QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9md

63 km W of Rincón, Puerto Rico

· 128 km deep · released about 650 lb of TNT

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10 km30 km60 km120 km N Mayagüez Municipio 21 kmRincón Municipio 63 kmAguada Municipio 71 kmAñasco Municipio 75 kmCabo Rojo Municipio 76 kmAguadilla Municipio 78 kmHormigueros Municipio 78 kmMoca Municipio 82 kmSan Germán Municipio 87 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
128 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 21 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2887 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 650 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 23,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 16,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.5× the energy of this one
  4. This earthquake M 2.9 about 650 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 18.2691, -67.8450. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 21 km (13 mi) NNE of here earthquakes near Mayagüez Municipio
Rincón Municipio, PR 63 km (39 mi) W of here earthquakes near Rincón Municipio
Aguada Municipio, PR 71 km (44 mi) W of here earthquakes near Aguada Municipio
Añasco Municipio, PR 75 km (47 mi) W of here earthquakes near Añasco Municipio
Cabo Rojo Municipio, PR 76 km (47 mi) WNW of here earthquakes near Cabo Rojo Municipio
Aguadilla Municipio, PR 78 km (48 mi) WSW of here earthquakes near Aguadilla Municipio

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

Aftershocks so far

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

  1. 2.8 52 km ESE of Boca de Yuma, Dominican Republic
  2. 3.0 67 km SE of Punta Cana, Dominican Republic
  3. 2.4 23 km NW of Rincón, Puerto Rico
  4. 2.5 55 km SE of Punta Cana, Dominican Republic
  5. 2.7 22 km W of Rincón, Puerto Rico
  6. 2.3 26 km SW of Stella, Puerto Rico
  7. 3.3 59 km SE of Punta Cana, Dominican Republic
  8. 2.6 46 km W of Pole Ojea, Puerto Rico
  9. 3.0 72 km ESE of Boca de Yuma, Dominican Republic
  10. 3.1 59 km W of Rincón, Puerto Rico
  11. 2.6 43 km WSW of Stella, Puerto Rico
  12. 2.9 16 km WSW of Stella, Puerto Rico
  13. 3.0 66 km SE of Punta Cana, Dominican Republic
  14. 2.8 65 km WSW of Stella, Puerto Rico
  15. 3.0 65 km SE of Punta Cana, Dominican Republic

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 4.4 on 2017-10-01 — it released about 180 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.