QuakeIndex

Earthquake · reviewed by a seismologist

M 3.0md

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 3.0 earthquake was recorded 23 km (14 mi) north of Culebra, PR, at 11:16 pm AST on 13 January 2019 (03:16 UTC), 113 km deep.

USGS: 23 km N of Culebra, Puerto Rico

78 km (48 mi) E of San Juan, PR

11:16 pm AST, Jan 13, 2019 · · 113 km deep · released about 1,000 lb of TNT

Every earthquake near Culebra Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Culebra Municipio 20 kmFajardo Municipio 30 kmCeiba Municipio 41 kmLuquillo Municipio 42 kmVieques Municipio 44 kmRío Grande Municipio 51 kmNaguabo Municipio 54 kmCanóvanas Municipio 61 kmHumacao Municipio 63 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
11:16 pm AST on 13 January 2019 ()
Where
23 km (14 mi) north of Culebra, PR · earthquakes near Culebra
Magnitude
M 3.0 (md)
Depth
113 km below the surface
Felt
no reports yet
Nearest
Culebra Municipio, 20 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2780 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. In Culebra, 23 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 1,000 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.0 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 330,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 15,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 10,000× the energy of this one
  4. This earthquake M 3.0 about 1,000 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

The largest earthquake within 50 km since 2016 was M 4.2 on 2018-01-07 — about 59 times the energy of this one.

Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.

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 18.5086, -65.3371. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Culebra Municipio, PR 20 km (13 mi) S earthquakes near Culebra Municipio
Fajardo Municipio, PR 30 km (19 mi) WSW earthquakes near Fajardo Municipio
Ceiba Municipio, PR 41 km (26 mi) SW earthquakes near Ceiba Municipio
Luquillo Municipio, PR 42 km (26 mi) WSW earthquakes near Luquillo Municipio
Vieques Municipio, PR 44 km (27 mi) SSW earthquakes near Vieques Municipio
Río Grande Municipio, PR 51 km (32 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

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

  1. 2.8 29 km NE of Luquillo, Puerto Rico
  2. 3.1 8 km W of Charlotte Amalie, U.S. Virgin Islands
  3. 3.3 56 km NNW of Charlotte Amalie, U.S. Virgin Islands
  4. 2.0 42 km NNE of Luquillo, Puerto Rico
  5. 1.7 3 km ENE of Vieques, Puerto Rico
  6. 3.0 56 km NNE of Luquillo, Puerto Rico
  7. 2.7 52 km NNE of Luquillo, Puerto Rico
  8. 2.8 42 km NNE of Luquillo, Puerto Rico
  9. 2.9 39 km NNE of Luquillo, Puerto Rico
  10. 2.1 12 km NE of Vieques, Puerto Rico
  11. 2.7 14 km NE of Luquillo, Puerto Rico
  12. 2.0 14 km NE of Luquillo, Puerto Rico
  13. 3.0 61 km N of Culebra, Puerto Rico
  14. 2.9 62 km N of Culebra, Puerto Rico
  15. 3.1 12 km E of Culebra, 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.