has been recorded within 50 km since this one.

  1. 2.8 13 km NNE of Carrizales, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.3 on 2025-08-22 — it released about 470 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.