QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

6 km W of Hormigueros, Puerto Rico

· 17 km deep · released about 160 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hormigueros Municipio 8 kmSan Germán Municipio 16 kmCabo Rojo Municipio 17 kmAñasco Municipio 17 kmRincón Municipio 22 kmLas Marías Municipio 24 kmLajas Municipio 24 kmAguada Municipio 25 kmSabana Grande Municipio 26 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 2.5 (md)
Depth
17 km below the surface
Felt
no reports yet
Nearest
Hormigueros Municipio, 8 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3383 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 160 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 95,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 68,000× the energy of this one
  3. Around the size people start to feel M 3.0 6× the energy of this one
  4. This earthquake M 2.5 about 160 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 18.1465, -67.1871. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hormigueros Municipio, PR 8 km (5 mi) W of here earthquakes near Hormigueros Municipio
San Germán Municipio, PR 16 km (10 mi) WNW of here earthquakes near San Germán Municipio
Cabo Rojo Municipio, PR 17 km (10 mi) N of here earthquakes near Cabo Rojo Municipio
Añasco Municipio, PR 17 km (10 mi) SSW of here earthquakes near Añasco Municipio
Rincón Municipio, PR 22 km (14 mi) SSE of here earthquakes near Rincón Municipio
Las Marías Municipio, PR 24 km (15 mi) WSW of here earthquakes near Las Marías Municipio

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

Aftershocks so far

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

  1. 2.2 3 km SSE of Boquerón, Puerto Rico
  2. 2.7 2 km ESE of Magas Arriba, Puerto Rico
  3. 2.3 4 km WSW of Tallaboa, Puerto Rico
  4. 2.1 0 km SSW of Cayuco, Puerto Rico
  5. 1.9 14 km SSW of Guánica, Puerto Rico
  6. 1.9 3 km SE of La Parguera, Puerto Rico
  7. 2.2 17 km S of Guánica, Puerto Rico
  8. 2.6 10 km NW of Puerto Real, Puerto Rico
  9. 2.3 2 km NE of Hormigueros, Puerto Rico
  10. 1.6 4 km ESE of La Parguera, Puerto Rico
  11. 1.7 1 km SW of Cabo Rojo, Puerto Rico
  12. 2.3 10 km S of Lares, Puerto Rico
  13. 2.7 27 km WNW of Rincón, Puerto Rico
  14. 1.8 5 km NNE of San Germán, Puerto Rico
  15. 2.5 10 km WSW of Adjuntas, 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.