QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

15 km S of Tallaboa, Puerto Rico

· 42 km deep · released about 8.1 lb of TNT

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10 km30 km60 km120 km N Guayanilla Municipio 18 kmPeñuelas Municipio 19 kmPonce Municipio 21 kmGuánica Municipio 23 kmYauco Municipio 29 kmJuana Díaz Municipio 30 kmSabana Grande Municipio 34 kmLajas Municipio 35 kmAdjuntas Municipio 36 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
Magnitude
M 1.6 (md)
Depth
42 km below the surface
Felt
no reports yet
Nearest
Guayanilla Municipio, 18 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2874 days ago

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

How big was it?

This earthquake released about 8.1 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,300,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 8.1 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 17.8556, -66.7310. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Guayanilla Municipio, PR 18 km (11 mi) SSE of here earthquakes near Guayanilla Municipio
Peñuelas Municipio, PR 19 km (12 mi) S of here earthquakes near Peñuelas Municipio
Ponce Municipio, PR 21 km (13 mi) SW of here earthquakes near Ponce Municipio
Guánica Municipio, PR 23 km (14 mi) ESE of here earthquakes near Guánica Municipio
Yauco Municipio, PR 29 km (18 mi) SSE of here earthquakes near Yauco Municipio
Juana Díaz Municipio, PR 30 km (19 mi) WSW of here earthquakes near Juana Díaz 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. 2.0 17 km S of Pole Ojea, Puerto Rico
  2. 1.8 10 km SSE of La Parguera, Puerto Rico
  3. 1.5 Puerto Rico region
  4. 2.1 1 km NNW of Sabana Grande, Puerto Rico
  5. 2.0 0 km W of Sabana Grande, Puerto Rico
  6. 2.4 10 km SE of Pole Ojea, Puerto Rico
  7. 1.9 17 km S of Pole Ojea, Puerto Rico
  8. 1.8 0 km N of Guayanilla, Puerto Rico
  9. 1.8 2 km SE of Maricao, Puerto Rico
  10. 2.6 Puerto Rico region
  11. 1.8 23 km S of La Parguera, Puerto Rico
  12. 1.8 9 km S of Guánica, Puerto Rico
  13. 1.7 3 km NNW of Sabana Grande, Puerto Rico
  14. 1.7 5 km E of Lajas, Puerto Rico
  15. 1.9 9 km NNE of Lluveras, 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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