QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

2 km S of Mayagüez, Puerto Rico

· 25 km deep · released about 220 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Hormigueros Municipio 5 kmAñasco Municipio 12 kmSan Germán Municipio 13 kmLas Marías Municipio 18 kmCabo Rojo Municipio 20 kmMaricao Municipio 21 kmRincón Municipio 22 kmSabana Grande Municipio 22 kmAguada 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 2.6 (md)
Depth
25 km below the surface
Felt
no reports yet
Nearest
Hormigueros Municipio, 5 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1421 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 220 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 68,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 48,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.3× the energy of this one
  4. This earthquake M 2.6 about 220 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 18.1748, -67.1367. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Hormigueros Municipio, PR 5 km (3 mi) NNW of here earthquakes near Hormigueros Municipio
Añasco Municipio, PR 12 km (8 mi) S of here earthquakes near Añasco Municipio
San Germán Municipio, PR 13 km (8 mi) NW of here earthquakes near San Germán Municipio
Las Marías Municipio, PR 18 km (11 mi) WSW of here earthquakes near Las Marías Municipio
Cabo Rojo Municipio, PR 20 km (13 mi) NNE of here earthquakes near Cabo Rojo Municipio
Maricao Municipio, PR 21 km (13 mi) W of here earthquakes near Maricao Municipio

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

Aftershocks so far

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

  1. 2.0 4 km ESE of La Parguera, Puerto Rico
  2. 2.3 4 km ESE of La Parguera, Puerto Rico
  3. 2.8 4 km ESE of La Parguera, Puerto Rico
  4. 2.4 1 km SW of Guánica, Puerto Rico
  5. 2.0 4 km ESE of La Parguera, Puerto Rico
  6. 2.7 0 km WNW of Magas Arriba, Puerto Rico
  7. 2.3 1 km SE of Indios, Puerto Rico
  8. 2.1 4 km SSE of Indios, Puerto Rico
  9. 2.5 3 km SSW of Indios, Puerto Rico
  10. 2.1 6 km WSW of Guánica, Puerto Rico
  11. 2.1 6 km SW of Guánica, Puerto Rico
  12. 2.7 10 km SSE of Maria Antonia, Puerto Rico
  13. 2.2 1 km SSE of Lluveras, Puerto Rico
  14. 2.1 1 km S of Guayanilla, Puerto Rico
  15. 1.8 6 km ESE 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.

For this area

The largest earthquake within 50 km in our catalogue was M 6.4 on 2020-01-07 — it released about 540,000 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.