QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9md

50 km SSW of Pole Ojea, Puerto Rico

· 31 km deep · released about 680 lb of TNT

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10 km30 km60 km120 km N Cabo Rojo Municipio 53 kmLajas Municipio 60 kmGuánica Municipio 67 kmHormigueros Municipio 70 kmSan Germán Municipio 72 kmMayagüez Municipio 75 kmSabana Grande Municipio 75 kmGuayanilla Municipio 81 kmYauco Municipio 82 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
31 km below the surface
Felt
no reports yet
Nearest
Cabo Rojo Municipio, 53 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2591 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 680 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 16,000× 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 680 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 17.5748, -67.4173. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cabo Rojo Municipio, PR 53 km (33 mi) SSW of here earthquakes near Cabo Rojo Municipio
Lajas Municipio, PR 60 km (37 mi) SW of here earthquakes near Lajas Municipio
Guánica Municipio, PR 67 km (42 mi) SW of here earthquakes near Guánica Municipio
Hormigueros Municipio, PR 70 km (43 mi) SSW of here earthquakes near Hormigueros Municipio
San Germán Municipio, PR 72 km (45 mi) SW of here earthquakes near San Germán Municipio
Mayagüez Municipio, PR 75 km (47 mi) SE of here earthquakes near Mayagüez Municipio

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

Aftershocks so far

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

  1. 2.0 11 km SSW of Pole Ojea, Puerto Rico
  2. 2.8 95 km SW of Pole Ojea, Puerto Rico
  3. 1.6 1 km SSW of Pole Ojea, Puerto Rico
  4. 2.0 1 km WSW of Pole Ojea, Puerto Rico
  5. 1.6 11 km S of Pole Ojea, Puerto Rico
  6. 2.0 9 km SSW of Pole Ojea, Puerto Rico
  7. 2.0 9 km S of Pole Ojea, Puerto Rico
  8. 2.2 24 km WSW of Pole Ojea, Puerto Rico
  9. 1.9 10 km S of Pole Ojea, Puerto Rico
  10. 2.0 43 km S of Pole Ojea, Puerto Rico
  11. 1.5 22 km W of Pole Ojea, Puerto Rico
  12. 1.9 41 km WSW of Pole Ojea, Puerto Rico
  13. 2.2 10 km S of Pole Ojea, Puerto Rico
  14. 2.0 11 km S of Pole Ojea, Puerto Rico
  15. 1.9 8 km S of Pole Ojea, 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.