QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4Md

43 km N of San Antonio, Puerto Rico

· 11 km deep · released about 120 lb of TNT

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10 km30 km60 km120 km N Aguadilla Municipio 45 kmIsabela Municipio 46 kmQuebradillas Municipio 52 kmAguada Municipio 56 kmMoca Municipio 56 kmCamuy Municipio 57 kmHatillo Municipio 61 kmRincón Municipio 61 kmSan Sebastián Municipio 64 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
11 km below the surface
Felt
no reports yet
Nearest
Aguadilla Municipio, 45 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3798 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 18.8810, -67.1477. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Aguadilla Municipio, PR 45 km (28 mi) N of here earthquakes near Aguadilla Municipio
Isabela Municipio, PR 46 km (29 mi) NNW of here earthquakes near Isabela Municipio
Quebradillas Municipio, PR 52 km (32 mi) NNW of here earthquakes near Quebradillas Municipio
Aguada Municipio, PR 56 km (35 mi) N of here earthquakes near Aguada Municipio
Moca Municipio, PR 56 km (35 mi) N of here earthquakes near Moca Municipio
Camuy Municipio, PR 57 km (35 mi) NNW of here earthquakes near Camuy Municipio

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

Aftershocks so far

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

  1. 3.3 22 km NW of Aguadilla, Puerto Rico
  2. 3.0 10 km N of San Antonio, Puerto Rico
  3. 2.6 21 km NNW of San Antonio, Puerto Rico
  4. 3.0 47 km NNW of San Antonio, Puerto Rico
  5. 2.9 63 km N of Hatillo, Puerto Rico
  6. 2.9 50 km NW of San Antonio, Puerto Rico
  7. 2.2 63 km NW of San Antonio, Puerto Rico
  8. 3.1 Mona Passage
  9. 3.0 26 km NW of Rincón, Puerto Rico
  10. 3.1 67 km N of Hatillo, Puerto Rico
  11. 3.1 79 km NNW of San Antonio, Puerto Rico
  12. 2.8 90 km N of San Antonio, Puerto Rico
  13. 3.2 74 km NNW of San Antonio, Puerto Rico
  14. 3.4 90 km N of San Antonio, Puerto Rico
  15. 3.4 91 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.

On USGS

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