QuakeIndex

Earthquake · reviewed by a seismologist

M 2.4md

30 km SSW of Charlotte Amalie, U.S. Virgin Islands

Yes. A magnitude 2.4 earthquake was recorded 30 km SSW of Charlotte Amalie, U.S. Virgin Islands, at 2:06 pm AST on 23 March 2026 (18:06 UTC), 14 km deep.

· 14 km deep · released about 120 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Culebra Municipio 39 kmVieques Municipio 42 kmCeiba Municipio 65 kmFajardo Municipio 67 kmNaguabo Municipio 75 kmLuquillo Municipio 78 kmHumacao Municipio 79 kmRío Grande Municipio 87 kmYabucoa 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
Magnitude
M 2.4 (md)
Depth
14 km below the surface
Felt
no reports yet
Nearest
Culebra Municipio, 39 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 233 days ago

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

At this magnitude and depth, people at rest would likely notice it out to about 16 km (10 mi) from the epicentre. 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 120 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.4 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 130,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 92,000× the energy of this one
  3. Around the size people start to feel M 3.0 8.2× the energy of this one
  4. This earthquake M 2.4 about 120 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 4.8 on 2021-10-08 — about 4,100 times the energy of this one.

Before 2016, the USGS record lists 2 earthquakes of M5 or more within 50 km:

  1. 6.1 22 km NNE of Saint Croix, U.S. Virgin Islands · 47 km ESE of this epicentre
  2. 5.0 29 km S of Cruz Bay, U.S. Virgin Islands · 30 km E 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 18.0828, -65.0365. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Culebra Municipio, PR 39 km (25 mi) NW earthquakes near Culebra Municipio
Vieques Municipio, PR 42 km (26 mi) W earthquakes near Vieques Municipio
Ceiba Municipio, PR 65 km (40 mi) WNW earthquakes near Ceiba Municipio
Fajardo Municipio, PR 67 km (42 mi) WNW earthquakes near Fajardo Municipio
Naguabo Municipio, PR 75 km (47 mi) W earthquakes near Naguabo Municipio
Luquillo Municipio, PR 78 km (48 mi) WNW earthquakes near Luquillo Municipio

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

Aftershocks so far

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

  1. 2.9 20 km WNW of Charlotte Amalie, U.S. Virgin Islands
  2. 2.9 22 km SE of Esperanza, Puerto Rico
  3. 2.6 23 km NNW of Saint Croix, U.S. Virgin Islands
  4. 2.5 10 km ESE of Esperanza, Puerto Rico
  5. 2.4 16 km SE of Esperanza, Puerto Rico
  6. 4.1 21 km SE of Esperanza, Puerto Rico
  7. 3.3 24 km ESE of Isabel Segunda, Puerto Rico
  8. 3.2 40 km SE of Esperanza, Puerto Rico
  9. 2.9 8 km WNW of Culebra, Puerto Rico
  10. 3.1 16 km SE of Esperanza, Puerto Rico
  11. 3.4 9 km SE of Cruz Bay, U.S. Virgin Islands
  12. 3.0 28 km SSW of Charlotte Amalie, U.S. Virgin Islands
  13. 2.9 9 km NE of Charlotte Amalie, U.S. Virgin Islands
  14. 3.1 14 km SSE of Esperanza, Puerto Rico
  15. 2.9 17 km S of Esperanza, 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.