QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

30 km NW of Aguadilla, Puerto Rico

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

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Aguadilla Municipio 28 kmRincón Municipio 32 kmAguada Municipio 32 kmMoca Municipio 40 kmIsabela Municipio 40 kmAñasco Municipio 43 kmQuebradillas Municipio 50 kmSan Sebastián Municipio 52 kmCamuy Municipio 57 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
7.0 km below the surface
Felt
no reports yet
Nearest
Aguadilla Municipio, 28 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 547 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 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 6.7 300,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 13,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 9,400× 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 18.5950, -67.3798. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Aguadilla Municipio, PR 28 km (17 mi) WNW of here earthquakes near Aguadilla Municipio
Rincón Municipio, PR 32 km (20 mi) NNW of here earthquakes near Rincón Municipio
Aguada Municipio, PR 32 km (20 mi) NW of here earthquakes near Aguada Municipio
Moca Municipio, PR 40 km (25 mi) NW of here earthquakes near Moca Municipio
Isabela Municipio, PR 40 km (25 mi) WNW of here earthquakes near Isabela Municipio
Añasco Municipio, PR 43 km (27 mi) NW of here earthquakes near Añasco 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. 3.2 44 km NW of San Antonio, Puerto Rico
  2. 3.5 66 km NW of San Antonio, Puerto Rico
  3. 2.8 20 km SW of Stella, Puerto Rico
  4. 2.8 6 km WNW of Las Marías, Puerto Rico
  5. 2.7 3 km NE of Mayagüez, Puerto Rico
  6. 2.5 16 km WNW of Rincón, Puerto Rico
  7. 2.8 4 km SW of La Playa, Puerto Rico
  8. 2.5 3 km NNE of Mayagüez, Puerto Rico
  9. 2.6 6 km SSW of Stella, Puerto Rico
  10. 2.2 3 km NE of Las Marias, Puerto Rico
  11. 3.1 27 km W of Rincón, Puerto Rico
  12. 2.7 8 km W of Mayagüez, Puerto Rico
  13. 2.9 20 km N of San Antonio, Puerto Rico
  14. 3.0 12 km N of San Antonio, Puerto Rico
  15. 2.7 11 km SW of La Playa, 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 4.8 on 2019-11-29 — it released about 390 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.