QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

6 km ESE of Jayuya, Puerto Rico

· 18 km deep · released about 7.8 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jayuya Municipio 5 kmVillalba Municipio 10 kmOrocovis Municipio 11 kmCiales Municipio 11 kmMorovis Municipio 19 kmUtuado Municipio 19 kmFlorida Municipio 19 kmCoamo Municipio 22 kmJuana Díaz Municipio 23 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
18 km below the surface
Felt
no reports yet
Nearest
Jayuya Municipio, 5 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2738 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 18.1953, -66.5391. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Jayuya Municipio, PR 5 km (3 mi) ESE of here earthquakes near Jayuya Municipio
Villalba Municipio, PR 10 km (6 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 11 km (7 mi) SSW of here earthquakes near Ciales Municipio
Morovis Municipio, PR 19 km (12 mi) SW of here earthquakes near Morovis Municipio
Utuado Municipio, PR 19 km (12 mi) ESE of here earthquakes near Utuado 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. 1.6 3 km SSE of Adjuntas, Puerto Rico
  2. 1.6 3 km WNW of Santo Domingo, Puerto Rico
  3. 1.8 5 km SSE of Adjuntas, Puerto Rico
  4. 1.8 5 km S of Adjuntas, Puerto Rico
  5. 2.1 5 km NNE of Dorado, Puerto Rico
  6. 1.9 1 km E of Jauca, Puerto Rico
  7. 2.5 1 km ESE of Toa Baja, Puerto Rico
  8. 2.2 Puerto Rico region
  9. 1.9 6 km ESE of Maricao, Puerto Rico
  10. 2.2 11 km NNE of Arecibo, Puerto Rico
  11. 1.7 6 km ESE of Jayuya, Puerto Rico
  12. 1.5 4 km SSW of Salinas, Puerto Rico
  13. 1.8 2 km SE of Salinas, Puerto Rico
  14. 2.3 Puerto Rico region
  15. 1.8 8 km NNW of Brenas, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.6 on 2019-03-12 — it released about 31,000 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.