QuakeIndex

Earthquake · reviewed by a seismologist

M 2.7md

7 km NNW of Hatillo, Puerto Rico

· 90 km deep · released about 390 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Camuy Municipio 12 kmQuebradillas Municipio 13 kmHatillo Municipio 14 kmIsabela Municipio 20 kmArecibo Municipio 22 kmSan Sebastián Municipio 28 kmLares Municipio 31 kmBarceloneta Municipio 31 kmMoca Municipio 32 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
90 km below the surface
Felt
no reports yet
Nearest
Camuy Municipio, 12 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2806 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 390 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 39,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 28,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.5× the energy of this one
  4. This earthquake M 2.7 about 390 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 18.5558, -66.8413. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Camuy Municipio, PR 12 km (8 mi) N of here earthquakes near Camuy Municipio
Quebradillas Municipio, PR 13 km (8 mi) NE of here earthquakes near Quebradillas Municipio
Hatillo Municipio, PR 14 km (8 mi) NNW of here earthquakes near Hatillo Municipio
Isabela Municipio, PR 20 km (12 mi) ENE of here earthquakes near Isabela Municipio
Arecibo Municipio, PR 22 km (14 mi) NW of here earthquakes near Arecibo Municipio
San Sebastián Municipio, PR 28 km (18 mi) NNE of here earthquakes near San Sebastián Municipio

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

Aftershocks so far

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

  1. 2.5 7 km NNE of Isabela, Puerto Rico
  2. 2.3 Puerto Rico region
  3. 2.7 54 km N of Hatillo, Puerto Rico
  4. 2.4 21 km NNE of Arecibo, Puerto Rico
  5. 2.5 47 km N of Isabela, Puerto Rico
  6. 1.9 9 km NNE of Lluveras, Puerto Rico
  7. 1.7 3 km N of Mayagüez, Puerto Rico
  8. 2.2 9 km NNW of Camuy, Puerto Rico
  9. 2.4 15 km N of Carrizales, Puerto Rico
  10. 1.8 7 km WNW of Maricao, Puerto Rico
  11. 2.1 19 km NNW of Camuy, Puerto Rico
  12. 1.8 1 km NNW of Mayagüez, Puerto Rico
  13. 2.4 20 km N of Carrizales, Puerto Rico
  14. 1.7 5 km WSW of Adjuntas, Puerto Rico
  15. 2.0 8 km SW of Las Marías, 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.