QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

13 km N of Levittown, Puerto Rico

· 73 km deep · released about 550 lb of TNT

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10 km30 km60 km120 km N Toa Baja Municipio 13 kmDorado Municipio 14 kmCataño Municipio 14 kmSan Juan Municipio 20 kmVega Alta Municipio 22 kmToa Alta Municipio 24 kmBayamón Municipio 24 kmGuaynabo Municipio 26 kmVega Baja Municipio 26 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
73 km below the surface
Felt
no reports yet
Nearest
Toa Baja Municipio, 13 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1509 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 550 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 28,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 19,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.7× the energy of this one
  4. This earthquake M 2.8 about 550 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 18.5690, -66.1810. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Toa Baja Municipio, PR 13 km (8 mi) N of here earthquakes near Toa Baja Municipio
Dorado Municipio, PR 14 km (8 mi) NE of here earthquakes near Dorado Municipio
Cataño Municipio, PR 14 km (9 mi) NNW of here earthquakes near Cataño Municipio
San Juan Municipio, PR 20 km (13 mi) NW of here earthquakes near San Juan Municipio
Vega Alta Municipio, PR 22 km (14 mi) NE of here earthquakes near Vega Alta Municipio
Toa Alta Municipio, PR 24 km (15 mi) NNE of here earthquakes near Toa Alta Municipio

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

Aftershocks so far

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

  1. 3.1 12 km N of Brenas, Puerto Rico
  2. 3.1 10 km NW of San Juan, Puerto Rico
  3. 3.3 3 km SE of Trujillo Alto, Puerto Rico
  4. 2.7 Puerto Rico region
  5. 3.2 24 km N of San Juan, Puerto Rico
  6. 3.7 Puerto Rico region
  7. 3.2 5 km ESE of Pájaros, Puerto Rico
  8. 3.1 4 km SSW of Florida, Puerto Rico
  9. 3.2 31 km NNE of Dorado, Puerto Rico
  10. 2.9 Puerto Rico region
  11. 3.4 30 km NNE of Vieques, Puerto Rico
  12. 2.1 3 km E of Comerío, Puerto Rico
  13. 2.9 Puerto Rico region
  14. 3.3 15 km NNW of Brenas, Puerto Rico
  15. 2.8 1 km S 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 4.8 on 2017-08-18 — it released about 870 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.