QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

Earthquake near Maria Antonia, PR

Yes: an earthquake was likely felt in Maria Antonia in the last 24 hours. M 2.1, 5 km (3 mi) ENE of Maria Antonia, at 4:14 pm AST on 11 November 2026 (20:14 UTC); the estimated shaking in Maria Antonia was intensity II (weak). Every earthquake near Maria Antonia

This page: a magnitude 2.6 earthquake was recorded 6 km (4 mi) south-southeast of Maria Antonia, PR, at 11:28 pm AST on 16 December 2023 (03:28 UTC), 7.6 km deep.

USGS: 6 km SSE of Maria Antonia, Puerto Rico

27 km (17 mi) WSW of Ponce, PR

11:28 pm AST, Dec 16, 2023 · · 7.6 km deep · released about 250 lb of TNT

Every earthquake near Maria Antonia Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Guánica Municipio 7 kmGuayanilla Municipio 11 kmYauco Municipio 18 kmPeñuelas Municipio 18 kmLajas Municipio 20 kmSabana Grande Municipio 20 kmSan Germán Municipio 27 kmPonce Municipio 28 kmMaricao Municipio 29 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
11:28 pm AST on 16 December 2023 ()
Where
6 km (4 mi) south-southeast of Maria Antonia, PR · earthquakes near Maria Antonia
Magnitude
M 2.6 (md)
Depth
7.6 km below the surface
Felt
no reports yet
Nearest
Guánica Municipio, 7 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1061 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, people at rest would likely notice it out to about 22 km (14 mi) from the epicentre. In Maria Antonia, 6 km away, the estimate is intensity III (weak). 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.

Likely felt in: Yauco 12 km, intensity II · Guayanilla 13 km, intensity II · Magas Arriba 14 km, intensity II · Tallaboa 17 km, intensity II · Tallaboa Alta 22 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 250 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 61,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 43,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.8× the energy of this one
  4. This earthquake M 2.6 about 250 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 6.4 on 2020-01-07 — about 480,000 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 17.9268, -66.8632. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Guánica Municipio, PR 7 km (4 mi) WNW earthquakes near Guánica Municipio
Guayanilla Municipio, PR 11 km (7 mi) NE earthquakes near Guayanilla Municipio
Yauco Municipio, PR 18 km (11 mi) N earthquakes near Yauco Municipio
Peñuelas Municipio, PR 18 km (11 mi) NE earthquakes near Peñuelas Municipio
Lajas Municipio, PR 20 km (12 mi) WNW earthquakes near Lajas Municipio
Sabana Grande Municipio, PR 20 km (12 mi) NNW earthquakes near Sabana Grande Municipio

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

Aftershocks so far

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

  1. 2.3 7 km WSW of Guánica, Puerto Rico
  2. 2.1 7 km NNE of Yauco, Puerto Rico
  3. 2.1 10 km S of Guánica, Puerto Rico
  4. 2.5 3 km NNW of Guayanilla, Puerto Rico
  5. 2.9 2 km SE of Guánica, Puerto Rico
  6. 2.1 2 km W of Guayanilla, Puerto Rico
  7. 2.5 2 km S of Yauco, Puerto Rico
  8. 2.0 10 km SSW of Guánica, Puerto Rico
  9. 2.2 6 km SSE of Indios, Puerto Rico
  10. 2.4 2 km WSW of Indios, Puerto Rico
  11. 2.1 2 km SW of Guánica, Puerto Rico
  12. 2.2 0 km NE of Fuig, Puerto Rico
  13. 1.9 6 km ESE of La Parguera, Puerto Rico
  14. 3.0 0 km SSW of Añasco, Puerto Rico
  15. 2.9 6 km SSW of Indios, 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.