QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

Earthquake near Adjuntas, PR

No earthquake was likely felt in Adjuntas in the 24 hours to 10:03 pm AST (02:03 UTC). The last one was M 3.0, 31 km (19 mi) SSW, at 3:45 am AST on 8 November 2026, estimated intensity II (weak) in town. Every earthquake near Adjuntas

This page: a magnitude 2.0 earthquake was recorded 7 km (4 mi) east-northeast of Adjuntas, PR, at 7:55 am AST on 1 May 2026 (11:55 UTC), 21 km deep.

USGS: 6 km ENE of Adjuntas, Puerto Rico

21 km (13 mi) NNW of Ponce, PR

7:55 am AST, May 1, 2026 · · 21 km deep · released about 27 lb of TNT

Every earthquake near Adjuntas Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Jayuya Municipio 9 kmAdjuntas Municipio 10 kmUtuado Municipio 11 kmPeñuelas Municipio 19 kmCiales Municipio 20 kmPonce Municipio 21 kmVillalba Municipio 21 kmYauco Municipio 23 kmFlorida Municipio 23 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
7:55 am AST on 1 May 2026 ()
Where
7 km (4 mi) east-northeast of Adjuntas, PR · earthquakes near Adjuntas
Magnitude
M 2.0 (md)
Depth
21 km below the surface
Felt
no reports yet
Nearest
Jayuya Municipio, 9 km ENE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 195 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 Adjuntas, 7 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: Jayuya, Utuado, Cayuco, Tallaboa Alta, Peñuelas, Santo Domingo.

How big was it?

This earthquake released about 27 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.

  1. Mineral, Virginia 2011 M 5.8 560,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 390,000× the energy of this one
  3. Around the size people start to feel M 3.0 35× the energy of this one
  4. This earthquake M 2.0 about 27 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 4,400,000 times the energy of this one.

Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:

  1. 5.8 12 km N of Garrochales, Puerto Rico · 44 km NNE of this epicentre
  2. 5.8 4 km E of Moca, Puerto Rico · 49 km WNW of this epicentre
  3. 5.0 3 km N of Brenas, Puerto Rico · 49 km NE 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 18.1830, -66.6640. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Jayuya Municipio, PR 9 km (5 mi) ENE earthquakes near Jayuya Municipio
Adjuntas Municipio, PR 10 km (6 mi) W earthquakes near Adjuntas Municipio
Utuado Municipio, PR 11 km (7 mi) NNW earthquakes near Utuado Municipio
Peñuelas Municipio, PR 19 km (12 mi) SSW earthquakes near Peñuelas Municipio
Ciales Municipio, PR 20 km (12 mi) NE earthquakes near Ciales Municipio
Ponce Municipio, PR 21 km (13 mi) SSE earthquakes near Ponce Municipio

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

Aftershocks so far

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

  1. 2.4 2 km W of Indios, Puerto Rico
  2. 2.9 2 km ENE of Magas Arriba, Puerto Rico
  3. 2.8 13 km N of Hatillo, Puerto Rico
  4. 2.2 5 km SE of Maria Antonia, Puerto Rico
  5. 2.4 4 km NNE of Ponce, Puerto Rico
  6. 2.1 3 km SSW of Guánica, Puerto Rico
  7. 2.1 7 km WSW of Naranjito, Puerto Rico
  8. 2.6 1 km ESE of Indios, Puerto Rico
  9. 3.2 1 km ENE of Indios, Puerto Rico
  10. 2.9 1 km ENE of Sabana Grande, Puerto Rico
  11. 2.3 8 km SSE of Maria Antonia, Puerto Rico
  12. 2.3 2 km NNW of Tallaboa, Puerto Rico
  13. 2.3 2 km SSW of Peñuelas, Puerto Rico
  14. 2.3 7 km ESE of La Parguera, Puerto Rico
  15. 2.5 7 km WSW 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.