QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

19 km NNW of Culebra, Puerto Rico

· 5.0 km deep · released about 280 lb of TNT

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10 km30 km60 km120 km N Culebra Municipio 17 kmFajardo Municipio 27 kmCeiba Municipio 38 kmVieques Municipio 40 kmLuquillo Municipio 40 kmRío Grande Municipio 49 kmNaguabo Municipio 50 kmCanóvanas Municipio 59 kmHumacao Municipio 60 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
5.0 km below the surface
Felt
no reports yet
Nearest
Culebra Municipio, 17 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1800 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 280 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 53,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 38,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.3× the energy of this one
  4. This earthquake M 2.6 about 280 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 18.4741, -65.3480. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Culebra Municipio, PR 17 km (11 mi) NNW of here earthquakes near Culebra Municipio
Fajardo Municipio, PR 27 km (17 mi) ENE of here earthquakes near Fajardo Municipio
Ceiba Municipio, PR 38 km (24 mi) NE of here earthquakes near Ceiba Municipio
Vieques Municipio, PR 40 km (25 mi) NNE of here earthquakes near Vieques Municipio
Luquillo Municipio, PR 40 km (25 mi) ENE of here earthquakes near Luquillo Municipio
Río Grande Municipio, PR 49 km (30 mi) ENE of here earthquakes near Río Grande 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. 3.4 50 km NNW of Charlotte Amalie, U.S. Virgin Islands
  2. 3.5 25 km NNE of Luquillo, Puerto Rico
  3. 3.4 67 km N of Culebra, Puerto Rico
  4. 3.2 43 km NNE of Vieques, Puerto Rico
  5. 3.0 38 km NNE of Culebra, Puerto Rico
  6. 3.4 63 km NNE of Luquillo, Puerto Rico
  7. 2.7 8 km SE of Esperanza, Puerto Rico
  8. 2.1 7 km SE of Esperanza, Puerto Rico
  9. 3.5 30 km NNW of Charlotte Amalie, U.S. Virgin Islands
  10. 4.0 66 km N of Culebra, Puerto Rico
  11. 3.4 28 km NNE of Vieques, Puerto Rico
  12. 3.5 1 km SSW of Culebra, Puerto Rico
  13. 3.7 25 km NNE of Culebra, Puerto Rico
  14. 3.2 44 km NNW of Charlotte Amalie, U.S. Virgin Islands
  15. 3.6 19 km WSW of Charlotte Amalie, U.S. Virgin Islands

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 4.2 on 2019-07-28 — 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.