QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

22 km S of Guánica, Puerto Rico

· 15 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Guánica Municipio 20 kmGuayanilla Municipio 28 kmLajas Municipio 28 kmPeñuelas Municipio 34 kmYauco Municipio 35 kmSabana Grande Municipio 36 kmCabo Rojo Municipio 40 kmPonce Municipio 40 kmSan Germán Municipio 41 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 2.4 (md)
Depth
15 km below the surface
Felt
no reports yet
Nearest
Guánica Municipio, 20 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1962 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 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 89,000× the energy of this one
  3. Around the size people start to feel M 3.0 7.9× the energy of this one
  4. This earthquake M 2.4 about 120 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 17.7685, -66.8918. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Guánica Municipio, PR 20 km (13 mi) S of here earthquakes near Guánica Municipio
Guayanilla Municipio, PR 28 km (17 mi) SSW of here earthquakes near Guayanilla Municipio
Lajas Municipio, PR 28 km (17 mi) SE of here earthquakes near Lajas Municipio
Peñuelas Municipio, PR 34 km (21 mi) SSW of here earthquakes near Peñuelas Municipio
Yauco Municipio, PR 35 km (22 mi) S of here earthquakes near Yauco Municipio
Sabana Grande Municipio, PR 36 km (22 mi) S of here earthquakes near Sabana Grande Municipio

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

Aftershocks so far

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

  1. 1.8 2 km SW of Indios, Puerto Rico
  2. 2.0 4 km SSE of Magas Arriba, Puerto Rico
  3. 2.0 7 km SE of Maria Antonia, Puerto Rico
  4. 2.4 7 km SE of Maria Antonia, Puerto Rico
  5. 2.2 7 km WSW of La Parguera, Puerto Rico
  6. 1.6 2 km W of Yauco, Puerto Rico
  7. 1.8 0 km S of Maria Antonia, Puerto Rico
  8. 1.6 4 km WSW of Fuig, Puerto Rico
  9. 2.0 7 km SSE of Guánica, Puerto Rico
  10. 1.9 0 km WNW of Fuig, Puerto Rico
  11. 1.8 4 km S of Maria Antonia, Puerto Rico
  12. 1.6 7 km ESE of La Parguera, Puerto Rico
  13. 1.8 6 km WSW of Guánica, Puerto Rico
  14. 1.7 8 km WSW of Guánica, Puerto Rico
  15. 1.8 9 km SSE of Guánica, 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 6.4 on 2020-01-07 — it released about 1,000,000 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.