QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

2 km ESE of Levittown, Puerto Rico

· 87 km deep · released about 510 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Cataño Municipio 1 kmToa Baja Municipio 4 kmSan Juan Municipio 10 kmBayamón Municipio 10 kmDorado Municipio 11 kmGuaynabo Municipio 12 kmToa Alta Municipio 12 kmVega Alta Municipio 19 kmNaranjito Municipio 20 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
87 km below the surface
Felt
no reports yet
Nearest
Cataño Municipio, 1 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2583 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 18.4428, -66.1596. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cataño Municipio, PR 1 km (1 mi) W of here earthquakes near Cataño Municipio
Toa Baja Municipio, PR 4 km (2 mi) ESE of here earthquakes near Toa Baja Municipio
San Juan Municipio, PR 10 km (6 mi) WNW of here earthquakes near San Juan Municipio
Bayamón Municipio, PR 10 km (6 mi) N of here earthquakes near Bayamón Municipio
Dorado Municipio, PR 11 km (7 mi) ESE of here earthquakes near Dorado Municipio
Guaynabo Municipio, PR 12 km (7 mi) NNW of here earthquakes near Guaynabo 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. 2.4 34 km N of San Juan, Puerto Rico
  2. 2.7 43 km N of Loíza, Puerto Rico
  3. 2.8 5 km W of Trujillo Alto, Puerto Rico
  4. 2.1 5 km N of Levittown, Puerto Rico
  5. 2.0 11 km N of Levittown, Puerto Rico
  6. 2.1 0 km NNW of Mariano Colón, Puerto Rico
  7. 2.4 27 km N of Tierras Nuevas Poniente, Puerto Rico
  8. 1.8 Puerto Rico region
  9. 2.0 2 km SE of Palmarejo, Puerto Rico
  10. 2.2 8 km N of Levittown, Puerto Rico
  11. 2.8 16 km NNE of Vieques, Puerto Rico
  12. 1.8 4 km NNE of Orocovis, Puerto Rico
  13. 3.0 4 km SSW of Bayamón, Puerto Rico
  14. 2.9 2 km NE of Guaynabo, Puerto Rico
  15. 1.6 6 km SSW of Jagual, 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.