QuakeIndex

Earthquake · reviewed by a seismologist

M 2.3md

Earthquake near Tallaboa Alta, PR

No earthquake was likely felt in Tallaboa Alta in the 24 hours to 1:01 pm AST (17:01 UTC). The last one was M 2.1, 10 km (6 mi) WSW, at 4:39 pm AST on 9 November 2026, estimated intensity II (weak) in town. Every earthquake near Tallaboa Alta

This page: a magnitude 2.3 earthquake was recorded 6 km (4 mi) north-northeast of Tallaboa Alta, PR, at 1:22 am AST on 5 March 2026 (05:22 UTC), 20 km deep.

USGS: 6 km NNE of Tallaboa Alta, Puerto Rico

12 km (7 mi) NNW of Ponce, PR

1:22 am AST, Mar 5, 2026 · · 20 km deep · released about 77 lb of TNT

Every earthquake near Tallaboa Alta Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Peñuelas Municipio 10 kmPonce Municipio 13 kmAdjuntas Municipio 13 kmJayuya Municipio 15 kmGuayanilla Municipio 17 kmUtuado Municipio 19 kmYauco Municipio 20 kmVillalba Municipio 21 kmJuana Díaz Municipio 22 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
1:22 am AST on 5 March 2026 ()
Where
6 km (4 mi) north-northeast of Tallaboa Alta, PR · earthquakes near Tallaboa Alta
Magnitude
M 2.3 (md)
Depth
20 km below the surface
Felt
no reports yet
Nearest
Peñuelas Municipio, 10 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 251 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 Tallaboa Alta, 6 km away, the estimate is intensity II (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.

Earthquakes near other towns within 30 km: Peñuelas, Adjuntas, Santo Domingo, Ponce, Tallaboa, Coto Laurel.

How big was it?

This earthquake released about 77 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.3 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 200,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 140,000× the energy of this one
  3. Around the size people start to feel M 3.0 12× the energy of this one
  4. This earthquake M 2.3 about 77 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 1,600,000 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 18.0992, -66.6668. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Peñuelas Municipio, PR 10 km (6 mi) SW earthquakes near Peñuelas Municipio
Ponce Municipio, PR 13 km (8 mi) SSE earthquakes near Ponce Municipio
Adjuntas Municipio, PR 13 km (8 mi) NW earthquakes near Adjuntas Municipio
Jayuya Municipio, PR 15 km (9 mi) NE earthquakes near Jayuya Municipio
Guayanilla Municipio, PR 17 km (11 mi) SW earthquakes near Guayanilla Municipio
Utuado Municipio, PR 19 km (12 mi) NNW earthquakes near Utuado Municipio

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

Aftershocks so far

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

  1. 2.4 3 km SSW of Tallaboa, Puerto Rico
  2. 2.3 6 km WSW of Guánica, Puerto Rico
  3. 2.0 2 km SSW of Vázquez, Puerto Rico
  4. 2.0 3 km SW of Indios, Puerto Rico
  5. 1.7 1 km N of Guayanilla, Puerto Rico
  6. 1.9 2 km ESE of Palomas, Puerto Rico
  7. 2.2 4 km SE of Maria Antonia, Puerto Rico
  8. 2.1 2 km SSE of Yauco, Puerto Rico
  9. 2.1 1 km WSW of Guayanilla, Puerto Rico
  10. 1.9 5 km ENE of La Parguera, Puerto Rico
  11. 1.9 2 km NW of Guayanilla, Puerto Rico
  12. 2.0 2 km SW of Indios, Puerto Rico
  13. 2.2 2 km SSE of Las Marías, Puerto Rico
  14. 2.8 1 km SSW of Indios, Puerto Rico
  15. 2.3 3 km W of Fuig, 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.