QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

10 km N of Yauco, Puerto Rico

· 26 km deep · released about 19 lb of TNT

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10 km30 km60 km120 km N Yauco Municipio 5 kmAdjuntas Municipio 10 kmMaricao Municipio 12 kmSabana Grande Municipio 12 kmGuayanilla Municipio 14 kmPeñuelas Municipio 16 kmLares Municipio 17 kmLas Marías Municipio 19 kmSan Germán Municipio 21 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
26 km below the surface
Felt
no reports yet
Nearest
Yauco Municipio, 5 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2869 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 19 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 5.8 790,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 560,000× the energy of this one
  3. Around the size people start to feel M 3.0 50× the energy of this one
  4. This earthquake M 1.9 about 19 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 18.1251, -66.8375. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Yauco Municipio, PR 5 km (3 mi) NNE of here earthquakes near Yauco Municipio
Adjuntas Municipio, PR 10 km (7 mi) SW of here earthquakes near Adjuntas Municipio
Maricao Municipio, PR 12 km (7 mi) ESE of here earthquakes near Maricao Municipio
Sabana Grande Municipio, PR 12 km (8 mi) ENE of here earthquakes near Sabana Grande Municipio
Guayanilla Municipio, PR 14 km (9 mi) NNW of here earthquakes near Guayanilla Municipio
Peñuelas Municipio, PR 16 km (10 mi) NW of here earthquakes near Peñuelas Municipio

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

Aftershocks so far

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

  1. 1.7 1 km WNW of Ponce, Puerto Rico
  2. 2.1 6 km ENE of Espino, Puerto Rico
  3. 1.6 3 km SSE of Mayagüez, Puerto Rico
  4. 2.5 2 km NW of Mayagüez, Puerto Rico
  5. 1.9 4 km WSW of Maricao, Puerto Rico
  6. 2.0 7 km WSW of Maricao, Puerto Rico
  7. 2.8 3 km W of Mayagüez, Puerto Rico
  8. 1.9 5 km SSW of Adjuntas, Puerto Rico
  9. 1.8 10 km SSE of La Parguera, Puerto Rico
  10. 1.5 Puerto Rico region
  11. 2.1 1 km NNW of Sabana Grande, Puerto Rico
  12. 2.0 0 km W of Sabana Grande, Puerto Rico
  13. 2.3 1 km SW of Espino, Puerto Rico
  14. 2.4 10 km SE of Pole Ojea, Puerto Rico
  15. 2.7 1 km SE of Stella, 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.