QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

Earthquake near Yauco, PR

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

This page: a magnitude 2.1 earthquake was recorded 4 km (3 mi) northeast of Yauco, PR, at 1:35 pm AST on 8 January 2021 (17:35 UTC), 8.0 km deep.

USGS: 4 km NE of Yauco, Puerto Rico

22 km (14 mi) WNW of Ponce, PR

1:35 pm AST, Jan 8, 2021 · · 8.0 km deep · released about 51 lb of TNT

Every earthquake near Yauco Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yauco Municipio 4 kmGuayanilla Municipio 7 kmPeñuelas Municipio 11 kmSabana Grande Municipio 13 kmAdjuntas Municipio 15 kmGuánica Municipio 17 kmMaricao Municipio 17 kmSan Germán Municipio 23 kmLares Municipio 24 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
1:35 pm AST on 8 January 2021 ()
Where
4 km (3 mi) northeast of Yauco, PR · earthquakes near Yauco
Magnitude
M 2.1 (md)
Depth
8.0 km below the surface
Felt
no reports yet
Nearest
Yauco Municipio, 4 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2054 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 16 km (10 mi) from the epicentre. In Yauco, 4 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: Yauco 4 km, intensity II · Guayanilla 6 km, intensity II · Magas Arriba 8 km, intensity II · Tallaboa Alta 13 km, intensity II · Tallaboa 14 km, intensity II · Adjuntas 15 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 51 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.1 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 300,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 210,000× the energy of this one
  3. Around the size people start to feel M 3.0 19× the energy of this one
  4. This earthquake M 2.1 about 51 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 2,400,000 times the energy of this one.

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

  1. 5.8 4 km E of Moca, Puerto Rico · 45 km NW 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 18.0643, -66.8250. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Yauco Municipio, PR 4 km (3 mi) NW earthquakes near Yauco Municipio
Guayanilla Municipio, PR 7 km (4 mi) SSE earthquakes near Guayanilla Municipio
Peñuelas Municipio, PR 11 km (7 mi) ESE earthquakes near Peñuelas Municipio
Sabana Grande Municipio, PR 13 km (8 mi) W earthquakes near Sabana Grande Municipio
Adjuntas Municipio, PR 15 km (9 mi) NNE earthquakes near Adjuntas Municipio
Guánica Municipio, PR 17 km (10 mi) SW earthquakes near Guánica Municipio

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

Aftershocks so far

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

  1. 1.9 3 km S of Guánica, Puerto Rico
  2. 1.6 2 km SW of Guánica, Puerto Rico
  3. 2.2 7 km SE of Maria Antonia, Puerto Rico
  4. 1.6 0 km WNW of Guánica, Puerto Rico
  5. 1.6 2 km S of Guánica, Puerto Rico
  6. 1.9 12 km S of Guánica, Puerto Rico
  7. 1.6 12 km NW of Puerto Real, Puerto Rico
  8. 1.6 3 km SE of Maria Antonia, Puerto Rico
  9. 1.7 2 km S of Guánica, Puerto Rico
  10. 2.0 6 km SSW of Indios, Puerto Rico
  11. 2.0 6 km SSE of Maria Antonia, Puerto Rico
  12. 2.2 1 km S of Sabana Grande, Puerto Rico
  13. 2.0 2 km NNW of Maria Antonia, Puerto Rico
  14. 1.6 3 km S of La Parguera, Puerto Rico
  15. 1.9 6 km SE of Maria Antonia, 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.