QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

6 km NNW of Jayuya, Puerto Rico

· 28 km deep · released about 14 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jayuya Municipio 7 kmUtuado Municipio 8 kmCiales Municipio 12 kmFlorida Municipio 13 kmAdjuntas Municipio 17 kmArecibo Municipio 20 kmOrocovis Municipio 20 kmVillalba Municipio 22 kmMorovis 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
28 km below the surface
Felt
no reports yet
Nearest
Jayuya Municipio, 7 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2827 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 14 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 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 760,000× the energy of this one
  3. Around the size people start to feel M 3.0 68× the energy of this one
  4. This earthquake M 1.8 about 14 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 18.2651, -66.6228. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jayuya Municipio, PR 7 km (4 mi) NNW of here earthquakes near Jayuya Municipio
Utuado Municipio, PR 8 km (5 mi) E of here earthquakes near Utuado Municipio
Ciales Municipio, PR 12 km (7 mi) WSW of here earthquakes near Ciales Municipio
Florida Municipio, PR 13 km (8 mi) SSW of here earthquakes near Florida Municipio
Adjuntas Municipio, PR 17 km (11 mi) ENE of here earthquakes near Adjuntas Municipio
Arecibo Municipio, PR 20 km (12 mi) SSE of here earthquakes near Arecibo 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 NE of Yauco, Puerto Rico
  2. 1.6 7 km SSW of Estancias de Florida, Puerto Rico
  3. 2.6 3 km N of Cidra, Puerto Rico
  4. 2.7 5 km S of Jayuya, Puerto Rico
  5. 2.0 4 km S of Guánica, Puerto Rico
  6. 1.7 3 km SSE of Santa Isabel, Puerto Rico
  7. 1.8 4 km SE of Indios, Puerto Rico
  8. 2.1 1 km S of Guayanilla, Puerto Rico
  9. 2.1 0 km SW of Toa Alta, Puerto Rico
  10. 1.9 11 km ESE of Maricao, Puerto Rico
  11. 1.5 1 km SSW of Liborio Negron Torres, Puerto Rico
  12. 1.8 3 km W of Rafael Capo, Puerto Rico
  13. 2.1 2 km NE of San Germán, Puerto Rico
  14. 2.0 3 km SW of Adjuntas, Puerto Rico
  15. 2.2 4 km ENE of Isabela, 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.