QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1Md

32 km WNW of Rincón, Puerto Rico

· 18 km deep · released about 43 lb of TNT

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10 km30 km60 km120 km N Rincón Municipio 33 kmAguada Municipio 38 kmAguadilla Municipio 42 kmAñasco Municipio 46 kmMoca Municipio 49 kmMayagüez Municipio 54 kmIsabela Municipio 56 kmHormigueros Municipio 56 kmSan Sebastián Municipio 62 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 2.1 (Md)
Depth
18 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 33 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3486 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 43 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 350,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 250,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 43 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 18.4370, -67.5422. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 33 km (20 mi) WNW of here earthquakes near Rincón Municipio
Aguada Municipio, PR 38 km (24 mi) W of here earthquakes near Aguada Municipio
Aguadilla Municipio, PR 42 km (26 mi) W of here earthquakes near Aguadilla Municipio
Añasco Municipio, PR 46 km (29 mi) WNW of here earthquakes near Añasco Municipio
Moca Municipio, PR 49 km (31 mi) W of here earthquakes near Moca Municipio
Mayagüez Municipio, PR 54 km (33 mi) NE of here earthquakes near Mayagüez Municipio

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

Aftershocks so far

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

  1. 2.8 41 km WNW of Rincón, Puerto Rico
  2. 2.7 42 km W of Rincón, Puerto Rico
  3. 3.5 70 km WSW of Stella, Puerto Rico
  4. 2.4 16 km WNW of Puerto Real, Puerto Rico
  5. 2.6 11 km NW of Caban, Puerto Rico
  6. 1.9 16 km NW of Puerto Real, Puerto Rico
  7. 2.9 30 km NW of Rincón, Puerto Rico
  8. 2.7 2 km SSW of Añasco, Puerto Rico
  9. 2.8 14 km NNW of Rincón, Puerto Rico
  10. 1.8 28 km W of Puerto Real, Puerto Rico
  11. 2.6 34 km WNW of Rincón, Puerto Rico
  12. 3.0 17 km W of Stella, Puerto Rico
  13. 2.7 10 km NW of Puerto Real, Puerto Rico
  14. 2.4 17 km SSW of Stella, Puerto Rico
  15. 1.9 10 km WNW of Puerto Real, 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

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