QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

15 km NNE of Suárez, Puerto Rico

· 39 km deep · released about 450 lb of TNT

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10 km30 km60 km120 km N Loíza Municipio 18 kmRío Grande Municipio 21 kmCarolina Municipio 24 kmLuquillo Municipio 25 kmCanóvanas Municipio 27 kmSan Juan Municipio 30 kmFajardo Municipio 32 kmTrujillo Alto Municipio 32 kmGurabo Municipio 37 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
39 km below the surface
Felt
no reports yet
Nearest
Loíza Municipio, 18 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3074 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 450 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 34,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 24,000× the energy of this one
  3. Around the size people start to feel M 3.0 2.1× the energy of this one
  4. This earthquake M 2.8 about 450 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 18.5663, -65.8230. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Loíza Municipio, PR 18 km (11 mi) NE of here earthquakes near Loíza Municipio
Río Grande Municipio, PR 21 km (13 mi) N of here earthquakes near Río Grande Municipio
Carolina Municipio, PR 24 km (15 mi) NE of here earthquakes near Carolina Municipio
Luquillo Municipio, PR 25 km (16 mi) NNW of here earthquakes near Luquillo Municipio
Canóvanas Municipio, PR 27 km (17 mi) NNE of here earthquakes near Canóvanas Municipio
San Juan Municipio, PR 30 km (19 mi) ENE of here earthquakes near San Juan Municipio

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

Aftershocks so far

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

  1. 2.7 24 km NNE of Vieques, Puerto Rico
  2. 2.6 3 km SSE of Guaynabo, Puerto Rico
  3. 2.6 41 km NNE of Luquillo, Puerto Rico
  4. 2.8 50 km N of San Juan, Puerto Rico
  5. 2.0 1 km NE of Sabana Seca, Puerto Rico
  6. 2.9 5 km SE of Cataño, Puerto Rico
  7. 2.1 7 km E of Naranjito, Puerto Rico
  8. 2.3 2 km SW of Bajandas, Puerto Rico
  9. 2.7 2 km E of La Fermina, Puerto Rico
  10. 1.8 4 km S of Caguas, Puerto Rico
  11. 2.3 3 km ENE of Bayamón, Puerto Rico
  12. 2.9 8 km NNW of Dorado, Puerto Rico
  13. 2.8 31 km N of San Juan, Puerto Rico
  14. 1.7 1 km SE of Bayamón, Puerto Rico
  15. 2.8 4 km SE of Cataño, 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.