QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2Md

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 2.2 earthquake was recorded 20 km (12 mi) southeast of Culebra, PR, at 10:03 am AST on 17 April 2017 (14:03 UTC), 110 km deep.

USGS: 19 km SE of Culebra, Puerto Rico

96 km (60 mi) ESE of San Juan, PR

10:03 am AST, Apr 17, 2017 · · 110 km deep · released about 60 lb of TNT

Every earthquake near Culebra Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Culebra Municipio 22 kmVieques Municipio 26 kmCeiba Municipio 47 kmFajardo Municipio 49 kmNaguabo Municipio 58 kmLuquillo Municipio 60 kmHumacao Municipio 63 kmRío Grande Municipio 69 kmYabucoa Municipio 72 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
10:03 am AST on 17 April 2017 ()
Where
20 km (12 mi) southeast of Culebra, PR · earthquakes near Culebra
Magnitude
M 2.2 (Md)
Depth
110 km below the surface
Felt
no reports yet
Nearest
Culebra Municipio, 22 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3495 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, 20 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.

Earthquakes near other towns within 30 km: Isabel Segunda.

How big was it?

This earthquake released about 60 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 250,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 180,000× the energy of this one
  3. Around the size people start to feel M 3.0 16× the energy of this one
  4. This earthquake M 2.2 about 60 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.0 29 km S of Cruz Bay, U.S. Virgin Islands · 47 km ESE of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 18.1616, -65.1893. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Culebra Municipio, PR 22 km (14 mi) NW earthquakes near Culebra Municipio
Vieques Municipio, PR 26 km (16 mi) W earthquakes near Vieques Municipio
Ceiba Municipio, PR 47 km (29 mi) WNW earthquakes near Ceiba Municipio
Fajardo Municipio, PR 49 km (30 mi) WNW earthquakes near Fajardo Municipio
Naguabo Municipio, PR 58 km (36 mi) W earthquakes near Naguabo Municipio
Luquillo Municipio, PR 60 km (37 mi) WNW earthquakes near Luquillo Municipio

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

Aftershocks so far

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

  1. 2.5 13 km N of Isabel Segunda, Puerto Rico
  2. 1.9 13 km SSW of Charlotte Amalie, U.S. Virgin Islands
  3. 1.8 22 km NNW of Charlotte Amalie, U.S. Virgin Islands
  4. 1.9 10 km ESE of Punta Santiago, Puerto Rico
  5. 1.8 32 km S of Charlotte Amalie, U.S. Virgin Islands
  6. 2.6 36 km S of Charlotte Amalie, U.S. Virgin Islands
  7. 1.9 23 km SSW of Charlotte Amalie, U.S. Virgin Islands
  8. 2.3 10 km NNW of Cruz Bay, U.S. Virgin Islands
  9. 2.3 34 km NNE of Culebra, Puerto Rico
  10. 1.9 19 km SW of Esperanza, Puerto Rico
  11. 2.1 11 km SSE of Esperanza, Puerto Rico
  12. 1.8 25 km NNW of Charlotte Amalie, U.S. Virgin Islands
  13. 2.1 14 km SE of Esperanza, Puerto Rico
  14. 2.5 29 km NNW of Charlotte Amalie, U.S. Virgin Islands
  15. 2.2 23 km SW 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.