QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

5 km N of Peñuelas, Puerto Rico

· 32 km deep · released about 23 lb of TNT

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10 km30 km60 km120 km N Peñuelas Municipio 9 kmAdjuntas Municipio 9 kmGuayanilla Municipio 14 kmYauco Municipio 14 kmPonce Municipio 17 kmUtuado Municipio 19 kmJayuya Municipio 19 kmMaricao Municipio 24 kmSabana Grande Municipio 24 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
32 km below the surface
Felt
no reports yet
Nearest
Peñuelas Municipio, 9 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2664 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 23 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 5.8 660,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 470,000× the energy of this one
  3. Around the size people start to feel M 3.0 42× the energy of this one
  4. This earthquake M 1.9 about 23 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 18.1051, -66.7240. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Peñuelas Municipio, PR 9 km (5 mi) N of here earthquakes near Peñuelas Municipio
Adjuntas Municipio, PR 9 km (6 mi) SSE of here earthquakes near Adjuntas Municipio
Guayanilla Municipio, PR 14 km (8 mi) NE of here earthquakes near Guayanilla Municipio
Yauco Municipio, PR 14 km (9 mi) E of here earthquakes near Yauco Municipio
Ponce Municipio, PR 17 km (11 mi) NW of here earthquakes near Ponce Municipio
Utuado Municipio, PR 19 km (12 mi) S of here earthquakes near Utuado 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 2 km WSW of Río Cañas Abajo, Puerto Rico
  2. 1.6 2 km SSW of Río Cañas Abajo, Puerto Rico
  3. 2.0 10 km E of Maricao, Puerto Rico
  4. 1.9 1 km WSW of Río Cañas Abajo, Puerto Rico
  5. 1.9 Mona Passage
  6. 2.4 2 km SW of Río Cañas Abajo, Puerto Rico
  7. 1.6 2 km W of Río Cañas Abajo, Puerto Rico
  8. 1.7 2 km WSW of Río Cañas Abajo, Puerto Rico
  9. 1.9 2 km WSW of Río Cañas Abajo, Puerto Rico
  10. 2.0 3 km SSE of Salinas, Puerto Rico
  11. 1.8 7 km SE of Maricao, Puerto Rico
  12. 1.9 0 km NW of Fuig, Puerto Rico
  13. 1.9 16 km SSW of Guánica, Puerto Rico
  14. 2.5 1 km NW of Jauca, Puerto Rico
  15. 1.7 2 km S of Playita Cortada, 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.