QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9Md

3 km SW of Capitanejo, Puerto Rico

· 5.0 km deep · released about 21 lb of TNT

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10 km30 km60 km120 km N Ponce Municipio 6 kmJuana Díaz Municipio 7 kmVillalba Municipio 18 kmSanta Isabel Municipio 18 kmPeñuelas Municipio 19 kmCoamo Municipio 24 kmJayuya Municipio 25 kmGuayanilla Municipio 26 kmOrocovis Municipio 28 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
5.0 km below the surface
Felt
no reports yet
Nearest
Ponce Municipio, 6 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3751 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 21 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 5.8 710,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 500,000× the energy of this one
  3. Around the size people start to feel M 3.0 45× the energy of this one
  4. This earthquake M 1.9 about 21 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 17.9901, -66.5550. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ponce Municipio, PR 6 km (3 mi) ESE of here earthquakes near Ponce Municipio
Juana Díaz Municipio, PR 7 km (4 mi) W of here earthquakes near Juana Díaz Municipio
Villalba Municipio, PR 18 km (11 mi) SSW of here earthquakes near Villalba Municipio
Santa Isabel Municipio, PR 18 km (11 mi) WNW of here earthquakes near Santa Isabel Municipio
Peñuelas Municipio, PR 19 km (12 mi) ESE of here earthquakes near Peñuelas Municipio
Coamo Municipio, PR 24 km (15 mi) WSW of here earthquakes near Coamo 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. 2.6 12 km S of Lares, Puerto Rico
  2. 1.5 12 km SSW of Tallaboa, Puerto Rico
  3. 1.8 0 km NW of Luis Llorens Torres, Puerto Rico
  4. 1.6 2 km WSW of Sabana Grande, Puerto Rico
  5. 2.1 2 km WSW of Río Cañas Abajo, Puerto Rico
  6. 1.6 7 km NE of Maricao, Puerto Rico
  7. 2.3 0 km SSE of Guayanilla, Puerto Rico
  8. 2.1 3 km SSE of Tallaboa, Puerto Rico
  9. 2.1 14 km S of Ponce, Puerto Rico
  10. 1.7 2 km NW of Lluveras, Puerto Rico
  11. 1.9 4 km NE of Lluveras, Puerto Rico
  12. 2.0 17 km S of Guánica, Puerto Rico
  13. 2.1 8 km E of Jayuya, Puerto Rico
  14. 1.6 2 km WSW of Lluveras, Puerto Rico
  15. 2.1 18 km S of Tallaboa, 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.