QuakeIndex

Earthquake · reviewed by a seismologist

M 2.5md

Earthquake near Jauca, PR

No earthquake was likely felt in Jauca in the 24 hours to 7:16 pm AST (23:16 UTC). The last one was M 2.2, 7 km (4 mi) NNE, at 5:05 pm AST on 8 November 2026, estimated intensity II (weak) in town. Every earthquake near Jauca

This page: a magnitude 2.5 earthquake was recorded in Jauca, PR, at 12:31 am AST on 23 February 2021 (04:31 UTC), 7.0 km deep.

USGS: 1 km NW of Jauca, Puerto Rico

58 km (36 mi) SW of San Juan, PR · 26 km (16 mi) E of Ponce, PR

12:31 am AST, Feb 23, 2021 · · 7.0 km deep · released about 180 lb of TNT

Every earthquake near Jauca Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Santa Isabel Municipio 3 kmSalinas Municipio 12 kmJuana Díaz Municipio 12 kmCoamo Municipio 14 kmVillalba Municipio 20 kmAibonito Municipio 21 kmPonce Municipio 25 kmGuayama Municipio 25 kmBarranquitas Municipio 26 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
12:31 am AST on 23 February 2021 ()
Where
in Jauca, PR · earthquakes near Jauca
Magnitude
M 2.5 (md)
Depth
7.0 km below the surface
Felt
no reports yet
Nearest
Santa Isabel Municipio, 3 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2088 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 21 km (13 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.

Likely felt in: Santa Isabel 3 km, intensity III · Coamo 11 km, intensity II · Río Cañas Abajo 12 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 180 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 86,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 61,000× the energy of this one
  3. Around the size people start to feel M 3.0 5.4× the energy of this one
  4. This earthquake M 2.5 about 180 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 680,000 times the energy of this one.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.1 3 km W of Aguas Buenas, Puerto Rico · 40 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 17.9783, -66.3748. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Santa Isabel Municipio, PR 3 km (2 mi) SSW earthquakes near Santa Isabel Municipio
Salinas Municipio, PR 12 km (7 mi) E earthquakes near Salinas Municipio
Juana Díaz Municipio, PR 12 km (8 mi) W earthquakes near Juana Díaz Municipio
Coamo Municipio, PR 14 km (9 mi) N earthquakes near Coamo Municipio
Villalba Municipio, PR 20 km (12 mi) NNW earthquakes near Villalba Municipio
Aibonito Municipio, PR 21 km (13 mi) NE earthquakes near Aibonito Municipio

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

Aftershocks so far

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

  1. 2.5 10 km S of Tallaboa, Puerto Rico
  2. 2.3 8 km SE of Maria Antonia, Puerto Rico
  3. 2.5 9 km S of Tallaboa, Puerto Rico
  4. 3.0 8 km S of Tallaboa, Puerto Rico
  5. 2.9 Puerto Rico region
  6. 3.1 8 km S of Tallaboa, Puerto Rico
  7. 3.4 0 km NE of Mucarabones, Puerto Rico
  8. 2.8 3 km SE of Indios, Puerto Rico
  9. 2.2 6 km S of Indios, Puerto Rico
  10. 2.7 7 km SE of Maria Antonia, Puerto Rico
  11. 2.5 6 km SE of Indios, Puerto Rico
  12. 3.0 1 km ENE of Potala Pastillo, Puerto Rico
  13. 2.7 1 km ESE of Magas Arriba, Puerto Rico
  14. 2.8 8 km SSE of Indios, Puerto Rico
  15. 2.3 8 km S of Ciales, 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.