QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

14 km SSW of La Parguera, Puerto Rico

· 14 km deep · released about 18 lb of TNT

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10 km30 km60 km120 km N Lajas Municipio 15 kmCabo Rojo Municipio 18 kmGuánica Municipio 21 kmSan Germán Municipio 29 kmSabana Grande Municipio 30 kmHormigueros Municipio 31 kmGuayanilla Municipio 36 kmYauco Municipio 36 kmMaricao Municipio 39 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 1.9 (md)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Lajas Municipio, 15 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2989 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 18 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 840,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 600,000× the energy of this one
  3. Around the size people start to feel M 3.0 53× the energy of this one
  4. This earthquake M 1.9 about 18 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 17.8586, -67.1016. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Lajas Municipio, PR 15 km (9 mi) SSW of here earthquakes near Lajas Municipio
Cabo Rojo Municipio, PR 18 km (11 mi) SSE of here earthquakes near Cabo Rojo Municipio
Guánica Municipio, PR 21 km (13 mi) WSW of here earthquakes near Guánica Municipio
San Germán Municipio, PR 29 km (18 mi) SSW of here earthquakes near San Germán Municipio
Sabana Grande Municipio, PR 30 km (19 mi) SSW of here earthquakes near Sabana Grande Municipio
Hormigueros Municipio, PR 31 km (19 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. 2.0 4 km WNW of Puerto Real, Puerto Rico
  2. 2.4 4 km S of Stella, Puerto Rico
  3. 1.6 12 km S of La Parguera, Puerto Rico
  4. 1.7 2 km SE of Cabo Rojo, Puerto Rico
  5. 2.3 6 km SW of Las Marías, Puerto Rico
  6. 2.3 4 km NNE of La Parguera, Puerto Rico
  7. 1.8 4 km SSW of Guánica, Puerto Rico
  8. 2.1 4 km NNW of Santo Domingo, Puerto Rico
  9. 1.8 3 km SSE of Mayagüez, Puerto Rico
  10. 1.8 2 km W of La Playa, Puerto Rico
  11. 1.8 6 km W of Puerto Real, Puerto Rico
  12. 1.5 3 km NNW of Sabana Grande, Puerto Rico
  13. 1.8 7 km SSW of Guánica, Puerto Rico
  14. 1.7 7 km W of Puerto Real, Puerto Rico
  15. 1.6 4 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

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