QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

7 km WNW of Pole Ojea, Puerto Rico

· 37 km deep · released about 7.6 lb of TNT

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10 km30 km60 km120 km N Cabo Rojo Municipio 8 kmHormigueros Municipio 22 kmLajas Municipio 23 kmSan Germán Municipio 27 kmSabana Grande Municipio 35 kmAñasco Municipio 36 kmGuánica Municipio 36 kmRincón Municipio 39 kmLas Marías Municipio 40 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
37 km below the surface
Felt
no reports yet
Nearest
Cabo Rojo Municipio, 8 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2948 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 7.6 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 2,000,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,400,000× the energy of this one
  3. Around the size people start to feel M 3.0 130× the energy of this one
  4. This earthquake M 1.6 about 7.6 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 17.9896, -67.2585. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cabo Rojo Municipio, PR 8 km (5 mi) W of here earthquakes near Cabo Rojo Municipio
Hormigueros Municipio, PR 22 km (14 mi) SW of here earthquakes near Hormigueros Municipio
Lajas Municipio, PR 23 km (14 mi) W of here earthquakes near Lajas Municipio
San Germán Municipio, PR 27 km (17 mi) WSW of here earthquakes near San Germán Municipio
Sabana Grande Municipio, PR 35 km (21 mi) WSW of here earthquakes near Sabana Grande Municipio
Añasco Municipio, PR 36 km (22 mi) SSW of here earthquakes near Añasco Municipio

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

Aftershocks so far

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

  1. 1.9 19 km WNW of Puerto Real, Puerto Rico
  2. 2.4 10 km WSW of Stella, Puerto Rico
  3. 1.9 3 km NE of Mayagüez, Puerto Rico
  4. 1.9 3 km SSE of Maricao, Puerto Rico
  5. 2.0 11 km WNW of Puerto Real, Puerto Rico
  6. 1.9 2 km S of Añasco, Puerto Rico
  7. 2.1 3 km SW of Las Marías, Puerto Rico
  8. 2.4 2 km S of San Sebastián, Puerto Rico
  9. 1.8 8 km WSW of Pole Ojea, Puerto Rico
  10. 2.0 11 km NW of Puerto Real, Puerto Rico
  11. 2.6 29 km W of Rincón, Puerto Rico
  12. 1.9 13 km W of Puerto Real, Puerto Rico
  13. 1.9 3 km W of Sabana Grande, Puerto Rico
  14. 2.0 7 km WNW of Mayagüez, Puerto Rico
  15. 2.0 9 km SSE of Indios, 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.