QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

0 km NE of La Luisa, Puerto Rico

· 88 km deep · released about 510 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Manatí Municipio 2 kmBarceloneta Municipio 6 kmFlorida Municipio 11 kmVega Baja Municipio 12 kmCiales Municipio 17 kmMorovis Municipio 18 kmArecibo Municipio 18 kmVega Alta Municipio 18 kmCorozal 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 2.8 (md)
Depth
88 km below the surface
Felt
no reports yet
Nearest
Manatí Municipio, 2 km ESE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2763 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 510 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 30,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 21,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.9× the energy of this one
  4. This earthquake M 2.8 about 510 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 18.4528, -66.5071. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Manatí Municipio, PR 2 km (1 mi) WNW of here earthquakes near Manatí Municipio
Barceloneta Municipio, PR 6 km (4 mi) ESE of here earthquakes near Barceloneta Municipio
Florida Municipio, PR 11 km (7 mi) NNE of here earthquakes near Florida Municipio
Vega Baja Municipio, PR 12 km (7 mi) W of here earthquakes near Vega Baja Municipio
Ciales Municipio, PR 17 km (11 mi) N of here earthquakes near Ciales Municipio
Morovis Municipio, PR 18 km (11 mi) NNW of here earthquakes near Morovis Municipio

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

Aftershocks so far

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

  1. 1.7 5 km ENE of Adjuntas, Puerto Rico
  2. 2.6 10 km N of Carrizales, Puerto Rico
  3. 2.9 8 km NNE of Animas, Puerto Rico
  4. 2.5 12 km E of Maricao, Puerto Rico
  5. 2.4 24 km N of Dorado, Puerto Rico
  6. 2.1 7 km NNE of Hatillo, Puerto Rico
  7. 2.2 1 km NW of Sumidero, Puerto Rico
  8. 2.0 6 km NW of Adjuntas, Puerto Rico
  9. 2.0 18 km N of Garrochales, Puerto Rico
  10. 2.7 2 km SW of H. Rivera Colon, Puerto Rico
  11. 1.5 7 km ESE of Adjuntas, Puerto Rico
  12. 1.6 7 km SSW of Estancias de Florida, Puerto Rico
  13. 2.6 3 km N of Cidra, Puerto Rico
  14. 2.7 5 km S of Jayuya, Puerto Rico
  15. 2.5 6 km ESE of San Juan, 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 230 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.