QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6Md

3 km ESE of Hormigueros, Puerto Rico

· 19 km deep · released about 240 lb of TNT

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10 km30 km60 km120 km N Hormigueros Municipio 3 kmSan Germán Municipio 6 kmSabana Grande Municipio 16 kmLas Marías Municipio 17 kmCabo Rojo Municipio 17 kmMaricao Municipio 17 kmLajas Municipio 17 kmAñasco Municipio 18 kmYauco Municipio 25 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 2.6 (Md)
Depth
19 km below the surface
Felt
no reports yet
Nearest
Hormigueros Municipio, 3 km WNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3543 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

How big was it?

This earthquake released about 240 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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 18.1273, -67.0935. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hormigueros Municipio, PR 3 km (2 mi) ESE of here earthquakes near Hormigueros Municipio
San Germán Municipio, PR 6 km (4 mi) WNW of here earthquakes near San Germán Municipio
Sabana Grande Municipio, PR 16 km (10 mi) WNW of here earthquakes near Sabana Grande Municipio
Las Marías Municipio, PR 17 km (10 mi) SW of here earthquakes near Las Marías Municipio
Cabo Rojo Municipio, PR 17 km (11 mi) NNE of here earthquakes near Cabo Rojo Municipio
Maricao Municipio, PR 17 km (11 mi) WSW of here earthquakes near Maricao Municipio

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

Aftershocks so far

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

  1. 2.6 5 km NE of San Germán, Puerto Rico
  2. 2.0 12 km S of La Parguera, Puerto Rico
  3. 2.9 10 km W of Mayagüez, Puerto Rico
  4. 2.4 11 km WNW of Puerto Real, Puerto Rico
  5. 2.9 8 km N of Quebradillas, Puerto Rico
  6. 3.2 38 km WSW of Stella, Puerto Rico
  7. 3.0 20 km WSW of Stella, Puerto Rico
  8. 2.2 15 km SSW of La Parguera, Puerto Rico
  9. 2.0 10 km ESE of Maricao, Puerto Rico
  10. 2.7 18 km S of Indios, Puerto Rico
  11. 2.2 0 km NNW of Cabo Rojo, Puerto Rico
  12. 2.7 20 km SSE of Indios, Puerto Rico
  13. 1.9 14 km SSE of Guánica, Puerto Rico
  14. 1.5 3 km SE of Palmarejo, Puerto Rico
  15. 2.5 13 km SW of La Playa, 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.