QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

Earthquake near Culebra, PR

Yes: an earthquake was likely felt in Culebra in the last 24 hours. M 2.9, 25 km (15 mi) ENE of Culebra, at 6:51 am AST on 11 November 2026 (10:51 UTC); the estimated shaking in Culebra was intensity II (weak). Every earthquake near Culebra

This page: a magnitude 1.9 earthquake was recorded 34 km (21 mi) northeast of Culebra, PR, at 8:05 am AST on 15 June 2017 (12:05 UTC), 36 km deep.

USGS: Puerto Rico region

8:05 am AST, Jun 15, 2017 · · 36 km deep · released about 19 lb of TNT

Every earthquake near Culebra Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Culebra Municipio 33 kmFajardo Municipio 55 kmVieques Municipio 58 kmCeiba Municipio 64 kmLuquillo Municipio 68 kmRío Grande Municipio 76 kmNaguabo Municipio 77 kmHumacao Municipio 86 kmCanóvanas Municipio 87 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
8:05 am AST on 15 June 2017 ()
Where
34 km (21 mi) northeast of Culebra, PR · earthquakes near Culebra
Magnitude
M 1.9 (md)
Depth
36 km below the surface
Felt
no reports yet
Nearest
Culebra Municipio, 33 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3436 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. In Culebra, 34 km away, the estimate is intensity I (not felt). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

How big was it?

This earthquake released about 19 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 810,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 580,000× the energy of this one
  3. Around the size people start to feel M 3.0 51× the energy of this one
  4. This earthquake M 1.9 about 19 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 18.5385, -65.0943. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Culebra Municipio, PR 33 km (20 mi) SW earthquakes near Culebra Municipio
Fajardo Municipio, PR 55 km (34 mi) WSW earthquakes near Fajardo Municipio
Vieques Municipio, PR 58 km (36 mi) SW earthquakes near Vieques Municipio
Ceiba Municipio, PR 64 km (40 mi) WSW earthquakes near Ceiba Municipio
Luquillo Municipio, PR 68 km (42 mi) WSW earthquakes near Luquillo Municipio
Río Grande Municipio, PR 76 km (47 mi) WSW earthquakes near Río Grande Municipio

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

Aftershocks so far

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

  1. 3.0 38 km N of Charlotte Amalie, U.S. Virgin Islands
  2. 1.9 30 km NNW of Charlotte Amalie, U.S. Virgin Islands
  3. 2.0 30 km N of Charlotte Amalie, U.S. Virgin Islands
  4. 2.0 20 km NE of Cruz Bay, U.S. Virgin Islands
  5. 2.0 35 km NNE of Luquillo, Puerto Rico
  6. 2.2 19 km NE of Cruz Bay, U.S. Virgin Islands
  7. 1.7 23 km S of Charlotte Amalie, U.S. Virgin Islands
  8. 1.8 18 km NE of Cruz Bay, U.S. Virgin Islands
  9. 1.8 20 km NNE of Cruz Bay, U.S. Virgin Islands
  10. 2.1 18 km NNE of Cruz Bay, U.S. Virgin Islands
  11. 2.4 18 km NE of Cruz Bay, U.S. Virgin Islands
  12. 2.3 50 km N of Charlotte Amalie, U.S. Virgin Islands
  13. 1.9 29 km N of Charlotte Amalie, U.S. Virgin Islands
  14. 2.8 51 km N of Cruz Bay, U.S. Virgin Islands
  15. 1.7 29 km NNE 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.

On USGS

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