QuakeIndex

Earthquake · reviewed by a seismologist

M 2.9md

8 km NNE of Carrizales, Puerto Rico

· 16 km deep · released about 610 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hatillo Municipio 14 kmCamuy Municipio 16 kmArecibo Municipio 17 kmQuebradillas Municipio 20 kmBarceloneta Municipio 24 kmIsabela Municipio 27 kmFlorida Municipio 30 kmManatí Municipio 32 kmUtuado Municipio 33 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 2.9 (md)
Depth
16 km below the surface
Felt
no reports yet
Nearest
Hatillo Municipio, 14 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 754 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 610 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 25,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 18,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.6× the energy of this one
  4. This earthquake M 2.9 about 610 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 18.5597, -66.7690. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hatillo Municipio, PR 14 km (8 mi) NNE of here earthquakes near Hatillo Municipio
Camuy Municipio, PR 16 km (10 mi) NE of here earthquakes near Camuy Municipio
Arecibo Municipio, PR 17 km (11 mi) NW of here earthquakes near Arecibo Municipio
Quebradillas Municipio, PR 20 km (12 mi) ENE of here earthquakes near Quebradillas Municipio
Barceloneta Municipio, PR 24 km (15 mi) WNW of here earthquakes near Barceloneta Municipio
Isabela Municipio, PR 27 km (17 mi) ENE of here earthquakes near Isabela Municipio

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

Aftershocks so far

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

  1. 3.2 10 km NNW of Garrochales, Puerto Rico
  2. 2.6 17 km N of Hatillo, Puerto Rico
  3. 2.9 17 km N of Isabela, Puerto Rico
  4. 2.8 16 km N of Tierras Nuevas Poniente, Puerto Rico
  5. 2.9 9 km NNE of Brenas, Puerto Rico
  6. 2.6 5 km NNW of Arecibo, Puerto Rico
  7. 2.3 4 km SSW of Adjuntas, Puerto Rico
  8. 2.5 5 km WSW of Ciales, Puerto Rico
  9. 3.2 5 km SSE of Mora, Puerto Rico
  10. 3.5 54 km N of Hatillo, Puerto Rico
  11. 2.1 4 km ESE of Las Marías, Puerto Rico
  12. 2.7 10 km SSE of Lares, Puerto Rico
  13. 2.0 2 km S of Adjuntas, Puerto Rico
  14. 3.6 0 km S of Rafael Hernandez, Puerto Rico
  15. 2.7 15 km NNW of Garrochales, 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 200 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.