QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

5 km NE of La Parguera, Puerto Rico

· 11 km deep · released about 9.6 lb of TNT

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10 km30 km60 km120 km N Lajas Municipio 5 kmSabana Grande Municipio 10 kmGuánica Municipio 11 kmSan Germán Municipio 12 kmYauco Municipio 18 kmHormigueros Municipio 19 kmCabo Rojo Municipio 19 kmMaricao Municipio 20 kmGuayanilla Municipio 22 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 1.7 (md)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Lajas Municipio, 5 km SW
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 9.6 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,100,000× the energy of this one
  3. Around the size people start to feel M 3.0 99× the energy of this one
  4. This earthquake M 1.7 about 9.6 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 18.0060, -67.0018. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lajas Municipio, PR 5 km (3 mi) NE of here earthquakes near Lajas Municipio
Sabana Grande Municipio, PR 10 km (6 mi) SSW of here earthquakes near Sabana Grande Municipio
Guánica Municipio, PR 11 km (7 mi) NW of here earthquakes near Guánica Municipio
San Germán Municipio, PR 12 km (7 mi) SSE of here earthquakes near San Germán Municipio
Yauco Municipio, PR 18 km (11 mi) WSW of here earthquakes near Yauco Municipio
Hormigueros Municipio, PR 19 km (12 mi) SE 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. 1.9 6 km SSW of Guánica, Puerto Rico
  2. 2.0 4 km ENE of Hormigueros, Puerto Rico
  3. 1.6 6 km SW of La Parguera, Puerto Rico
  4. 1.9 5 km NNW of Santo Domingo, Puerto Rico
  5. 2.1 5 km N of Lluveras, Puerto Rico
  6. 2.1 20 km S of La Parguera, Puerto Rico
  7. 2.5 7 km WSW of Rincón, Puerto Rico
  8. 2.3 16 km SSW of Pole Ojea, Puerto Rico
  9. 1.9 12 km SSE of Indios, Puerto Rico
  10. 2.2 4 km SE of La Parguera, Puerto Rico
  11. 2.0 6 km SSE of Lares, Puerto Rico
  12. 1.8 3 km NNE of Lluveras, Puerto Rico
  13. 2.7 11 km SW of La Playa, Puerto Rico
  14. 2.0 1 km S of Sabana Eneas, Puerto Rico
  15. 2.2 2 km S of Palmarejo, 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.