QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0Md

52 km W of Pole Ojea, Puerto Rico

· 6.0 km deep · released about 950 lb of TNT

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10 km30 km60 km120 km N Mayagüez Municipio 27 kmCabo Rojo Municipio 53 kmRincón Municipio 63 kmHormigueros Municipio 63 kmLajas Municipio 67 kmAñasco Municipio 69 kmSan Germán Municipio 70 kmAguada Municipio 70 kmSabana Grande Municipio 79 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 3.0 (Md)
Depth
6.0 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 27 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3693 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 950 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 350,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 16,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 11,000× the energy of this one
  4. This earthquake M 3.0 about 950 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 17.9468, -67.6765. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 27 km (17 mi) SE of here earthquakes near Mayagüez Municipio
Cabo Rojo Municipio, PR 53 km (33 mi) W of here earthquakes near Cabo Rojo Municipio
Rincón Municipio, PR 63 km (39 mi) SW of here earthquakes near Rincón Municipio
Hormigueros Municipio, PR 63 km (39 mi) WSW of here earthquakes near Hormigueros Municipio
Lajas Municipio, PR 67 km (42 mi) W of here earthquakes near Lajas Municipio
Añasco Municipio, PR 69 km (43 mi) WSW of here earthquakes near Añasco Municipio

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

Aftershocks so far

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

  1. 2.0 30 km W of Rincón, Puerto Rico
  2. 3.0 67 km SE of Boca de Yuma, Dominican Republic
  3. 3.0 11 km WNW of Puerto Real, Puerto Rico
  4. 3.0 37 km W of Rincón, Puerto Rico
  5. 2.7 62 km W of Rincón, Puerto Rico
  6. 2.0 10 km W of Puerto Real, Puerto Rico
  7. 2.1 22 km WNW of Puerto Real, Puerto Rico
  8. 3.1 62 km SE of Punta Cana, Dominican Republic
  9. 3.0 79 km SE of Boca de Yuma, Dominican Republic
  10. 1.9 18 km SSW of Pole Ojea, Puerto Rico
  11. 3.3 64 km SE of Punta Cana, Dominican Republic
  12. 2.3 15 km NW of Puerto Real, Puerto Rico
  13. 2.5 40 km SW of Pole Ojea, Puerto Rico
  14. 2.7 36 km WSW of Stella, Puerto Rico
  15. 2.7 16 km NW 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

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