QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

0 km ESE of Villalba, Puerto Rico

· 20 km deep · released about 7.8 lb of TNT

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10 km30 km60 km120 km N Villalba Municipio 1 kmOrocovis Municipio 12 kmCoamo Municipio 13 kmJuana Díaz Municipio 14 kmJayuya Municipio 15 kmPonce Municipio 19 kmCiales Municipio 19 kmBarranquitas Municipio 20 kmSanta Isabel Municipio 22 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 1.6 (md)
Depth
20 km below the surface
Felt
no reports yet
Nearest
Villalba Municipio, 1 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3218 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 7.8 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 7.8 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 18.1236, -66.4835. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Villalba Municipio, PR 1 km (1 mi) WSW of here earthquakes near Villalba Municipio
Orocovis Municipio, PR 12 km (7 mi) SSW of here earthquakes near Orocovis Municipio
Coamo Municipio, PR 13 km (8 mi) W of here earthquakes near Coamo Municipio
Juana Díaz Municipio, PR 14 km (9 mi) N of here earthquakes near Juana Díaz Municipio
Jayuya Municipio, PR 15 km (9 mi) SE of here earthquakes near Jayuya Municipio
Ponce Municipio, PR 19 km (12 mi) NE 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. 2.1 3 km SW of Potala Pastillo, Puerto Rico
  2. 2.6 5 km N of Brenas, Puerto Rico
  3. 1.9 8 km NNE of Animas, Puerto Rico
  4. 2.8 7 km SSE of Maria Antonia, Puerto Rico
  5. 2.7 10 km NNW of Tierras Nuevas Poniente, Puerto Rico
  6. 1.9 1 km SSW of Guayabal, Puerto Rico
  7. 1.8 5 km NNE of Villalba, Puerto Rico
  8. 3.0 1 km E of Barceloneta, Puerto Rico
  9. 1.7 13 km S of Indios, Puerto Rico
  10. 2.5 2 km WNW of Sabana, Puerto Rico
  11. 2.0 5 km SE of Ponce, Puerto Rico
  12. 2.4 5 km SW of Orocovis, Puerto Rico
  13. 2.2 19 km SSE of Tallaboa, Puerto Rico
  14. 3.3 4 km NE of Brenas, Puerto Rico
  15. 1.8 2 km ESE of Sabana Grande, 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.