QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

1 km NW of Coto Laurel, Puerto Rico

· 17 km deep · released about 6.6 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Ponce Municipio 8 kmJuana Díaz Municipio 10 kmVillalba Municipio 12 kmJayuya Municipio 18 kmPeñuelas Municipio 18 kmSanta Isabel Municipio 21 kmCoamo Municipio 22 kmOrocovis Municipio 22 kmAdjuntas Municipio 25 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
17 km below the surface
Felt
no reports yet
Nearest
Ponce Municipio, 8 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2731 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 6.6 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 2,300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,600,000× the energy of this one
  3. Around the size people start to feel M 3.0 140× the energy of this one
  4. This earthquake M 1.6 about 6.6 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 18.0556, -66.5588. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ponce Municipio, PR 8 km (5 mi) NE of here earthquakes near Ponce Municipio
Juana Díaz Municipio, PR 10 km (6 mi) NW of here earthquakes near Juana Díaz Municipio
Villalba Municipio, PR 12 km (8 mi) SW of here earthquakes near Villalba Municipio
Jayuya Municipio, PR 18 km (11 mi) S of here earthquakes near Jayuya Municipio
Peñuelas Municipio, PR 18 km (11 mi) E of here earthquakes near Peñuelas Municipio
Santa Isabel Municipio, PR 21 km (13 mi) WNW of here earthquakes near Santa Isabel Municipio

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

Aftershocks so far

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

  1. 1.8 3 km SW of Maricao, Puerto Rico
  2. 2.1 18 km S of Guánica, Puerto Rico
  3. 1.8 2 km N of Lluveras, Puerto Rico
  4. 1.7 3 km N of Lluveras, Puerto Rico
  5. 1.7 5 km NW of Adjuntas, Puerto Rico
  6. 2.1 1 km WSW of Los Llanos, Puerto Rico
  7. 2.8 0 km NNW of Tierras Nuevas Poniente, Puerto Rico
  8. 1.5 4 km SSE of Adjuntas, Puerto Rico
  9. 1.5 5 km NW of Coamo, Puerto Rico
  10. 1.8 0 km SSE of Jobos, Puerto Rico
  11. 1.9 2 km S of Barahona, Puerto Rico
  12. 2.0 18 km S of Indios, Puerto Rico
  13. 1.9 4 km W of Cayuco, Puerto Rico
  14. 1.7 18 km SSW of Tallaboa, Puerto Rico
  15. 1.9 11 km E of Maricao, 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 36,000 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.