QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

18 km SSW of Guánica, Puerto Rico

· 10 km deep · released about 190 lb of TNT

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10 km30 km60 km120 km N Guánica Municipio 15 kmLajas Municipio 21 kmGuayanilla Municipio 27 kmSabana Grande Municipio 30 kmCabo Rojo Municipio 32 kmYauco Municipio 32 kmPeñuelas Municipio 34 kmSan Germán Municipio 34 kmHormigueros Municipio 40 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
10 km below the surface
Felt
no reports yet
Nearest
Guánica Municipio, 15 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3328 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 190 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 80,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 57,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.1× the energy of this one
  4. This earthquake M 2.5 about 190 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 17.8120, -66.9536. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Guánica Municipio, PR 15 km (10 mi) SSW of here earthquakes near Guánica Municipio
Lajas Municipio, PR 21 km (13 mi) SSE of here earthquakes near Lajas Municipio
Guayanilla Municipio, PR 27 km (17 mi) SW of here earthquakes near Guayanilla Municipio
Sabana Grande Municipio, PR 30 km (19 mi) S of here earthquakes near Sabana Grande Municipio
Cabo Rojo Municipio, PR 32 km (20 mi) SE of here earthquakes near Cabo Rojo Municipio
Yauco Municipio, PR 32 km (20 mi) SSW of here earthquakes near Yauco Municipio

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

Aftershocks so far

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

  1. 2.1 0 km NNW of Hormigueros, Puerto Rico
  2. 1.6 7 km W of La Parguera, Puerto Rico
  3. 2.9 4 km WSW of Las Marías, Puerto Rico
  4. 2.1 7 km SE of Maricao, Puerto Rico
  5. 1.7 10 km ESE of Maricao, Puerto Rico
  6. 1.8 3 km NW of Fuig, Puerto Rico
  7. 2.0 4 km W of Palmarejo, Puerto Rico
  8. 2.1 2 km SE of Palmarejo, Puerto Rico
  9. 2.3 12 km WNW of Adjuntas, Puerto Rico
  10. 2.6 4 km ENE of La Parguera, Puerto Rico
  11. 1.9 4 km ESE of San Germán, Puerto Rico
  12. 2.1 24 km S of Tallaboa, Puerto Rico
  13. 1.7 11 km SSW of Potala Pastillo, Puerto Rico
  14. 2.1 2 km W of Las Marías, Puerto Rico
  15. 1.6 1 km SSW of Cabo Rojo, 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.