QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

2 km WNW of Sabana Grande, Puerto Rico

· 13 km deep · released about 220 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Sabana Grande Municipio 4 kmSan Germán Municipio 6 kmMaricao Municipio 11 kmYauco Municipio 13 kmLajas Municipio 13 kmHormigueros Municipio 15 kmLas Marías Municipio 16 kmGuánica Municipio 16 kmGuayanilla Municipio 21 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
13 km below the surface
Felt
no reports yet
Nearest
Sabana Grande Municipio, 4 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1197 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 70,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 50,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.4× 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 18.0833, -66.9823. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Sabana Grande Municipio, PR 4 km (2 mi) W of here earthquakes near Sabana Grande Municipio
San Germán Municipio, PR 6 km (4 mi) ESE of here earthquakes near San Germán Municipio
Maricao Municipio, PR 11 km (7 mi) SSW of here earthquakes near Maricao Municipio
Yauco Municipio, PR 13 km (8 mi) W of here earthquakes near Yauco Municipio
Lajas Municipio, PR 13 km (8 mi) NNE of here earthquakes near Lajas Municipio
Hormigueros Municipio, PR 15 km (9 mi) ESE of here earthquakes near Hormigueros Municipio

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

Aftershocks so far

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

  1. 2.2 1 km W of Indios, Puerto Rico
  2. 2.5 7 km SSE of Maria Antonia, Puerto Rico
  3. 2.3 7 km WSW of Fuig, Puerto Rico
  4. 2.2 3 km SW of Indios, Puerto Rico
  5. 2.0 5 km SSE of Maricao, Puerto Rico
  6. 2.5 3 km WSW of La Parguera, Puerto Rico
  7. 3.4 3 km WSW of La Parguera, Puerto Rico
  8. 1.8 5 km S of Indios, Puerto Rico
  9. 1.6 6 km WSW of Fuig, Puerto Rico
  10. 2.2 2 km NE of Magas Arriba, Puerto Rico
  11. 2.0 2 km WNW of Yauco, Puerto Rico
  12. 2.8 3 km WSW of La Parguera, Puerto Rico
  13. 2.2 4 km ENE of Maricao, Puerto Rico
  14. 2.5 3 km NE of San Germán, Puerto Rico
  15. 3.4 1 km N 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.

For this area

The largest earthquake within 50 km in our catalogue was M 6.4 on 2020-01-07 — it released about 560,000 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.