QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9md

Earthquake near Yauco, PR

No earthquake was likely felt in Yauco in the 24 hours to 10:13 am AST (14:13 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 1.9 earthquake was recorded 12 km (7 mi) north of Yauco, PR, at 9:06 am AST on 30 October 2019 (13:06 UTC), 20 km deep.

USGS: 11 km N of Yauco, Puerto Rico

29 km (18 mi) NW of Ponce, PR

9:06 am AST, Oct 30, 2019 · · 20 km deep · released about 20 lb of TNT

Every earthquake near Yauco Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Yauco Municipio 6 kmMaricao Municipio 10 kmAdjuntas Municipio 10 kmSabana Grande Municipio 12 kmLares Municipio 15 kmGuayanilla Municipio 16 kmLas Marías Municipio 17 kmPeñuelas Municipio 18 kmSan Germán Municipio 20 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
9:06 am AST on 30 October 2019 ()
Where
12 km (7 mi) north of Yauco, PR · earthquakes near Yauco
Magnitude
M 1.9 (md)
Depth
20 km below the surface
Felt
no reports yet
Nearest
Yauco Municipio, 6 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2569 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, 12 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.

Earthquakes near other towns within 30 km: Lluveras, Santo Domingo, Adjuntas, Sabana Grande, Maricao, Palomas.

How big was it?

This earthquake released about 20 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 760,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 540,000× the energy of this one
  3. Around the size people start to feel M 3.0 48× the energy of this one
  4. This earthquake M 1.9 about 20 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

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 · 37 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 18.1433, -66.8486. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Yauco Municipio, PR 6 km (4 mi) S earthquakes near Yauco Municipio
Maricao Municipio, PR 10 km (6 mi) WNW earthquakes near Maricao Municipio
Adjuntas Municipio, PR 10 km (7 mi) ENE earthquakes near Adjuntas Municipio
Sabana Grande Municipio, PR 12 km (8 mi) WSW earthquakes near Sabana Grande Municipio
Lares Municipio, PR 15 km (9 mi) N earthquakes near Lares Municipio
Guayanilla Municipio, PR 16 km (10 mi) SSE earthquakes near Guayanilla Municipio

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

Aftershocks so far

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

  1. 2.3 9 km SW of La Parguera, Puerto Rico
  2. 2.1 12 km SSE of Ponce, Puerto Rico
  3. 2.0 9 km SSW of La Parguera, Puerto Rico
  4. 2.2 5 km SW of La Parguera, Puerto Rico
  5. 2.3 9 km SSW of Potala Pastillo, Puerto Rico
  6. 1.9 4 km ENE of Hormigueros, Puerto Rico
  7. 1.8 13 km S of Ponce, Puerto Rico
  8. 1.8 1 km S of Guayanilla, Puerto Rico
  9. 2.8 7 km NNE of Hatillo, Puerto Rico
  10. 1.9 1 km ENE of Sabana Grande, Puerto Rico
  11. 1.8 4 km NW of Cabo Rojo, Puerto Rico
  12. 2.3 3 km WNW of Hormigueros, Puerto Rico
  13. 2.6 3 km SE of Jayuya, Puerto Rico
  14. 2.0 3 km SSE of Palmarejo, Puerto Rico
  15. 1.6 3 km NNE of Ponce, 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.