QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9Md

7 km SE of Pole Ojea, Puerto Rico

· 12 km deep · released about 21 lb of TNT

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10 km30 km60 km120 km N Cabo Rojo Municipio 10 kmLajas Municipio 12 kmGuánica Municipio 23 kmSan Germán Municipio 23 kmHormigueros Municipio 24 kmSabana Grande Municipio 27 kmYauco Municipio 35 kmMaricao Municipio 35 kmGuayanilla Municipio 37 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 1.9 (Md)
Depth
12 km below the surface
Felt
no reports yet
Nearest
Cabo Rojo Municipio, 10 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3555 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 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 710,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 500,000× the energy of this one
  3. Around the size people start to feel M 3.0 45× the energy of this one
  4. This earthquake M 1.9 about 21 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 17.9209, -67.1370. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Cabo Rojo Municipio, PR 10 km (6 mi) SSE of here earthquakes near Cabo Rojo Municipio
Lajas Municipio, PR 12 km (8 mi) WSW of here earthquakes near Lajas Municipio
Guánica Municipio, PR 23 km (14 mi) W of here earthquakes near Guánica Municipio
San Germán Municipio, PR 23 km (14 mi) SSW of here earthquakes near San Germán Municipio
Hormigueros Municipio, PR 24 km (15 mi) S of here earthquakes near Hormigueros Municipio
Sabana Grande Municipio, PR 27 km (17 mi) SW of here earthquakes near Sabana Grande Municipio

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

Aftershocks so far

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

  1. 3.0 20 km WSW of Stella, Puerto Rico
  2. 2.2 15 km SSW of La Parguera, Puerto Rico
  3. 2.0 10 km ESE of Maricao, Puerto Rico
  4. 2.7 18 km S of Indios, Puerto Rico
  5. 2.2 0 km NNW of Cabo Rojo, Puerto Rico
  6. 2.7 20 km SSE of Indios, Puerto Rico
  7. 1.9 14 km SSE of Guánica, Puerto Rico
  8. 1.5 3 km SE of Palmarejo, Puerto Rico
  9. 2.5 13 km SW of La Playa, Puerto Rico
  10. 1.5 3 km SSE of Palmarejo, Puerto Rico
  11. 2.5 1 km E of La Parguera, Puerto Rico
  12. 2.3 13 km SSW of La Parguera, Puerto Rico
  13. 2.0 14 km SSW of La Parguera, Puerto Rico
  14. 2.5 27 km S of Indios, Puerto Rico
  15. 1.5 17 km SSW 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.