QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

0 km SW of Santo Domingo, Puerto Rico

· 14 km deep · released about 22 lb of TNT

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10 km30 km60 km120 km N Peñuelas Municipio 5 kmGuayanilla Municipio 7 kmYauco Municipio 11 kmAdjuntas Municipio 14 kmPonce Municipio 17 kmSabana Grande Municipio 20 kmGuánica Municipio 21 kmMaricao Municipio 23 kmUtuado Municipio 25 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
Peñuelas Municipio, 5 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2941 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 22 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 5.8 680,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 480,000× the energy of this one
  3. Around the size people start to feel M 3.0 43× the energy of this one
  4. This earthquake M 1.9 about 22 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 18.0560, -66.7576. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Peñuelas Municipio, PR 5 km (3 mi) NW of here earthquakes near Peñuelas Municipio
Guayanilla Municipio, PR 7 km (4 mi) NE of here earthquakes near Guayanilla Municipio
Yauco Municipio, PR 11 km (7 mi) ESE of here earthquakes near Yauco Municipio
Adjuntas Municipio, PR 14 km (9 mi) S of here earthquakes near Adjuntas Municipio
Ponce Municipio, PR 17 km (11 mi) WNW of here earthquakes near Ponce Municipio
Sabana Grande Municipio, PR 20 km (13 mi) E of here earthquakes near Sabana Grande Municipio

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

Aftershocks so far

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

  1. 1.8 7 km S of Tallaboa, Puerto Rico
  2. 1.7 2 km N of Maricao, Puerto Rico
  3. 1.9 4 km SW of Adjuntas, Puerto Rico
  4. 2.4 3 km N of Maricao, Puerto Rico
  5. 1.9 1 km SE of Lajas, Puerto Rico
  6. 1.5 3 km ENE of San Germán, Puerto Rico
  7. 2.1 2 km E of San Sebastián, Puerto Rico
  8. 1.9 4 km SW of Adjuntas, Puerto Rico
  9. 2.1 5 km SE of Lajas, Puerto Rico
  10. 2.5 7 km E of Mayagüez, Puerto Rico
  11. 1.9 8 km NW of Santo Domingo, Puerto Rico
  12. 1.8 4 km NNE of Yauco, Puerto Rico
  13. 1.9 1 km N of Las Ochenta, Puerto Rico
  14. 1.7 6 km SW of Guánica, Puerto Rico
  15. 1.8 1 km W of Mayagüez, 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.