QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

2 km SE of Las Marías, Puerto Rico

· 18 km deep · released about 280 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Las Marías Municipio 1 kmMaricao Municipio 8 kmSan Sebastián Municipio 11 kmLares Municipio 12 kmSan Germán Municipio 15 kmSabana Grande Municipio 17 kmAñasco Municipio 17 kmHormigueros Municipio 19 kmMoca Municipio 19 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
18 km below the surface
Felt
no reports yet
Nearest
Las Marías Municipio, 1 km SSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 894 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 280 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 53,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 38,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.3× the energy of this one
  4. This earthquake M 2.6 about 280 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 18.2342, -66.9757. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Las Marías Municipio, PR 1 km (0 mi) NNE of here earthquakes near Las Marías Municipio
Maricao Municipio, PR 8 km (5 mi) NNW of here earthquakes near Maricao Municipio
San Sebastián Municipio, PR 11 km (7 mi) S of here earthquakes near San Sebastián Municipio
Lares Municipio, PR 12 km (8 mi) WSW of here earthquakes near Lares Municipio
San Germán Municipio, PR 15 km (10 mi) NNE of here earthquakes near San Germán Municipio
Sabana Grande Municipio, PR 17 km (11 mi) N 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

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

  1. 2.1 2 km SW of Guánica, Puerto Rico
  2. 2.0 13 km SSW of Guánica, Puerto Rico
  3. 2.5 2 km NNW of Guayanilla, Puerto Rico
  4. 2.0 2 km SSW of Indios, Puerto Rico
  5. 2.7 8 km SW of Guánica, Puerto Rico
  6. 2.4 4 km SW of Maricao, Puerto Rico
  7. 2.0 10 km ESE of Maricao, Puerto Rico
  8. 2.4 8 km SW of Guánica, Puerto Rico
  9. 3.1 7 km SW of Guánica, Puerto Rico
  10. 2.4 4 km WSW of La Parguera, Puerto Rico
  11. 2.1 4 km WNW of Santo Domingo, Puerto Rico
  12. 2.2 10 km SSE of Pole Ojea, Puerto Rico
  13. 2.5 6 km SW of La Parguera, Puerto Rico
  14. 2.9 0 km N of Maria Antonia, Puerto Rico
  15. 2.3 6 km SSE of Guánica, 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 420,000 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.