QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

5 km N of Animas, Puerto Rico

· 16 km deep · released about 6.4 lb of TNT

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10 km30 km60 km120 km N Arecibo Municipio 8 kmBarceloneta Municipio 10 kmFlorida Municipio 17 kmManatí Municipio 17 kmHatillo Municipio 17 kmCamuy Municipio 24 kmUtuado Municipio 26 kmCiales Municipio 26 kmVega Baja Municipio 27 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
16 km below the surface
Felt
no reports yet
Nearest
Arecibo Municipio, 8 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2695 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 6.4 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 2,400,000× 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 1.6 about 6.4 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 18.4988, -66.6450. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Arecibo Municipio, PR 8 km (5 mi) NNE of here earthquakes near Arecibo Municipio
Barceloneta Municipio, PR 10 km (6 mi) WNW of here earthquakes near Barceloneta Municipio
Florida Municipio, PR 17 km (10 mi) NNW of here earthquakes near Florida Municipio
Manatí Municipio, PR 17 km (11 mi) WNW of here earthquakes near Manatí Municipio
Hatillo Municipio, PR 17 km (11 mi) ENE of here earthquakes near Hatillo Municipio
Camuy Municipio, PR 24 km (15 mi) ENE of here earthquakes near Camuy Municipio

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

Aftershocks so far

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

  1. 2.2 42 km N of Hatillo, Puerto Rico
  2. 1.9 5 km N of Peñuelas, Puerto Rico
  3. 2.5 10 km NNE of Carrizales, Puerto Rico
  4. 2.3 25 km N of Brenas, Puerto Rico
  5. 2.0 19 km NNE of Tierras Nuevas Poniente, Puerto Rico
  6. 2.1 8 km NNE of Lluveras, Puerto Rico
  7. 2.6 13 km NNW of Garrochales, Puerto Rico
  8. 2.0 5 km SW of Adjuntas, Puerto Rico
  9. 2.7 3 km N of Juncal, Puerto Rico
  10. 2.6 6 km SE of Aceitunas, Puerto Rico
  11. 2.4 13 km NNE of Carrizales, Puerto Rico
  12. 2.3 9 km ESE of Maricao, Puerto Rico
  13. 1.7 5 km NNW of Brenas, Puerto Rico
  14. 2.9 17 km N of Hatillo, Puerto Rico
  15. 2.6 3 km WSW of Ciales, 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 4.4 on 2018-12-09 — it released about 19,000 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.