QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

2 km WNW of Piedra Gorda, Puerto Rico

· 18 km deep · released about 250 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Quebradillas Municipio 3 kmCamuy Municipio 5 kmHatillo Municipio 11 kmIsabela Municipio 12 kmSan Sebastián Municipio 14 kmLares Municipio 19 kmMoca Municipio 20 kmArecibo Municipio 24 kmLas Marías 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
18 km below the surface
Felt
no reports yet
Nearest
Quebradillas Municipio, 3 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 507 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 250 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 61,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 43,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.8× the energy of this one
  4. This earthquake M 2.6 about 250 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 18.4423, -66.9063. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Quebradillas Municipio, PR 3 km (2 mi) SE of here earthquakes near Quebradillas Municipio
Camuy Municipio, PR 5 km (3 mi) W of here earthquakes near Camuy Municipio
Hatillo Municipio, PR 11 km (7 mi) W of here earthquakes near Hatillo Municipio
Isabela Municipio, PR 12 km (8 mi) ESE of here earthquakes near Isabela Municipio
San Sebastián Municipio, PR 14 km (9 mi) NNE of here earthquakes near San Sebastián Municipio
Lares Municipio, PR 19 km (12 mi) NNW of here earthquakes near Lares Municipio

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

Aftershocks so far

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

  1. 2.0 5 km E of Las Marías, Puerto Rico
  2. 3.1 19 km N of Arecibo, Puerto Rico
  3. 2.6 2 km SW of Lluveras, Puerto Rico
  4. 2.9 4 km SW of Maricao, Puerto Rico
  5. 2.1 2 km ESE of Lluveras, Puerto Rico
  6. 2.3 1 km WSW of Guayanilla, Puerto Rico
  7. 2.8 4 km SW of La Playa, Puerto Rico
  8. 2.4 3 km N of Hormigueros, Puerto Rico
  9. 2.0 3 km SW of Utuado, Puerto Rico
  10. 2.5 3 km NNE of Mayagüez, Puerto Rico
  11. 2.6 6 km SSW of Stella, Puerto Rico
  12. 2.0 1 km SE of Yauco, Puerto Rico
  13. 2.7 5 km WSW of Las Marías, Puerto Rico
  14. 2.3 1 km E of Magas Arriba, Puerto Rico
  15. 2.0 0 km E of Magas Arriba, 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 5.6 on 2020-01-07 — it released about 31,000 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.