QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

9 km NNW of Sabana, Puerto Rico

· 70 km deep · released about 860 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Vega Baja Municipio 8 kmVega Alta Municipio 13 kmManatí Municipio 14 kmDorado Municipio 16 kmBarceloneta Municipio 18 kmToa Baja Municipio 24 kmMorovis Municipio 24 kmFlorida Municipio 25 kmToa Alta 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
70 km below the surface
Felt
no reports yet
Nearest
Vega Baja Municipio, 8 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 289 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 860 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 6.7 390,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 18,000× 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 860 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 18.5308, -66.4025. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Vega Baja Municipio, PR 8 km (5 mi) N of here earthquakes near Vega Baja Municipio
Vega Alta Municipio, PR 13 km (8 mi) NNW of here earthquakes near Vega Alta Municipio
Manatí Municipio, PR 14 km (8 mi) NE of here earthquakes near Manatí Municipio
Dorado Municipio, PR 16 km (10 mi) WNW of here earthquakes near Dorado Municipio
Barceloneta Municipio, PR 18 km (11 mi) ENE of here earthquakes near Barceloneta Municipio
Toa Baja Municipio, PR 24 km (15 mi) WNW of here earthquakes near Toa Baja Municipio

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

Aftershocks so far

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

  1. 2.0 1 km SSE of Cidra, Puerto Rico
  2. 1.9 3 km WNW of Orocovis, Puerto Rico
  3. 2.8 10 km N of Brenas, Puerto Rico
  4. 2.6 5 km NNW of Aguas Buenas, Puerto Rico
  5. 2.9 46 km N of Brenas, Puerto Rico
  6. 2.8 41 km N of Carrizales, Puerto Rico
  7. 2.8 10 km N of Carrizales, Puerto Rico
  8. 2.7 50 km N of Tierras Nuevas Poniente, Puerto Rico
  9. 3.1 10 km NNE of Carrizales, Puerto Rico
  10. 3.1 2 km NE of Bayamón, Puerto Rico
  11. 3.1 1 km SSE of Guaynabo, Puerto Rico
  12. 2.9 27 km NNW of San Juan, Puerto Rico
  13. 3.3 5 km NNE of Aguas Buenas, Puerto Rico
  14. 2.8 48 km N of Tierras Nuevas Poniente, Puerto Rico
  15. 2.8 2 km NW of Levittown, 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 2017-08-18 — it released about 560 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.