QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

5 km NNW of Coamo, Puerto Rico

· 8.0 km deep · released about 250 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Coamo Municipio 4 kmBarranquitas Municipio 10 kmVillalba Municipio 10 kmAibonito Municipio 11 kmOrocovis Municipio 12 kmComerío Municipio 19 kmJuana Díaz Municipio 19 kmCorozal Municipio 20 kmSanta Isabel Municipio 20 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
8.0 km below the surface
Felt
no reports yet
Nearest
Coamo Municipio, 4 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 276 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 18.1320, -66.3730. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Coamo Municipio, PR 4 km (2 mi) NNW of here earthquakes near Coamo Municipio
Barranquitas Municipio, PR 10 km (6 mi) SW of here earthquakes near Barranquitas Municipio
Villalba Municipio, PR 10 km (7 mi) E of here earthquakes near Villalba Municipio
Aibonito Municipio, PR 11 km (7 mi) W of here earthquakes near Aibonito Municipio
Orocovis Municipio, PR 12 km (7 mi) SE of here earthquakes near Orocovis Municipio
Comerío Municipio, PR 19 km (12 mi) WSW of here earthquakes near Comerío Municipio

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

Aftershocks so far

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

  1. 2.2 7 km SSE of Tallaboa, Puerto Rico
  2. 1.9 1 km E of Cayey, Puerto Rico
  3. 2.0 3 km SSE of Magas Arriba, Puerto Rico
  4. 2.4 1 km SE of Magas Arriba, Puerto Rico
  5. 1.8 3 km NNE of Jobos, Puerto Rico
  6. 2.4 2 km WSW of Coto Laurel, Puerto Rico
  7. 2.8 5 km S of Magas Arriba, Puerto Rico
  8. 2.8 1 km SW of Guayanilla, Puerto Rico
  9. 2.1 1 km SSE of Santa Isabel, Puerto Rico
  10. 1.9 2 km NNW of Guayanilla, Puerto Rico
  11. 3.3 5 km NNE of Aguas Buenas, Puerto Rico
  12. 2.5 2 km WSW of Ponce, Puerto Rico
  13. 1.9 3 km E of G. L. Garcia, Puerto Rico
  14. 2.8 2 km NW of Levittown, Puerto Rico
  15. 1.8 2 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.