QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

4 km N of Animas, Puerto Rico

· 92 km deep · released about 890 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Arecibo Municipio 8 kmBarceloneta Municipio 8 kmFlorida Municipio 15 kmManatí Municipio 15 kmHatillo Municipio 18 kmCiales Municipio 24 kmVega Baja Municipio 25 kmCamuy Municipio 25 kmUtuado 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 3.0 (md)
Depth
92 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Arecibo Municipio, 8 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1513 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 1 person has reported feeling it to USGS.

How big was it?

This earthquake released about 890 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 380,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 17,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 12,000× the energy of this one
  4. This earthquake M 3.0 about 890 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 18.4872, -66.6298. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Arecibo Municipio, PR 8 km (5 mi) NE of here earthquakes near Arecibo Municipio
Barceloneta Municipio, PR 8 km (5 mi) WNW of here earthquakes near Barceloneta Municipio
Florida Municipio, PR 15 km (9 mi) NNW of here earthquakes near Florida Municipio
Manatí Municipio, PR 15 km (9 mi) WNW of here earthquakes near Manatí Municipio
Hatillo Municipio, PR 18 km (11 mi) ENE of here earthquakes near Hatillo Municipio
Ciales Municipio, PR 24 km (15 mi) NNW of here earthquakes near Ciales Municipio

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

Aftershocks so far

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

  1. 3.0 9 km SSE of Lares, Puerto Rico
  2. 2.5 2 km S of Barranquitas, Puerto Rico
  3. 1.9 4 km NNE of Brenas, Puerto Rico
  4. 2.7 4 km NW of Las Marías, Puerto Rico
  5. 3.4 45 km N of Brenas, Puerto Rico
  6. 3.6 24 km N of Dorado, Puerto Rico
  7. 2.8 23 km NNE of Tierras Nuevas Poniente, Puerto Rico
  8. 2.9 13 km NNE of Carrizales, Puerto Rico
  9. 2.8 21 km NNW of Camuy, Puerto Rico
  10. 2.8 9 km NNE of Quebradillas, Puerto Rico
  11. 3.3 14 km NNE of Carrizales, Puerto Rico
  12. 3.1 23 km NNE of Arecibo, Puerto Rico
  13. 3.1 Puerto Rico region
  14. 3.4 13 km NNE of Tierras Nuevas Poniente, Puerto Rico
  15. 2.7 2 km N of Orocovis, 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 130 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.