QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

7 km SW of Jayuya, Puerto Rico

· 17 km deep · released about 13 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jayuya Municipio 8 kmAdjuntas Municipio 12 kmUtuado Municipio 12 kmPeñuelas Municipio 18 kmVillalba Municipio 19 kmCiales Municipio 19 kmPonce Municipio 20 kmOrocovis Municipio 23 kmFlorida Municipio 24 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
17 km below the surface
Felt
no reports yet
Nearest
Jayuya Municipio, 8 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2598 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 13 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 1,200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 840,000× the energy of this one
  3. Around the size people start to feel M 3.0 75× the energy of this one
  4. This earthquake M 1.8 about 13 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 18.1731, -66.6473. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jayuya Municipio, PR 8 km (5 mi) WSW of here earthquakes near Jayuya Municipio
Adjuntas Municipio, PR 12 km (7 mi) E of here earthquakes near Adjuntas Municipio
Utuado Municipio, PR 12 km (8 mi) SSE of here earthquakes near Utuado Municipio
Peñuelas Municipio, PR 18 km (11 mi) NNE of here earthquakes near Peñuelas Municipio
Villalba Municipio, PR 19 km (12 mi) WNW of here earthquakes near Villalba Municipio
Ciales Municipio, PR 19 km (12 mi) SW of here earthquakes near Ciales Municipio

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

Aftershocks so far

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

  1. 1.5 8 km S of Salinas, Puerto Rico
  2. 1.9 0 km WNW of Lajas, Puerto Rico
  3. 1.9 1 km NNE of Lluveras, Puerto Rico
  4. 1.8 10 km SSW of Guánica, Puerto Rico
  5. 2.0 4 km ENE of Mayagüez, Puerto Rico
  6. 2.0 1 km S of Manatí, Puerto Rico
  7. 2.6 5 km SSW of Indios, Puerto Rico
  8. 1.8 4 km N of Sabana Grande, Puerto Rico
  9. 1.8 2 km NNW of La Parguera, Puerto Rico
  10. 1.7 4 km ESE of Ponce, Puerto Rico
  11. 1.9 8 km S of Indios, Puerto Rico
  12. 1.6 2 km SSE of Ponce, Puerto Rico
  13. 1.5 5 km WSW of Naranjito, Puerto Rico
  14. 1.8 6 km NE of San Sebastián, Puerto Rico
  15. 1.9 2 km S of Adjuntas, 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.