QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

12 km N of Quebradillas, Puerto Rico

· 80 km deep · released about 400 lb of TNT

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10 km30 km60 km120 km N Quebradillas Municipio 13 kmIsabela Municipio 14 kmCamuy Municipio 18 kmHatillo Municipio 22 kmAguadilla Municipio 24 kmMoca Municipio 27 kmSan Sebastián Municipio 28 kmArecibo Municipio 33 kmAguada Municipio 35 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 2.8 (md)
Depth
80 km below the surface
Felt
no reports yet
Nearest
Quebradillas Municipio, 13 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2986 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 400 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 38,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 27,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.4× the energy of this one
  4. This earthquake M 2.8 about 400 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 18.5856, -66.9411. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Quebradillas Municipio, PR 13 km (8 mi) N of here earthquakes near Quebradillas Municipio
Isabela Municipio, PR 14 km (8 mi) NE of here earthquakes near Isabela Municipio
Camuy Municipio, PR 18 km (11 mi) NNW of here earthquakes near Camuy Municipio
Hatillo Municipio, PR 22 km (14 mi) NW of here earthquakes near Hatillo Municipio
Aguadilla Municipio, PR 24 km (15 mi) ENE of here earthquakes near Aguadilla Municipio
Moca Municipio, PR 27 km (17 mi) NNE of here earthquakes near Moca Municipio

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

Aftershocks so far

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

  1. 2.7 1 km NNE of La Playa, Puerto Rico
  2. 2.5 4 km NNW of Arecibo, Puerto Rico
  3. 2.2 29 km NW of San Antonio, Puerto Rico
  4. 1.6 20 km N of Hatillo, Puerto Rico
  5. 2.4 14 km NNW of Isabela, Puerto Rico
  6. 2.4 12 km N of Arecibo, Puerto Rico
  7. 2.0 6 km ESE of Maricao, Puerto Rico
  8. 2.2 19 km N of Arecibo, Puerto Rico
  9. 3.0 25 km NW of Rincón, Puerto Rico
  10. 2.0 13 km N of Yauco, Puerto Rico
  11. 2.6 27 km N of Arecibo, Puerto Rico
  12. 1.6 36 km N of San Antonio, Puerto Rico
  13. 2.8 Puerto Rico region
  14. 2.2 3 km ESE of Mayagüez, Puerto Rico
  15. 2.0 5 km SE of Maricao, 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.