QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

111 km NNE of San Juan, Puerto Rico

· 54 km deep · released about 220 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Loíza Municipio 111 kmCataño Municipio 116 kmToa Baja Municipio 116 kmSan Juan Municipio 116 kmDorado Municipio 117 kmCarolina Municipio 117 kmRío Grande Municipio 118 kmFajardo Municipio 120 kmLuquillo Municipio 120 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
54 km below the surface
Felt
no reports yet
Nearest
Loíza Municipio, 111 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2735 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 19.4403, -65.8250. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Loíza Municipio, PR 111 km (69 mi) N of here earthquakes near Loíza Municipio
Cataño Municipio, PR 116 km (72 mi) NNE of here earthquakes near Cataño Municipio
Toa Baja Municipio, PR 116 km (72 mi) NNE of here earthquakes near Toa Baja Municipio
San Juan Municipio, PR 116 km (72 mi) NNE of here earthquakes near San Juan Municipio
Dorado Municipio, PR 117 km (73 mi) NNE of here earthquakes near Dorado Municipio
Carolina Municipio, PR 117 km (73 mi) N of here earthquakes near Carolina 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. 3.3 121 km NNE of Suárez, Puerto Rico
  2. 2.7 72 km NNE of San Juan, Puerto Rico
  3. 3.5 109 km NNE of Vieques, Puerto Rico
  4. 2.5 98 km N of San Juan, Puerto Rico
  5. 3.1 121 km N of San Juan, Puerto Rico
  6. 2.7 112 km N of Suárez, Puerto Rico
  7. 2.7 118 km N of Suárez, Puerto Rico
  8. 2.1 115 km NNE of San Juan, Puerto Rico
  9. 1.9 64 km NNE of San Juan, Puerto Rico
  10. 3.1 74 km N of San Juan, Puerto Rico
  11. 3.4 114 km NNE of Vieques, Puerto Rico
  12. 2.8 78 km N of San Juan, Puerto Rico
  13. 3.0 110 km N of San Juan, Puerto Rico
  14. 3.2 124 km NNE of Vieques, Puerto Rico
  15. 2.9 127 km NNE of Suárez, 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.