QuakeIndex

Earthquake · reviewed by a seismologist

M 2.1md

Earthquake near Yauco, PR

No earthquake was likely felt in Yauco in the 24 hours to 3:33 pm AST (19:33 UTC). The last one was M 2.1, 6 km (4 mi) ESE, at 4:39 pm AST on 9 November 2026, estimated intensity II (weak) in town. Every earthquake near Yauco

This page: a magnitude 2.1 earthquake was recorded 40 km (25 mi) south-southwest of Yauco, PR, at 3:53 pm AST on 24 July 2023 (19:53 UTC), 39 km deep.

USGS: Puerto Rico region

53 km (33 mi) SW of Ponce, PR · 128 km (79 mi) SW of San Juan, PR

3:53 pm AST, Jul 24, 2023 · · 39 km deep · released about 44 lb of TNT

Every earthquake near Yauco Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Guánica Municipio 27 kmLajas Municipio 28 kmCabo Rojo Municipio 33 kmGuayanilla Municipio 40 kmSabana Grande Municipio 41 kmSan Germán Municipio 42 kmYauco Municipio 44 kmHormigueros Municipio 46 kmPeñuelas Municipio 47 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
3:53 pm AST on 24 July 2023 ()
Where
40 km (25 mi) south-southwest of Yauco, PR · earthquakes near Yauco
Magnitude
M 2.1 (md)
Depth
39 km below the surface
Felt
no reports yet
Nearest
Guánica Municipio, 27 km NNE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1206 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 Yauco, 40 km away, the estimate is intensity I (not felt). 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: La Parguera.

How big was it?

This earthquake released about 44 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 5.8 340,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 240,000× the energy of this one
  3. Around the size people start to feel M 3.0 22× the energy of this one
  4. This earthquake M 2.1 about 44 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 in our catalogue was M 6.4 on 2020-01-07 — about 2,700,000 times the energy of this one.

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 17.7290, -67.0412. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Guánica Municipio, PR 27 km (17 mi) NNE earthquakes near Guánica Municipio
Lajas Municipio, PR 28 km (17 mi) N earthquakes near Lajas Municipio
Cabo Rojo Municipio, PR 33 km (21 mi) NNW earthquakes near Cabo Rojo Municipio
Guayanilla Municipio, PR 40 km (25 mi) NE earthquakes near Guayanilla Municipio
Sabana Grande Municipio, PR 41 km (25 mi) NNE earthquakes near Sabana Grande Municipio
San Germán Municipio, PR 42 km (26 mi) N earthquakes near San Germán Municipio

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

Aftershocks so far

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

  1. 2.2 4 km SSW of Indios, Puerto Rico
  2. 1.6 2 km NNW of La Parguera, Puerto Rico
  3. 2.2 7 km WSW of La Parguera, Puerto Rico
  4. 2.0 7 km WSW of La Parguera, Puerto Rico
  5. 2.0 Puerto Rico region
  6. 2.5 3 km E of Lajas, Puerto Rico
  7. 2.2 9 km SE of Pole Ojea, Puerto Rico
  8. 2.8 3 km E of Maria Antonia, Puerto Rico
  9. 2.7 5 km WSW of La Parguera, Puerto Rico
  10. 2.4 7 km WSW of La Parguera, Puerto Rico
  11. 2.5 3 km SSE of Santo Domingo, Puerto Rico
  12. 3.2 6 km WSW of La Parguera, Puerto Rico
  13. 2.6 1 km E of Palomas, Puerto Rico
  14. 2.7 0 km SSW of Indios, Puerto Rico
  15. 2.8 0 km E of Palomas, 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.