QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3Md

4 km WNW of Villalba, Puerto Rico

· 35 km deep · released about 85 lb of TNT

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10 km30 km60 km120 km N Villalba Municipio 7 kmJayuya Municipio 9 kmOrocovis Municipio 13 kmCiales Municipio 17 kmJuana Díaz Municipio 17 kmPonce Municipio 18 kmCoamo Municipio 19 kmMorovis Municipio 23 kmUtuado Municipio 23 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 2.3 (Md)
Depth
35 km below the surface
Felt
no reports yet
Nearest
Villalba Municipio, 7 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3474 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 85 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 180,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 130,000× the energy of this one
  3. Around the size people start to feel M 3.0 11× the energy of this one
  4. This earthquake M 2.3 about 85 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 18.1450, -66.5335. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Villalba Municipio, PR 7 km (4 mi) WNW of here earthquakes near Villalba Municipio
Jayuya Municipio, PR 9 km (6 mi) SE of here earthquakes near Jayuya Municipio
Orocovis Municipio, PR 13 km (8 mi) SW of here earthquakes near Orocovis Municipio
Ciales Municipio, PR 17 km (10 mi) S of here earthquakes near Ciales Municipio
Juana Díaz Municipio, PR 17 km (11 mi) NNW of here earthquakes near Juana Díaz Municipio
Ponce Municipio, PR 18 km (11 mi) NNE of here earthquakes near Ponce Municipio

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

Aftershocks so far

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

  1. 3.4 2 km NNE of Barahona, Puerto Rico
  2. 2.1 Puerto Rico region
  3. 2.5 2 km WNW of Parcelas Nuevas, Puerto Rico
  4. 2.1 2 km S of Guayanilla, Puerto Rico
  5. 2.4 3 km SW of Río Lajas, Puerto Rico
  6. 2.8 10 km NNE of Arecibo, Puerto Rico
  7. 1.8 0 km NNE of Ciales, Puerto Rico
  8. 2.4 4 km W of Central Aguirre, Puerto Rico
  9. 2.6 6 km ENE of Tierras Nuevas Poniente, Puerto Rico
  10. 2.1 13 km SSE of Guánica, Puerto Rico
  11. 2.0 1 km WSW of Potala Pastillo, Puerto Rico
  12. 2.1 1 km E of Sabana Grande, Puerto Rico
  13. 2.7 3 km SE of Pájaros, Puerto Rico
  14. 1.8 4 km SE of G. L. Garcia, Puerto Rico
  15. 1.5 1 km SW of Indios, 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.