QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

6 km SSE of Ponce, Puerto Rico

· 6.0 km deep · released about 25 lb of TNT

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10 km30 km60 km120 km N Ponce Municipio 6 kmJuana Díaz Municipio 13 kmPeñuelas Municipio 16 kmGuayanilla Municipio 22 kmSanta Isabel Municipio 23 kmVillalba Municipio 24 kmJayuya Municipio 29 kmAdjuntas Municipio 31 kmCoamo Municipio 31 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
6.0 km below the surface
Felt
no reports yet
Nearest
Ponce Municipio, 6 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2911 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 25 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 600,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 420,000× the energy of this one
  3. Around the size people start to feel M 3.0 38× the energy of this one
  4. This earthquake M 1.9 about 25 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 17.9511, -66.6015. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ponce Municipio, PR 6 km (4 mi) S of here earthquakes near Ponce Municipio
Juana Díaz Municipio, PR 13 km (8 mi) WSW of here earthquakes near Juana Díaz Municipio
Peñuelas Municipio, PR 16 km (10 mi) ESE of here earthquakes near Peñuelas Municipio
Guayanilla Municipio, PR 22 km (13 mi) ESE of here earthquakes near Guayanilla Municipio
Santa Isabel Municipio, PR 23 km (14 mi) W of here earthquakes near Santa Isabel Municipio
Villalba Municipio, PR 24 km (15 mi) SW of here earthquakes near Villalba Municipio

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

Aftershocks so far

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

  1. 2.0 10 km SSW of Guánica, Puerto Rico
  2. 2.0 9 km SSW of Guánica, Puerto Rico
  3. 2.0 1 km WSW of Jauca, Puerto Rico
  4. 1.5 1 km NE of Guayanilla, Puerto Rico
  5. 1.6 Puerto Rico region
  6. 1.6 6 km NE of Sabana Grande, Puerto Rico
  7. 2.2 3 km WSW of Tallaboa, Puerto Rico
  8. 1.8 6 km NE of La Parguera, Puerto Rico
  9. 1.8 20 km S of Guánica, Puerto Rico
  10. 2.3 3 km NW of Guayabal, Puerto Rico
  11. 1.7 12 km S of Jauca, Puerto Rico
  12. 1.7 1 km WSW of Sabana Grande, Puerto Rico
  13. 1.8 1 km WSW of Sabana Grande, Puerto Rico
  14. 1.8 1 km SSW of Lluveras, Puerto Rico
  15. 2.2 2 km SW of Lluveras, 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.