QuakeIndex

Earthquake · reviewed by a seismologist

M 1.8md

Earthquake near Yauco, PR

No earthquake was likely felt in Yauco in the 24 hours to 1:36 pm AST (17:36 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 1.8 earthquake was recorded 5 km (3 mi) southeast of Yauco, PR, at 5:26 pm AST on 17 June 2017 (21:26 UTC), 18 km deep.

USGS: Puerto Rico region

20 km (12 mi) W of Ponce, PR

5:26 pm AST, Jun 17, 2017 · · 18 km deep · released about 13 lb of TNT

Every earthquake near Yauco Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Guayanilla Municipio 1 kmPeñuelas Municipio 9 kmYauco Municipio 10 kmGuánica Municipio 14 kmSabana Grande Municipio 17 kmAdjuntas Municipio 20 kmPonce Municipio 22 kmMaricao Municipio 23 kmLajas 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
5:26 pm AST on 17 June 2017 ()
Where
5 km (3 mi) southeast of Yauco, PR · earthquakes near Yauco
Magnitude
M 1.8 (md)
Depth
18 km below the surface
Felt
no reports yet
Nearest
Guayanilla Municipio, 1 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3433 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, 5 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: Indios, Guayanilla, Magas Arriba, Palomas, Santo Domingo, Maria Antonia.

How big was it?

This earthquake released about 13 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 1,100,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 810,000× the energy of this one
  3. Around the size people start to feel M 3.0 72× the energy of this one
  4. This earthquake M 1.8 about 13 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.

Where

Epicentre 18.0063, -66.8105. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Guayanilla Municipio, PR 1 km (1 mi) E earthquakes near Guayanilla Municipio
Peñuelas Municipio, PR 9 km (6 mi) ENE earthquakes near Peñuelas Municipio
Yauco Municipio, PR 10 km (6 mi) NNW earthquakes near Yauco Municipio
Guánica Municipio, PR 14 km (8 mi) WSW earthquakes near Guánica Municipio
Sabana Grande Municipio, PR 17 km (11 mi) WNW earthquakes near Sabana Grande Municipio
Adjuntas Municipio, PR 20 km (13 mi) NNE earthquakes near Adjuntas Municipio

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

Aftershocks so far

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

  1. 2.0 7 km SSW of Tallaboa, Puerto Rico
  2. 2.2 3 km SSE of Boquerón, Puerto Rico
  3. 2.7 2 km ESE of Magas Arriba, Puerto Rico
  4. 2.3 4 km WSW of Tallaboa, Puerto Rico
  5. 2.1 0 km SSW of Cayuco, Puerto Rico
  6. 1.9 14 km SSW of Guánica, Puerto Rico
  7. 2.1 11 km S of Santa Isabel, Puerto Rico
  8. 2.6 13 km S of Santa Isabel, Puerto Rico
  9. 1.9 3 km SE of La Parguera, Puerto Rico
  10. 2.2 17 km S of Guánica, Puerto Rico
  11. 2.6 10 km NW of Puerto Real, Puerto Rico
  12. 2.3 2 km NE of Hormigueros, Puerto Rico
  13. 1.6 4 km ESE of La Parguera, Puerto Rico
  14. 2.1 9 km SSE of Tallaboa, Puerto Rico
  15. 1.7 1 km SW of Cabo Rojo, 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

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