QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

5 km NNE of Villalba, Puerto Rico

· 26 km deep · released about 17 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Villalba Municipio 5 kmOrocovis Municipio 7 kmJayuya Municipio 12 kmCiales Municipio 14 kmCoamo Municipio 15 kmMorovis Municipio 17 kmBarranquitas Municipio 18 kmJuana Díaz Municipio 20 kmCorozal 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 1.8 (md)
Depth
26 km below the surface
Felt
no reports yet
Nearest
Villalba Municipio, 5 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3191 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 17 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 870,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 620,000× the energy of this one
  3. Around the size people start to feel M 3.0 55× the energy of this one
  4. This earthquake M 1.8 about 17 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 18.1750, -66.4811. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Villalba Municipio, PR 5 km (3 mi) N of here earthquakes near Villalba Municipio
Orocovis Municipio, PR 7 km (4 mi) SW of here earthquakes near Orocovis Municipio
Jayuya Municipio, PR 12 km (7 mi) ESE of here earthquakes near Jayuya Municipio
Ciales Municipio, PR 14 km (9 mi) SSE of here earthquakes near Ciales Municipio
Coamo Municipio, PR 15 km (9 mi) WNW of here earthquakes near Coamo Municipio
Morovis Municipio, PR 17 km (11 mi) SSW of here earthquakes near Morovis Municipio

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

Aftershocks so far

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

  1. 3.0 4 km SE of G. L. Garcia, Puerto Rico
  2. 3.1 8 km NNW of Arecibo, Puerto Rico
  3. 1.9 12 km SSE of Indios, Puerto Rico
  4. 2.0 6 km SSE of Lares, Puerto Rico
  5. 1.8 3 km NNE of Lluveras, Puerto Rico
  6. 2.2 7 km SSW of Tallaboa, Puerto Rico
  7. 1.9 11 km S of Tallaboa, Puerto Rico
  8. 1.7 10 km SSW of Tallaboa, Puerto Rico
  9. 2.0 9 km NNE of Tallaboa, Puerto Rico
  10. 2.2 9 km SSW of Tallaboa, Puerto Rico
  11. 1.5 10 km S of Jobos, Puerto Rico
  12. 1.6 8 km S of Tallaboa, Puerto Rico
  13. 1.8 8 km SSW of Tallaboa, Puerto Rico
  14. 2.0 7 km SSW of Tallaboa, Puerto Rico
  15. 2.3 8 km SSW 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.