QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9md

61 km SW of Pole Ojea, Puerto Rico

· 28 km deep · released about 750 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mayagüez Municipio 60 kmCabo Rojo Municipio 64 kmLajas Municipio 74 kmHormigueros Municipio 79 kmGuánica Municipio 83 kmSan Germán Municipio 83 kmSabana Grande Municipio 89 kmRincón Municipio 90 kmAñasco Municipio 92 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
28 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 60 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 595 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 750 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 20,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 14,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.3× the energy of this one
  4. This earthquake M 2.9 about 750 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 17.6082, -67.6240. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Mayagüez Municipio, PR 60 km (37 mi) SSE of here earthquakes near Mayagüez Municipio
Cabo Rojo Municipio, PR 64 km (40 mi) SW of here earthquakes near Cabo Rojo Municipio
Lajas Municipio, PR 74 km (46 mi) WSW of here earthquakes near Lajas Municipio
Hormigueros Municipio, PR 79 km (49 mi) SW of here earthquakes near Hormigueros Municipio
Guánica Municipio, PR 83 km (52 mi) WSW of here earthquakes near Guánica Municipio
San Germán Municipio, PR 83 km (52 mi) SW of here earthquakes near San Germán Municipio

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

Aftershocks so far

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

  1. 4.7 106 km WSW of Pole Ojea, Puerto Rico
  2. 3.0 30 km SW of Pole Ojea, Puerto Rico
  3. 2.8 29 km W of Pole Ojea, Puerto Rico
  4. 3.0 65 km SW of Pole Ojea, Puerto Rico
  5. 3.3 73 km W of Pole Ojea, Puerto Rico
  6. 2.9 29 km SW of Pole Ojea, Puerto Rico
  7. 2.9 43 km SSW of Pole Ojea, Puerto Rico
  8. 3.0 54 km SW of Pole Ojea, Puerto Rico
  9. 3.4 73 km W of Pole Ojea, Puerto Rico
  10. 3.0 83 km SSW of Pole Ojea, Puerto Rico
  11. 3.3 36 km WSW of Pole Ojea, Puerto Rico
  12. 3.4 83 km W of Pole Ojea, Puerto Rico
  13. 2.8 17 km SSW 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.3 on 2024-10-30 — it released about 95 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.