QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

10 km SW of Guánica, Puerto Rico

· 14 km deep · released about 74 lb of TNT

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10 km30 km60 km120 km N Guánica Municipio 7 kmLajas Municipio 12 kmSabana Grande Municipio 21 kmGuayanilla Municipio 21 kmYauco Municipio 24 kmSan Germán Municipio 24 kmCabo Rojo Municipio 25 kmPeñuelas Municipio 29 kmHormigueros Municipio 31 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 2.3 (md)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Guánica Municipio, 7 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2557 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 74 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 140,000× the energy of this one
  3. Around the size people start to feel M 3.0 13× the energy of this one
  4. This earthquake M 2.3 about 74 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 17.8991, -66.9681. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Guánica Municipio, PR 7 km (5 mi) SW of here earthquakes near Guánica Municipio
Lajas Municipio, PR 12 km (7 mi) SE of here earthquakes near Lajas Municipio
Sabana Grande Municipio, PR 21 km (13 mi) S of here earthquakes near Sabana Grande Municipio
Guayanilla Municipio, PR 21 km (13 mi) WSW of here earthquakes near Guayanilla Municipio
Yauco Municipio, PR 24 km (15 mi) SSW of here earthquakes near Yauco Municipio
San Germán Municipio, PR 24 km (15 mi) SSE 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

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

  1. 2.1 12 km SSE of Ponce, Puerto Rico
  2. 2.2 12 km SSE of Ponce, Puerto Rico
  3. 1.6 0 km NW of Cabo Rojo, Puerto Rico
  4. 1.7 3 km WNW of Pole Ojea, Puerto Rico
  5. 1.8 12 km SSE of Ponce, Puerto Rico
  6. 1.7 1 km S of Liborio Negron Torres, Puerto Rico
  7. 1.9 4 km WNW of Fuig, Puerto Rico
  8. 2.0 10 km W of Adjuntas, Puerto Rico
  9. 1.9 11 km SSE of La Parguera, Puerto Rico
  10. 2.4 7 km ESE of Maricao, Puerto Rico
  11. 1.9 12 km SSE of Ponce, Puerto Rico
  12. 1.9 12 km SSE of Ponce, Puerto Rico
  13. 1.8 12 km N of Yauco, Puerto Rico
  14. 1.6 11 km SE of La Parguera, Puerto Rico
  15. 1.8 7 km WNW 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.