QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

9 km S of La Parguera, Puerto Rico

· 13 km deep · released about 7.3 lb of TNT

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10 km30 km60 km120 km N Lajas Municipio 10 kmGuánica Municipio 15 kmCabo Rojo Municipio 18 kmSan Germán Municipio 24 kmSabana Grande Municipio 24 kmHormigueros Municipio 28 kmGuayanilla Municipio 30 kmYauco Municipio 30 kmMaricao Municipio 34 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
13 km below the surface
Felt
no reports yet
Nearest
Lajas Municipio, 10 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3438 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 7.3 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 2,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,500,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.3 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 17.8935, -67.0531. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lajas Municipio, PR 10 km (6 mi) S of here earthquakes near Lajas Municipio
Guánica Municipio, PR 15 km (9 mi) WSW of here earthquakes near Guánica Municipio
Cabo Rojo Municipio, PR 18 km (11 mi) SE of here earthquakes near Cabo Rojo Municipio
San Germán Municipio, PR 24 km (15 mi) S of here earthquakes near San Germán Municipio
Sabana Grande Municipio, PR 24 km (15 mi) SSW of here earthquakes near Sabana Grande Municipio
Hormigueros Municipio, PR 28 km (17 mi) SSE of here earthquakes near Hormigueros Municipio

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

Aftershocks so far

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

  1. 1.8 15 km SSW of Guánica, Puerto Rico
  2. 2.2 36 km S of La Parguera, Puerto Rico
  3. 2.6 0 km NNE of Lajas, Puerto Rico
  4. 2.0 10 km NW of Puerto Real, Puerto Rico
  5. 1.7 11 km NE of Sabana Grande, Puerto Rico
  6. 1.7 23 km S of Tallaboa, Puerto Rico
  7. 1.9 Puerto Rico region
  8. 1.6 6 km WNW of Puerto Real, Puerto Rico
  9. 2.1 10 km ESE of Maricao, Puerto Rico
  10. 3.2 4 km NW of Mayagüez, Puerto Rico
  11. 1.8 3 km NNE of Monte Grande, Puerto Rico
  12. 2.1 8 km WSW of Guánica, Puerto Rico
  13. 2.1 1 km SSE of Stella, Puerto Rico
  14. 1.9 Mona Passage
  15. 2.5 9 km SW 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.