QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

29 km NNE of Arecibo, Puerto Rico

· 18 km deep · released about 140 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Barceloneta Municipio 31 kmArecibo Municipio 33 kmHatillo Municipio 36 kmManatí Municipio 36 kmCamuy Municipio 39 kmVega Baja Municipio 41 kmFlorida Municipio 42 kmQuebradillas Municipio 42 kmVega Alta Municipio 47 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
18 km below the surface
Felt
no reports yet
Nearest
Barceloneta Municipio, 31 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2628 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 140 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 5.8 110,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 78,000× the energy of this one
  3. Around the size people start to feel M 3.0 6.9× the energy of this one
  4. This earthquake M 2.4 about 140 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 18.7331, -66.6498. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Barceloneta Municipio, PR 31 km (19 mi) NNW of here earthquakes near Barceloneta Municipio
Arecibo Municipio, PR 33 km (21 mi) N of here earthquakes near Arecibo Municipio
Hatillo Municipio, PR 36 km (22 mi) NNE of here earthquakes near Hatillo Municipio
Manatí Municipio, PR 36 km (22 mi) NNW of here earthquakes near Manatí Municipio
Camuy Municipio, PR 39 km (24 mi) NE of here earthquakes near Camuy Municipio
Vega Baja Municipio, PR 41 km (25 mi) NW of here earthquakes near Vega Baja Municipio

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

Aftershocks so far

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

  1. 2.1 21 km NNE of Tierras Nuevas Poniente, Puerto Rico
  2. 2.3 43 km N of Hatillo, Puerto Rico
  3. 2.4 70 km N of Tierras Nuevas Poniente, Puerto Rico
  4. 2.2 40 km N of Tierras Nuevas Poniente, Puerto Rico
  5. 2.7 76 km N of Tierras Nuevas Poniente, Puerto Rico
  6. 1.8 72 km NNE of Arecibo, Puerto Rico
  7. 2.2 78 km N of Arecibo, Puerto Rico
  8. 2.3 62 km N of Arecibo, Puerto Rico
  9. 2.0 14 km N of Arecibo, Puerto Rico
  10. 2.1 76 km N of Tierras Nuevas Poniente, Puerto Rico
  11. 1.9 10 km NNE of Isabela, Puerto Rico
  12. 2.7 12 km N of Hatillo, Puerto Rico
  13. 2.5 24 km NNE of Hatillo, Puerto Rico
  14. 2.7 38 km N of Carrizales, Puerto Rico
  15. 3.0 30 km N of San Antonio, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.8 on 2017-08-18 — it released about 3,500 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.