QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5Md

17 km SSW of La Parguera, Puerto Rico

· 11 km deep · released about 5.4 lb of TNT

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10 km30 km60 km120 km N Lajas Municipio 18 kmCabo Rojo Municipio 21 kmGuánica Municipio 23 kmSan Germán Municipio 32 kmSabana Grande Municipio 33 kmHormigueros Municipio 34 kmGuayanilla Municipio 37 kmYauco Municipio 38 kmMaricao Municipio 42 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 1.5 (Md)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Lajas Municipio, 18 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3514 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 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 17.8260, -67.0951. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lajas Municipio, PR 18 km (11 mi) SSW of here earthquakes near Lajas Municipio
Cabo Rojo Municipio, PR 21 km (13 mi) SSE of here earthquakes near Cabo Rojo Municipio
Guánica Municipio, PR 23 km (14 mi) SW of here earthquakes near Guánica Municipio
San Germán Municipio, PR 32 km (20 mi) S of here earthquakes near San Germán Municipio
Sabana Grande Municipio, PR 33 km (20 mi) SSW of here earthquakes near Sabana Grande Municipio
Hormigueros Municipio, PR 34 km (21 mi) S of here earthquakes near Hormigueros Municipio

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

Aftershocks so far

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

  1. 1.9 5 km ENE of La Parguera, Puerto Rico
  2. 2.5 Mona Passage
  3. 2.4 9 km S of Pole Ojea, Puerto Rico
  4. 2.4 14 km SSW of Tallaboa, Puerto Rico
  5. 2.1 7 km WSW of Guánica, Puerto Rico
  6. 2.3 2 km NNE of Mayagüez, Puerto Rico
  7. 1.7 Puerto Rico region
  8. 1.8 12 km SSW of La Parguera, Puerto Rico
  9. 2.2 23 km S of Ponce, Puerto Rico
  10. 2.5 4 km WSW of Las Marías, Puerto Rico
  11. 2.3 0 km WNW of Liborio Negron Torres, Puerto Rico
  12. 1.9 13 km S of Ponce, Puerto Rico
  13. 2.3 15 km S of Guánica, Puerto Rico
  14. 2.2 9 km WNW of Puerto Real, Puerto Rico
  15. 2.0 6 km SSW 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

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