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 2.0 earthquake was recorded 42 km (26 mi) northeast of Culebra, PR, at 5:23 am AST on 8 October 2016 (09:23 UTC), 29 km deep.

USGS: Puerto Rico region

5:23 am AST, Oct 8, 2016 · 2016-10-08 09:23 UTC · 29 km deep · released about 30 lb of TNT

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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: 5:23 am AST on 8 October 2016 (2016-10-08 09:23 UTC)
Where: 42 km (26 mi) northeast of Culebra, PR · earthquakes near Culebra
Magnitude: M 2.0 (Md)
Depth: 29 km below the surface
Felt: no reports yet
Nearest: Culebra Municipio, 40 km SW
Status: Reviewed by a seismologist

USGS · last changed by USGS 3687 days ago · we first saw it 3687 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, 42 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 30 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

Mineral, Virginia 2011 M 5.8 500,000× the energy of this one
Magna, Utah 2020 M 5.7 350,000× the energy of this one
Around the size people start to feel M 3.0 32× the energy of this one
This earthquake M 2.0 about 30 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

Map loads when it scrolls into view

Epicentre 18.5706, -65.0227. Map © OpenStreetMap contributors.

Nearby places

Place	Distance	Direction from the epicentre
Culebra Municipio, PR	40 km (25 mi)	SW	earthquakes near Culebra Municipio
Fajardo Municipio, PR	63 km (39 mi)	WSW	earthquakes near Fajardo Municipio
Vieques Municipio, PR	66 km (41 mi)	SW	earthquakes near Vieques Municipio
Ceiba Municipio, PR	72 km (45 mi)	WSW	earthquakes near Ceiba Municipio
Luquillo Municipio, PR	76 km (47 mi)	WSW	earthquakes near Luquillo Municipio
Río Grande Municipio, PR	85 km (53 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

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

2.4 63 km N of Charlotte Amalie, U.S. Virgin Islands 00:46 UTC
1.6 24 km N of Cruz Bay, U.S. Virgin Islands 18:52 UTC
2.2 31 km NNE of Culebra, Puerto Rico 09:11 UTC
2.7 47 km N of Charlotte Amalie, U.S. Virgin Islands 00:28 UTC
2.3 73 km N of Charlotte Amalie, U.S. Virgin Islands 10:58 UTC
2.1 51 km N of Cruz Bay, U.S. Virgin Islands 00:40 UTC
2.7 43 km NNW of Charlotte Amalie, U.S. Virgin Islands 23:59 UTC
2.1 19 km NNW of Charlotte Amalie, U.S. Virgin Islands 10:51 UTC
2.6 52 km NNW of Charlotte Amalie, U.S. Virgin Islands 10:29 UTC
2.8 11 km NNE of Cruz Bay, U.S. Virgin Islands 05:07 UTC
2.4 71 km N of Charlotte Amalie, U.S. Virgin Islands 01:58 UTC
2.8 72 km N of Charlotte Amalie, U.S. Virgin Islands 01:55 UTC
2.7 67 km N of Charlotte Amalie, U.S. Virgin Islands 01:35 UTC
1.9 51 km N of Charlotte Amalie, U.S. Virgin Islands 22:37 UTC
3.1 62 km N of Cruz Bay, U.S. Virgin Islands 06:51 UTC

Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of 05:07 UTC. QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.

On USGS

The official USGS event page — the source of record for every value above
Did you feel it? Report it to USGS — reports go to USGS, not to us
ShakeMap for this event, when USGS has produced one

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