QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

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 1.8 earthquake was recorded in Yauco, PR, at 2:13 pm AST on 13 January 2021 (18:13 UTC), 8.0 km deep.

USGS: 1 km N of Yauco, Puerto Rico

24 km (15 mi) WNW of Ponce, PR

2:13 pm AST, Jan 13, 2021 · · 8.0 km deep · released about 15 lb of TNT

Every earthquake near Yauco Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yauco Municipio 5 kmGuayanilla Municipio 7 kmSabana Grande Municipio 11 kmPeñuelas Municipio 13 kmGuánica Municipio 13 kmMaricao Municipio 17 kmAdjuntas Municipio 18 kmSan Germán Municipio 21 kmLajas 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
2:13 pm AST on 13 January 2021 ()
Where
in Yauco, PR · earthquakes near Yauco
Magnitude
M 1.8 (md)
Depth
8.0 km below the surface
Felt
no reports yet
Nearest
Yauco Municipio, 5 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2017 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 11 km (7 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: Yauco in town, intensity II · Guayanilla 7 km, intensity II · Magas Arriba 9 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 15 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 710,000× the energy of this one
  3. Around the size people start to feel M 3.0 63× the energy of this one
  4. This earthquake M 1.8 about 15 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 7,900,000 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 · 46 km NNW 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 18.0458, -66.8495. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Yauco Municipio, PR 5 km (3 mi) NNW earthquakes near Yauco Municipio
Guayanilla Municipio, PR 7 km (4 mi) SE earthquakes near Guayanilla Municipio
Sabana Grande Municipio, PR 11 km (7 mi) WNW earthquakes near Sabana Grande Municipio
Peñuelas Municipio, PR 13 km (8 mi) E earthquakes near Peñuelas Municipio
Guánica Municipio, PR 13 km (8 mi) SW earthquakes near Guánica Municipio
Maricao Municipio, PR 17 km (11 mi) NNW earthquakes near Maricao 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. 1.6 4 km W of Fuig, Puerto Rico
  2. 1.5 4 km WSW of Fuig, Puerto Rico
  3. 2.1 5 km WSW of La Parguera, Puerto Rico
  4. 2.6 4 km SW of Fuig, Puerto Rico
  5. 1.6 4 km SE of La Parguera, Puerto Rico
  6. 1.6 6 km E of La Parguera, Puerto Rico
  7. 2.6 3 km SSW of Indios, Puerto Rico
  8. 1.7 1 km SSE of Magas Arriba, Puerto Rico
  9. 2.0 1 km SE of Palomas, Puerto Rico
  10. 1.7 5 km SE of La Parguera, Puerto Rico
  11. 1.7 6 km SE of Maria Antonia, Puerto Rico
  12. 2.3 3 km SSW of Guánica, Puerto Rico
  13. 2.5 7 km ESE of La Parguera, Puerto Rico
  14. 1.6 7 km WSW of Fuig, Puerto Rico
  15. 1.9 6 km SSW of Guánica, 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.