QuakeIndex

Earthquake · reviewed by a seismologist

M 1.5md

5 km SE of Boquerón, Puerto Rico

· 11 km deep · released about 5.4 lb of TNT

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10 km30 km60 km120 km N Cabo Rojo Municipio 6 kmLajas Municipio 9 kmHormigueros Municipio 16 kmSan Germán Municipio 16 kmSabana Grande Municipio 22 kmGuánica Municipio 22 kmMaricao Municipio 29 kmYauco Municipio 30 kmLas Marías Municipio 31 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 1.5 (md)
Depth
11 km below the surface
Felt
no reports yet
Nearest
Cabo Rojo Municipio, 6 km W
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2639 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 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
  3. Around the size people start to feel M 3.0 180× the energy of this one
  4. This earthquake M 1.5 about 5.4 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 17.9908, -67.1271. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cabo Rojo Municipio, PR 6 km (4 mi) E of here earthquakes near Cabo Rojo Municipio
Lajas Municipio, PR 9 km (6 mi) W of here earthquakes near Lajas Municipio
Hormigueros Municipio, PR 16 km (10 mi) S of here earthquakes near Hormigueros Municipio
San Germán Municipio, PR 16 km (10 mi) SW of here earthquakes near San Germán Municipio
Sabana Grande Municipio, PR 22 km (13 mi) WSW of here earthquakes near Sabana Grande Municipio
Guánica Municipio, PR 22 km (14 mi) WNW of here earthquakes near Guánica Municipio

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

Aftershocks so far

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

  1. 2.0 9 km SSW of Pole Ojea, Puerto Rico
  2. 2.0 9 km S of Pole Ojea, Puerto Rico
  3. 2.3 5 km ENE of La Parguera, Puerto Rico
  4. 1.8 12 km NW of Puerto Real, Puerto Rico
  5. 1.7 1 km NE of Liborio Negron Torres, Puerto Rico
  6. 2.0 4 km NNE of Sabana Grande, Puerto Rico
  7. 2.3 23 km W of Puerto Real, Puerto Rico
  8. 1.9 4 km SSW of Indios, Puerto Rico
  9. 2.1 6 km E of Espino, Puerto Rico
  10. 1.8 8 km SW of La Playa, Puerto Rico
  11. 2.2 24 km WSW of Pole Ojea, Puerto Rico
  12. 1.5 3 km SE of Boquerón, Puerto Rico
  13. 2.0 3 km W of Palmarejo, Puerto Rico
  14. 1.8 1 km SE of Lajas, Puerto Rico
  15. 2.1 9 km SSE of La Parguera, 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.