QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

3 km SSE of Guaynabo, Puerto Rico

· 114 km deep · released about 220 lb of TNT

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10 km30 km60 km120 km N Guaynabo Municipio 3 kmBayamón Municipio 8 kmAguas Buenas Municipio 8 kmTrujillo Alto Municipio 10 kmSan Juan Municipio 11 kmCaguas Municipio 14 kmGurabo Municipio 14 kmCataño Municipio 14 kmToa Alta Municipio 16 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 2.6 (md)
Depth
114 km below the surface
Felt
no reports yet
Nearest
Guaynabo Municipio, 3 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2968 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 220 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 70,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 50,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.4× the energy of this one
  4. This earthquake M 2.6 about 220 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 18.3241, -66.0995. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Guaynabo Municipio, PR 3 km (2 mi) SE of here earthquakes near Guaynabo Municipio
Bayamón Municipio, PR 8 km (5 mi) ESE of here earthquakes near Bayamón Municipio
Aguas Buenas Municipio, PR 8 km (5 mi) NNE of here earthquakes near Aguas Buenas Municipio
Trujillo Alto Municipio, PR 10 km (6 mi) W of here earthquakes near Trujillo Alto Municipio
San Juan Municipio, PR 11 km (7 mi) SSW of here earthquakes near San Juan Municipio
Caguas Municipio, PR 14 km (8 mi) NNW of here earthquakes near Caguas Municipio

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

Aftershocks so far

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

  1. 2.1 2 km SSW of Aguas Buenas, Puerto Rico
  2. 2.8 Puerto Rico region
  3. 1.7 7 km SE of Pájaros, Puerto Rico
  4. 2.6 17 km NNE of Vieques, Puerto Rico
  5. 2.3 6 km NW of Yaurel, Puerto Rico
  6. 3.1 4 km NNE of Bairoa, Puerto Rico
  7. 2.4 26 km N of San Juan, Puerto Rico
  8. 1.7 2 km SSE of Pájaros, Puerto Rico
  9. 1.6 4 km W of Central Aguirre, Puerto Rico
  10. 2.4 8 km NNE of Dorado, Puerto Rico
  11. 1.8 5 km SSW of Central Aguirre, Puerto Rico
  12. 2.4 4 km NNE of Guaynabo, Puerto Rico
  13. 1.9 1 km N of Las Ochenta, Puerto Rico
  14. 2.2 5 km ESE of G. L. Garcia, Puerto Rico
  15. 2.7 5 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.

On USGS

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