QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7Md

34 km N of Isabela, Puerto Rico

· 53 km deep · released about 340 lb of TNT

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10 km30 km60 km120 km N Isabela Municipio 37 kmQuebradillas Municipio 38 kmAguadilla Municipio 41 kmCamuy Municipio 42 kmHatillo Municipio 45 kmMoca Municipio 50 kmArecibo Municipio 52 kmSan Sebastián Municipio 53 kmAguada Municipio 54 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 2.7 (Md)
Depth
53 km below the surface
Felt
no reports yet
Nearest
Isabela Municipio, 37 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3483 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 340 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 45,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 32,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.8× the energy of this one
  4. This earthquake M 2.7 about 340 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 18.8096, -66.9653. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Isabela Municipio, PR 37 km (23 mi) N of here earthquakes near Isabela Municipio
Quebradillas Municipio, PR 38 km (24 mi) N of here earthquakes near Quebradillas Municipio
Aguadilla Municipio, PR 41 km (26 mi) NNE of here earthquakes near Aguadilla Municipio
Camuy Municipio, PR 42 km (26 mi) NNW of here earthquakes near Camuy Municipio
Hatillo Municipio, PR 45 km (28 mi) NNW of here earthquakes near Hatillo Municipio
Moca Municipio, PR 50 km (31 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

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

  1. 2.3 10 km NNE of Carrizales, Puerto Rico
  2. 3.0 Puerto Rico region
  3. 2.9 45 km N of Isabela, Puerto Rico
  4. 2.9 6 km N of Hatillo, Puerto Rico
  5. 2.7 9 km NNW of Garrochales, Puerto Rico
  6. 3.1 48 km NNW of San Antonio, Puerto Rico
  7. 2.8 31 km N of Isabela, Puerto Rico
  8. 2.6 36 km N of Hatillo, Puerto Rico
  9. 3.0 49 km N of Isabela, Puerto Rico
  10. 2.8 42 km N of Isabela, Puerto Rico
  11. 3.3 48 km N of Isabela, Puerto Rico
  12. 2.9 38 km N of Isabela, Puerto Rico
  13. 2.7 11 km NNE of Carrizales, Puerto Rico
  14. 3.3 52 km NNW of San Antonio, Puerto Rico
  15. 2.9 8 km N of Quebradillas, 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.