QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

14 km N of Arecibo, Puerto Rico

· 11 km deep · released about 1,100 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hatillo Municipio 19 kmArecibo Municipio 20 kmCamuy Municipio 22 kmBarceloneta Municipio 24 kmQuebradillas Municipio 26 kmManatí Municipio 31 kmFlorida Municipio 32 kmIsabela Municipio 32 kmUtuado Municipio 37 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
11 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Hatillo Municipio, 19 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 493 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 1,100 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 6.7 310,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 14,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 9,800× the energy of this one
  4. This earthquake M 3.0 about 1,100 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 18.6038, -66.7333. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hatillo Municipio, PR 19 km (12 mi) NNE of here earthquakes near Hatillo Municipio
Arecibo Municipio, PR 20 km (12 mi) NNW of here earthquakes near Arecibo Municipio
Camuy Municipio, PR 22 km (14 mi) NE of here earthquakes near Camuy Municipio
Barceloneta Municipio, PR 24 km (15 mi) NW of here earthquakes near Barceloneta Municipio
Quebradillas Municipio, PR 26 km (16 mi) NE of here earthquakes near Quebradillas Municipio
Manatí Municipio, PR 31 km (19 mi) NW of here earthquakes near Manatí 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. 2.0 6 km ENE of Utuado, Puerto Rico
  2. 3.2 45 km N of Carrizales, Puerto Rico
  3. 3.2 15 km NNW of San Antonio, Puerto Rico
  4. 3.2 6 km NNW of Arecibo, Puerto Rico
  5. 2.3 4 km SW of San Sebastián, Puerto Rico
  6. 2.2 4 km NNW of Las Marías, Puerto Rico
  7. 3.2 13 km NNW of Brenas, Puerto Rico
  8. 3.0 14 km N of Carrizales, Puerto Rico
  9. 3.1 39 km N of Hatillo, Puerto Rico
  10. 1.6 1 km WNW of Adjuntas, Puerto Rico
  11. 2.3 3 km SE of Las Marías, Puerto Rico
  12. 2.6 18 km NNE of Isabela, Puerto Rico
  13. 2.3 4 km NE of Maricao, Puerto Rico
  14. 3.1 40 km N of Brenas, Puerto Rico
  15. 2.6 31 km N of Brenas, 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 110 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.