QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1Md

39 km NW of Rincón, Puerto Rico

· 8.0 km deep · released about 43 lb of TNT

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10 km30 km60 km120 km N Rincón Municipio 40 kmAguada Municipio 43 kmAguadilla Municipio 43 kmMoca Municipio 53 kmAñasco Municipio 53 kmIsabela Municipio 57 kmMayagüez Municipio 64 kmHormigueros Municipio 65 kmSan Sebastián Municipio 66 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
8.0 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 40 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3487 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 18.5601, -67.5447. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 40 km (25 mi) NW of here earthquakes near Rincón Municipio
Aguada Municipio, PR 43 km (27 mi) WNW of here earthquakes near Aguada Municipio
Aguadilla Municipio, PR 43 km (27 mi) WNW of here earthquakes near Aguadilla Municipio
Moca Municipio, PR 53 km (33 mi) WNW of here earthquakes near Moca Municipio
Añasco Municipio, PR 53 km (33 mi) NW of here earthquakes near Añasco Municipio
Isabela Municipio, PR 57 km (35 mi) W of here earthquakes near Isabela 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. 2.0 4 km NW of Rincón, Puerto Rico
  2. 2.1 17 km WNW of Rincón, Puerto Rico
  3. 2.9 34 km WSW of Stella, Puerto Rico
  4. 2.8 42 km W of Rincón, Puerto Rico
  5. 2.3 45 km WSW of Stella, Puerto Rico
  6. 2.5 22 km NW of Rincón, Puerto Rico
  7. 2.6 21 km NW of Aguadilla, Puerto Rico
  8. 2.4 44 km W of Rincón, Puerto Rico
  9. 2.8 41 km WNW of Rincón, Puerto Rico
  10. 2.7 42 km W of Rincón, Puerto Rico
  11. 2.6 11 km NW of Caban, Puerto Rico
  12. 1.9 16 km NW of Puerto Real, Puerto Rico
  13. 3.1 65 km NW of San Antonio, Puerto Rico
  14. 2.9 30 km NW of Rincón, Puerto Rico
  15. 2.8 14 km NNW of Rincón, 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.