QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

3 km NE of Río Cañas Abajo, Puerto Rico

· 5.0 km deep · released about 6.2 lb of TNT

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10 km30 km60 km120 km N Juana Díaz Municipio 8 kmVillalba Municipio 9 kmCoamo Municipio 11 kmSanta Isabel Municipio 13 kmOrocovis Municipio 18 kmPonce Municipio 18 kmAibonito Municipio 21 kmSalinas Municipio 21 kmBarranquitas Municipio 21 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 1.5 (md)
Depth
5.0 km below the surface
Felt
no reports yet
Nearest
Juana Díaz Municipio, 8 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2680 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 6.2 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,700,000× the energy of this one
  3. Around the size people start to feel M 3.0 150× the energy of this one
  4. This earthquake M 1.5 about 6.2 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 18.0555, -66.4443. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Juana Díaz Municipio, PR 8 km (5 mi) NE of here earthquakes near Juana Díaz Municipio
Villalba Municipio, PR 9 km (6 mi) SSE of here earthquakes near Villalba Municipio
Coamo Municipio, PR 11 km (7 mi) WSW of here earthquakes near Coamo Municipio
Santa Isabel Municipio, PR 13 km (8 mi) NNW of here earthquakes near Santa Isabel Municipio
Orocovis Municipio, PR 18 km (11 mi) S of here earthquakes near Orocovis Municipio
Ponce Municipio, PR 18 km (11 mi) ENE of here earthquakes near Ponce Municipio

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

Aftershocks so far

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

  1. 2.4 2 km SW of Río Cañas Abajo, Puerto Rico
  2. 1.5 1 km ENE of Jobos, Puerto Rico
  3. 1.6 2 km W of Río Cañas Abajo, Puerto Rico
  4. 1.7 2 km WSW of Río Cañas Abajo, Puerto Rico
  5. 1.9 2 km WSW of Río Cañas Abajo, Puerto Rico
  6. 2.4 11 km S of Salinas, Puerto Rico
  7. 2.0 3 km SSE of Salinas, Puerto Rico
  8. 2.5 1 km NW of Jauca, Puerto Rico
  9. 1.7 2 km S of Playita Cortada, Puerto Rico
  10. 1.5 1 km NNE of Jobos, Puerto Rico
  11. 1.8 7 km NNW of Villalba, Puerto Rico
  12. 2.1 7 km S of Salinas, Puerto Rico
  13. 1.7 11 km SW of Central Aguirre, Puerto Rico
  14. 1.8 4 km NE of Yauco, Puerto Rico
  15. 1.6 3 km W of Tallaboa, 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 39,000 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.