QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6Md

1 km N of Candelaria Arenas, Puerto Rico

· 21 km deep · released about 240 lb of TNT

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10 km30 km60 km120 km N Toa Baja Municipio 4 kmDorado Municipio 7 kmCataño Municipio 7 kmToa Alta Municipio 8 kmBayamón Municipio 10 kmVega Alta Municipio 13 kmGuaynabo Municipio 14 kmSan Juan Municipio 16 kmNaranjito 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
21 km below the surface
Felt
no reports yet
Nearest
Toa Baja Municipio, 4 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3464 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 240 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 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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 18.4286, -66.2163. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Toa Baja Municipio, PR 4 km (2 mi) SW of here earthquakes near Toa Baja Municipio
Dorado Municipio, PR 7 km (4 mi) SE of here earthquakes near Dorado Municipio
Cataño Municipio, PR 7 km (5 mi) WSW of here earthquakes near Cataño Municipio
Toa Alta Municipio, PR 8 km (5 mi) NNE of here earthquakes near Toa Alta Municipio
Bayamón Municipio, PR 10 km (6 mi) NNW of here earthquakes near Bayamón Municipio
Vega Alta Municipio, PR 13 km (8 mi) E of here earthquakes near Vega Alta Municipio

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

Aftershocks so far

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

  1. 3.1 1 km NW of Bayamón, Puerto Rico
  2. 2.3 1 km S of Río Lajas, Puerto Rico
  3. 2.6 21 km NNE of Dorado, Puerto Rico
  4. 3.1 5 km ESE of Cataño, Puerto Rico
  5. 2.9 3 km N of Trujillo Alto, Puerto Rico
  6. 2.7 20 km N of Brenas, Puerto Rico
  7. 2.8 33 km N of Tierras Nuevas Poniente, Puerto Rico
  8. 2.9 7 km NNW of Martorell, Puerto Rico
  9. 1.6 6 km WNW of Palomas, Puerto Rico
  10. 1.9 2 km NW of Aibonito, Puerto Rico
  11. 2.5 3 km E of La Plena, Puerto Rico
  12. 2.3 0 km N of Pastos, Puerto Rico
  13. 2.7 42 km N of Brenas, Puerto Rico
  14. 2.6 27 km NNW of Loíza, Puerto Rico
  15. 3.1 1 km SW of San Antonio, 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.