QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

7 km NNE of Hatillo, Puerto Rico

· 13 km deep · released about 450 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hatillo Municipio 12 kmCamuy Municipio 13 kmQuebradillas Municipio 16 kmArecibo Municipio 19 kmIsabela Municipio 23 kmBarceloneta Municipio 28 kmSan Sebastián Municipio 30 kmLares Municipio 31 kmFlorida Municipio 33 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
13 km below the surface
Felt
no reports yet
Nearest
Hatillo Municipio, 12 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2506 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 450 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 34,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 24,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.1× the energy of this one
  4. This earthquake M 2.8 about 450 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 18.5521, -66.8105. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hatillo Municipio, PR 12 km (8 mi) N of here earthquakes near Hatillo Municipio
Camuy Municipio, PR 13 km (8 mi) NNE of here earthquakes near Camuy Municipio
Quebradillas Municipio, PR 16 km (10 mi) NE of here earthquakes near Quebradillas Municipio
Arecibo Municipio, PR 19 km (12 mi) NW of here earthquakes near Arecibo Municipio
Isabela Municipio, PR 23 km (14 mi) ENE of here earthquakes near Isabela Municipio
Barceloneta Municipio, PR 28 km (17 mi) WNW of here earthquakes near Barceloneta Municipio

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

Aftershocks so far

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

  1. 2.7 0 km E of Añasco, Puerto Rico
  2. 3.1 44 km N of Isabela, Puerto Rico
  3. 2.2 8 km E of Mayagüez, Puerto Rico
  4. 2.3 6 km ESE of Maricao, Puerto Rico
  5. 1.6 Puerto Rico region
  6. 2.1 3 km E of Isabela, Puerto Rico
  7. 2.7 24 km N of San Antonio, Puerto Rico
  8. 1.6 3 km S of Maricao, Puerto Rico
  9. 2.0 22 km NNE of Carrizales, Puerto Rico
  10. 2.7 35 km N of Tierras Nuevas Poniente, Puerto Rico
  11. 2.4 4 km ENE of Jayuya, Puerto Rico
  12. 2.6 8 km N of Arecibo, Puerto Rico
  13. 2.8 42 km N of Isabela, Puerto Rico
  14. 2.7 28 km N of Camuy, Puerto Rico
  15. 2.6 38 km N of Hatillo, 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.