QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

11 km S of La Parguera, Puerto Rico

· 10 km deep · released about 6.8 lb of TNT

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10 km30 km60 km120 km N Lajas Municipio 12 kmGuánica Municipio 14 kmCabo Rojo Municipio 21 kmSabana Grande Municipio 25 kmSan Germán Municipio 26 kmGuayanilla Municipio 29 kmYauco Municipio 30 kmHormigueros Municipio 31 kmMaricao Municipio 35 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
10 km below the surface
Felt
no reports yet
Nearest
Lajas Municipio, 12 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2827 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 17.8715, -67.0335. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lajas Municipio, PR 12 km (7 mi) S of here earthquakes near Lajas Municipio
Guánica Municipio, PR 14 km (9 mi) SW of here earthquakes near Guánica Municipio
Cabo Rojo Municipio, PR 21 km (13 mi) SE of here earthquakes near Cabo Rojo Municipio
Sabana Grande Municipio, PR 25 km (16 mi) SSW of here earthquakes near Sabana Grande Municipio
San Germán Municipio, PR 26 km (16 mi) S of here earthquakes near San Germán Municipio
Guayanilla Municipio, PR 29 km (18 mi) WSW of here earthquakes near Guayanilla Municipio

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

Aftershocks so far

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

  1. 1.9 7 km SSW of Guánica, Puerto Rico
  2. 1.6 8 km SSE of Maria Antonia, Puerto Rico
  3. 1.9 1 km SW of San Germán, Puerto Rico
  4. 2.5 12 km E of Maricao, Puerto Rico
  5. 2.2 11 km SW of La Playa, Puerto Rico
  6. 2.9 10 km SSW of Stella, Puerto Rico
  7. 1.8 8 km S of La Parguera, Puerto Rico
  8. 2.0 6 km NW of Adjuntas, Puerto Rico
  9. 1.5 7 km ESE of Adjuntas, Puerto Rico
  10. 1.5 1 km NE of Yauco, Puerto Rico
  11. 1.8 3 km WNW of Palmarejo, Puerto Rico
  12. 1.8 1 km S of San Germán, Puerto Rico
  13. 2.0 4 km S of Guánica, Puerto Rico
  14. 2.3 4 km ENE of Hormigueros, Puerto Rico
  15. 1.5 3 km SE of La Parguera, 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.