QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

1 km ESE of Los Llanos, Puerto Rico

· 7.0 km deep · released about 8.4 lb of TNT

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10 km30 km60 km120 km N Coamo Municipio 7 kmSanta Isabel Municipio 11 kmJuana Díaz Municipio 12 kmVillalba Municipio 12 kmAibonito Municipio 17 kmSalinas Municipio 17 kmBarranquitas Municipio 19 kmOrocovis Municipio 19 kmPonce 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
7.0 km below the surface
Felt
no reports yet
Nearest
Coamo Municipio, 7 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2775 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 8.4 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 1,800,000× 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 3.0 110× the energy of this one
  4. This earthquake M 1.6 about 8.4 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 18.0503, -66.3958. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Coamo Municipio, PR 7 km (4 mi) SW of here earthquakes near Coamo Municipio
Santa Isabel Municipio, PR 11 km (7 mi) N of here earthquakes near Santa Isabel Municipio
Juana Díaz Municipio, PR 12 km (7 mi) ENE of here earthquakes near Juana Díaz Municipio
Villalba Municipio, PR 12 km (7 mi) SE of here earthquakes near Villalba Municipio
Aibonito Municipio, PR 17 km (10 mi) WSW of here earthquakes near Aibonito Municipio
Salinas Municipio, PR 17 km (10 mi) WNW of here earthquakes near Salinas Municipio

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

Aftershocks so far

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

  1. 2.3 0 km SW of Jobos, Puerto Rico
  2. 2.1 6 km NW of Santo Domingo, Puerto Rico
  3. 1.6 11 km SSE of Central Aguirre, Puerto Rico
  4. 1.6 Puerto Rico region
  5. 1.6 1 km NNE of Jobos, Puerto Rico
  6. 1.6 0 km ESE of Jobos, Puerto Rico
  7. 2.0 0 km WSW of Jobos, Puerto Rico
  8. 2.2 0 km NNE of Jobos, Puerto Rico
  9. 2.5 0 km NNW of Jobos, Puerto Rico
  10. 1.7 1 km NE of Jobos, Puerto Rico
  11. 2.6 0 km W of Jobos, Puerto Rico
  12. 2.1 0 km NNW of Jobos, Puerto Rico
  13. 2.2 0 km NNE of Jobos, Puerto Rico
  14. 1.7 0 km NE of Jobos, Puerto Rico
  15. 2.6 2 km NNE of Jobos, 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.