QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

6 km NW of Villalba, Puerto Rico

· 19 km deep · released about 25 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jayuya Municipio 7 kmVillalba Municipio 8 kmOrocovis Municipio 11 kmCiales Municipio 13 kmMorovis Municipio 20 kmCoamo Municipio 20 kmJuana Díaz Municipio 20 kmPonce Municipio 21 kmUtuado Municipio 21 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
19 km below the surface
Felt
no reports yet
Nearest
Jayuya Municipio, 7 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2680 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 18.1758, -66.5301. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jayuya Municipio, PR 7 km (4 mi) ESE of here earthquakes near Jayuya Municipio
Villalba Municipio, PR 8 km (5 mi) NW of here earthquakes near Villalba Municipio
Orocovis Municipio, PR 11 km (7 mi) WSW of here earthquakes near Orocovis Municipio
Ciales Municipio, PR 13 km (8 mi) S of here earthquakes near Ciales Municipio
Morovis Municipio, PR 20 km (12 mi) SW of here earthquakes near Morovis Municipio
Coamo Municipio, PR 20 km (12 mi) WNW of here earthquakes near Coamo 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. 1.5 1 km NNE of Sabana Grande, Puerto Rico
  2. 1.8 7 km NNW of Villalba, Puerto Rico
  3. 2.1 7 km S of Salinas, Puerto Rico
  4. 1.7 11 km SW of Central Aguirre, Puerto Rico
  5. 1.9 16 km N of Tierras Nuevas Poniente, Puerto Rico
  6. 1.8 4 km NE of Yauco, Puerto Rico
  7. 1.6 3 km W of Tallaboa, Puerto Rico
  8. 1.5 6 km NNE of Lluveras, Puerto Rico
  9. 2.0 2 km WSW of Tallaboa, Puerto Rico
  10. 1.5 5 km NE of Sabana Grande, Puerto Rico
  11. 2.4 12 km S of Salinas, Puerto Rico
  12. 1.9 5 km N of Peñuelas, Puerto Rico
  13. 2.1 8 km S of Indios, Puerto Rico
  14. 1.9 5 km SE of La Plena, Puerto Rico
  15. 1.6 Puerto Rico region

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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.6 on 2019-03-12 — it released about 9,400 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.