QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

Earthquake near Ponce, PR

No earthquake was likely felt in Ponce in the 24 hours to 5:57 pm AST (21:57 UTC). The last one was M 3.0, 26 km (16 mi) WSW, at 3:45 am AST on 8 November 2026, estimated intensity II (weak) in town. Every earthquake near Ponce

This page: a magnitude 2.6 earthquake was recorded 24 km (15 mi) south-southeast of Ponce, PR, at 3:29 am AST on 26 November 2018 (07:29 UTC), 4.0 km deep.

USGS: Puerto Rico region

23 km (14 mi) SSE of Ponce, PR

3:29 am AST, Nov 26, 2018 · · 4.0 km deep · released about 210 lb of TNT

Every earthquake near Ponce Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Juana Díaz Municipio 22 kmSanta Isabel Municipio 23 kmPonce Municipio 23 kmPeñuelas Municipio 32 kmSalinas Municipio 34 kmGuayanilla Municipio 35 kmVillalba Municipio 36 kmCoamo Municipio 38 kmGuánica Municipio 44 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
3:29 am AST on 26 November 2018 ()
Where
24 km (15 mi) south-southeast of Ponce, PR · earthquakes near Ponce
Magnitude
M 2.6 (md)
Depth
4.0 km below the surface
Felt
no reports yet
Nearest
Juana Díaz Municipio, 22 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2907 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 23 km (14 mi) from the epicentre. In Ponce, 24 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.

Likely felt in: Santa Isabel 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 210 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 72,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 51,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.6× the energy of this one
  4. This earthquake M 2.6 about 210 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

Epicentre 17.8086, -66.5371. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Juana Díaz Municipio, PR 22 km (13 mi) NNE earthquakes near Juana Díaz Municipio
Santa Isabel Municipio, PR 23 km (14 mi) NE earthquakes near Santa Isabel Municipio
Ponce Municipio, PR 23 km (14 mi) NNW earthquakes near Ponce Municipio
Peñuelas Municipio, PR 32 km (20 mi) NW earthquakes near Peñuelas Municipio
Salinas Municipio, PR 34 km (21 mi) ENE earthquakes near Salinas Municipio
Guayanilla Municipio, PR 35 km (22 mi) NW earthquakes near Guayanilla Municipio

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

Aftershocks so far

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

  1. 2.1 8 km S of Tallaboa, Puerto Rico
  2. 1.5 4 km SW of Tallaboa, Puerto Rico
  3. 1.9 9 km S of Tallaboa, Puerto Rico
  4. 1.5 8 km S of Tallaboa, Puerto Rico
  5. 2.2 9 km S of Tallaboa, Puerto Rico
  6. 1.7 6 km S of Tallaboa, Puerto Rico
  7. 2.4 8 km S of Tallaboa, Puerto Rico
  8. 2.4 11 km S of Tallaboa, Puerto Rico
  9. 1.9 2 km WSW of Tallaboa, Puerto Rico
  10. 2.0 9 km S of Tallaboa, Puerto Rico
  11. 2.2 8 km S of Tallaboa, Puerto Rico
  12. 1.8 7 km S of Tallaboa, Puerto Rico
  13. 2.2 7 km S of Tallaboa, Puerto Rico
  14. 1.7 7 km S of Tallaboa, Puerto Rico
  15. 1.7 9 km S of Tallaboa, 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.