QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

13 km NNE of Arecibo, Puerto Rico

· 73 km deep · released about 100 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Arecibo Municipio 18 kmBarceloneta Municipio 19 kmHatillo Municipio 21 kmCamuy Municipio 25 kmManatí Municipio 26 kmFlorida Municipio 28 kmQuebradillas Municipio 29 kmVega Baja Municipio 34 kmUtuado Municipio 36 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
73 km below the surface
Felt
no reports yet
Nearest
Arecibo Municipio, 18 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2942 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 100 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 5.8 150,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 110,000× the energy of this one
  3. Around the size people start to feel M 3.0 9.4× the energy of this one
  4. This earthquake M 2.4 about 100 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 18.5913, -66.6835. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Arecibo Municipio, PR 18 km (11 mi) N of here earthquakes near Arecibo Municipio
Barceloneta Municipio, PR 19 km (12 mi) NW of here earthquakes near Barceloneta Municipio
Hatillo Municipio, PR 21 km (13 mi) NE of here earthquakes near Hatillo Municipio
Camuy Municipio, PR 25 km (15 mi) NE of here earthquakes near Camuy Municipio
Manatí Municipio, PR 26 km (16 mi) NW of here earthquakes near Manatí Municipio
Florida Municipio, PR 28 km (17 mi) NNW of here earthquakes near Florida Municipio

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

Aftershocks so far

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

  1. 2.4 24 km N of Isabela, Puerto Rico
  2. 2.9 59 km NNE of Arecibo, Puerto Rico
  3. 2.4 8 km NNE of Dorado, Puerto Rico
  4. 2.1 2 km E of San Sebastián, Puerto Rico
  5. 2.8 48 km N of Brenas, Puerto Rico
  6. 2.5 23 km NNW of Camuy, Puerto Rico
  7. 2.7 23 km N of Hatillo, Puerto Rico
  8. 2.5 33 km N of Tierras Nuevas Poniente, Puerto Rico
  9. 2.6 24 km N of Hatillo, Puerto Rico
  10. 2.2 17 km NNW of Garrochales, Puerto Rico
  11. 2.8 42 km N of Hatillo, Puerto Rico
  12. 1.8 1 km SSE of Adjuntas, Puerto Rico
  13. 2.8 57 km N of Tierras Nuevas Poniente, Puerto Rico
  14. 1.9 5 km N of Arecibo, Puerto Rico
  15. 2.4 35 km N of Carrizales, 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.