QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

Puerto Rico region

· 17 km deep · released about 9 lb of TNT

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10 km30 km60 km120 km N Ponce Municipio 12 kmJayuya Municipio 12 kmPeñuelas Municipio 14 kmVillalba Municipio 16 kmAdjuntas Municipio 16 kmJuana Díaz Municipio 19 kmUtuado Municipio 20 kmGuayanilla Municipio 22 kmOrocovis Municipio 23 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
17 km below the surface
Felt
no reports yet
Nearest
Ponce Municipio, 12 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3125 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 9 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 1,700,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,200,000× the energy of this one
  3. Around the size people start to feel M 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 9 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 18.1083, -66.6236. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Ponce Municipio, PR 12 km (7 mi) N of here earthquakes near Ponce Municipio
Jayuya Municipio, PR 12 km (8 mi) SSW of here earthquakes near Jayuya Municipio
Peñuelas Municipio, PR 14 km (9 mi) NE of here earthquakes near Peñuelas Municipio
Villalba Municipio, PR 16 km (10 mi) W of here earthquakes near Villalba Municipio
Adjuntas Municipio, PR 16 km (10 mi) ESE of here earthquakes near Adjuntas Municipio
Juana Díaz Municipio, PR 19 km (12 mi) NW 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

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

  1. 1.9 1 km SSE of Las Marías, Puerto Rico
  2. 2.8 2 km ESE of Las Marías, Puerto Rico
  3. 2.3 3 km ESE of Las Marías, Puerto Rico
  4. 2.4 3 km ESE of Las Marías, Puerto Rico
  5. 1.9 5 km ESE of Las Marías, Puerto Rico
  6. 2.4 3 km ESE of Las Marías, Puerto Rico
  7. 3.0 0 km SE of Garrochales, Puerto Rico
  8. 1.9 8 km SSE of Indios, Puerto Rico
  9. 2.4 2 km SSW of Sabana Grande, Puerto Rico
  10. 2.4 7 km NW of Santo Domingo, Puerto Rico
  11. 1.9 4 km SSW of Liborio Negron Torres, Puerto Rico
  12. 2.3 17 km S of Tallaboa, Puerto Rico
  13. 1.7 4 km SW of Maricao, Puerto Rico
  14. 3.2 13 km S of Potala Pastillo, Puerto Rico
  15. 1.7 13 km SSE 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.