QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

20 km S of La Parguera, Puerto Rico

· 28 km deep · released about 6.8 lb of TNT

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10 km30 km60 km120 km N Guánica Municipio 20 kmLajas Municipio 21 kmCabo Rojo Municipio 29 kmGuayanilla Municipio 33 kmSabana Grande Municipio 33 kmSan Germán Municipio 35 kmYauco Municipio 37 kmPeñuelas Municipio 40 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 1.6 (md)
Depth
28 km below the surface
Felt
no reports yet
Nearest
Guánica Municipio, 20 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3179 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 6.8 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.8 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 17.7905, -67.0096. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Guánica Municipio, PR 20 km (12 mi) SSW of here earthquakes near Guánica Municipio
Lajas Municipio, PR 21 km (13 mi) S of here earthquakes near Lajas Municipio
Cabo Rojo Municipio, PR 29 km (18 mi) SE of here earthquakes near Cabo Rojo Municipio
Guayanilla Municipio, PR 33 km (20 mi) SW of here earthquakes near Guayanilla Municipio
Sabana Grande Municipio, PR 33 km (21 mi) SSW of here earthquakes near Sabana Grande Municipio
San Germán Municipio, PR 35 km (22 mi) S 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

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

  1. 2.2 15 km SSW of Guánica, Puerto Rico
  2. 2.2 4 km NW of Maricao, Puerto Rico
  3. 2.2 13 km SSW of Guánica, Puerto Rico
  4. 2.2 12 km S of Ponce, Puerto Rico
  5. 2.6 12 km WNW of Puerto Real, Puerto Rico
  6. 1.9 6 km SSW of Guánica, Puerto Rico
  7. 2.0 4 km ENE of Hormigueros, Puerto Rico
  8. 1.6 6 km SW of La Parguera, Puerto Rico
  9. 1.9 5 km NNW of Santo Domingo, Puerto Rico
  10. 2.1 5 km N of Lluveras, Puerto Rico
  11. 2.1 20 km S of La Parguera, Puerto Rico
  12. 2.3 16 km SSW of Pole Ojea, Puerto Rico
  13. 1.9 12 km SSE of Indios, Puerto Rico
  14. 2.2 4 km SE of La Parguera, Puerto Rico
  15. 1.8 3 km NNE of Lluveras, 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.