QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4Md

12 km NNE of Arecibo, Puerto Rico

· 13 km deep · released about 120 lb of TNT

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10 km30 km60 km120 km N Arecibo Municipio 15 kmBarceloneta Municipio 16 kmHatillo Municipio 20 kmManatí Municipio 23 kmFlorida Municipio 25 kmCamuy Municipio 25 kmQuebradillas Municipio 30 kmVega Baja Municipio 31 kmUtuado 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 2.4 (Md)
Depth
13 km below the surface
Felt
no reports yet
Nearest
Arecibo Municipio, 15 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3555 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 18.5722, -66.6635. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Arecibo Municipio, PR 15 km (10 mi) N of here earthquakes near Arecibo Municipio
Barceloneta Municipio, PR 16 km (10 mi) NW of here earthquakes near Barceloneta Municipio
Hatillo Municipio, PR 20 km (13 mi) NE of here earthquakes near Hatillo Municipio
Manatí Municipio, PR 23 km (14 mi) NW of here earthquakes near Manatí Municipio
Florida Municipio, PR 25 km (16 mi) NNW of here earthquakes near Florida Municipio
Camuy Municipio, PR 25 km (16 mi) NE of here earthquakes near Camuy Municipio

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

Aftershocks so far

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

  1. 2.7 52 km N of Carrizales, Puerto Rico
  2. 3.2 54 km N of Carrizales, Puerto Rico
  3. 3.0 15 km NNE of Carrizales, Puerto Rico
  4. 2.6 12 km N of Garrochales, Puerto Rico
  5. 2.9 32 km NNW of Brenas, Puerto Rico
  6. 2.3 4 km WNW of Villalba, Puerto Rico
  7. 2.0 3 km NW of Villalba, Puerto Rico
  8. 1.9 7 km WSW of Orocovis, Puerto Rico
  9. 2.5 10 km N of Hatillo, Puerto Rico
  10. 2.9 Puerto Rico region
  11. 2.3 10 km NNE of Carrizales, Puerto Rico
  12. 3.0 Puerto Rico region
  13. 2.7 5 km E of Adjuntas, Puerto Rico
  14. 2.9 6 km N of Hatillo, Puerto Rico
  15. 2.7 9 km NNW of Garrochales, 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.