QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9md

54 km NW of Rincón, Puerto Rico

· 21 km deep · released about 700 lb of TNT

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10 km30 km60 km120 km N Rincón Municipio 55 kmAguadilla Municipio 58 kmAguada Municipio 59 kmMayagüez Municipio 64 kmAñasco Municipio 69 kmMoca Municipio 69 kmIsabela Municipio 72 kmHormigueros Municipio 80 kmQuebradillas Municipio 81 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 2.9 (md)
Depth
21 km below the surface
Felt
no reports yet
Nearest
Rincón Municipio, 55 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 460 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 700 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 22,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 15,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.4× the energy of this one
  4. This earthquake M 2.9 about 700 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 18.6233, -67.6762. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Rincón Municipio, PR 55 km (34 mi) NW of here earthquakes near Rincón Municipio
Aguadilla Municipio, PR 58 km (36 mi) WNW of here earthquakes near Aguadilla Municipio
Aguada Municipio, PR 59 km (36 mi) WNW of here earthquakes near Aguada Municipio
Mayagüez Municipio, PR 64 km (40 mi) NNE of here earthquakes near Mayagüez Municipio
Añasco Municipio, PR 69 km (43 mi) WNW of here earthquakes near Añasco Municipio
Moca Municipio, PR 69 km (43 mi) WNW of here earthquakes near Moca Municipio

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

Aftershocks so far

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

  1. 3.2 77 km NW of San Antonio, Puerto Rico
  2. 3.7 75 km NE of Punta Cana, Dominican Republic
  3. 3.4 54 km NNW of San Antonio, Puerto Rico
  4. 3.0 47 km NNW of San Antonio, Puerto Rico
  5. 3.7 13 km WNW of Aguadilla, Puerto Rico
  6. 3.7 48 km WSW of Stella, Puerto Rico
  7. 3.4 61 km ESE of Punta Cana, Dominican Republic
  8. 3.1 75 km NW of San Antonio, Puerto Rico
  9. 3.8 60 km W of Rincón, Puerto Rico
  10. 3.2 64 km NW of San Antonio, Puerto Rico
  11. 3.5 64 km W of Stella, Puerto Rico
  12. 2.9 45 km W of Rincón, Puerto Rico
  13. 3.4 39 km NNW of San Antonio, Puerto Rico
  14. 2.9 40 km NNW of San Antonio, Puerto Rico
  15. 2.9 43 km NNW 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 4.6 on 2020-01-29 — it released about 340 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.