QuakeIndex

Earthquake · reviewed by a seismologist

M 1.7md

7 km NNE of Yaurel, Puerto Rico

· 15 km deep · released about 10 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N San Lorenzo Municipio 9 kmPatillas Municipio 11 kmCayey Municipio 12 kmArroyo Municipio 13 kmCaguas Municipio 14 kmCidra Municipio 16 kmGuayama Municipio 17 kmMaunabo Municipio 18 kmYabucoa Municipio 19 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 1.7 (md)
Depth
15 km below the surface
Felt
no reports yet
Nearest
San Lorenzo Municipio, 9 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 494 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 10 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.7 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 92× the energy of this one
  4. This earthquake M 1.7 about 10 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 18.0895, -66.0370. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
San Lorenzo Municipio, PR 9 km (6 mi) SW of here earthquakes near San Lorenzo Municipio
Patillas Municipio, PR 11 km (7 mi) NNW of here earthquakes near Patillas Municipio
Cayey Municipio, PR 12 km (8 mi) E of here earthquakes near Cayey Municipio
Arroyo Municipio, PR 13 km (8 mi) N of here earthquakes near Arroyo Municipio
Caguas Municipio, PR 14 km (8 mi) S of here earthquakes near Caguas Municipio
Cidra Municipio, PR 16 km (10 mi) SE of here earthquakes near Cidra Municipio

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

Aftershocks so far

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

  1. 2.2 4 km S of Salinas, Puerto Rico
  2. 2.4 6 km N of Villalba, Puerto Rico
  3. 2.8 2 km ENE of Parcelas Nuevas, Puerto Rico
  4. 2.4 16 km SSW of Central Aguirre, Puerto Rico
  5. 1.8 5 km W of Rosa Sanchez, Puerto Rico
  6. 2.0 5 km WSW of Central Aguirre, Puerto Rico
  7. 1.8 4 km E of Pastos, Puerto Rico
  8. 2.3 2 km E of Mariano Colón, Puerto Rico
  9. 2.0 4 km SW of Jagual, Puerto Rico
  10. 2.1 4 km N of Orocovis, Puerto Rico
  11. 1.9 6 km ENE of Orocovis, Puerto Rico
  12. 2.4 1 km W of Río Cañas Abajo, Puerto Rico
  13. 2.1 2 km N of Santa Clara, Puerto Rico
  14. 1.9 0 km ESE of Vázquez, Puerto Rico
  15. 2.2 6 km SSW of Playita Cortada, 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 2016-12-05 — it released about 23,000 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.