QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

3 km WSW of Central Aguirre, Puerto Rico

· 6.9 km deep · released about 280 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Salinas Municipio 4 kmGuayama Municipio 13 kmSanta Isabel Municipio 14 kmCayey Municipio 21 kmAibonito Municipio 21 kmCoamo Municipio 21 kmArroyo Municipio 23 kmJuana Díaz Municipio 26 kmCidra Municipio 28 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
6.9 km below the surface
Felt
no reports yet
Nearest
Salinas Municipio, 4 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1443 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 55,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 39,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.5× 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 17.9403, -66.2535. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Salinas Municipio, PR 4 km (2 mi) SSE of here earthquakes near Salinas Municipio
Guayama Municipio, PR 13 km (8 mi) WSW of here earthquakes near Guayama Municipio
Santa Isabel Municipio, PR 14 km (9 mi) E of here earthquakes near Santa Isabel Municipio
Cayey Municipio, PR 21 km (13 mi) SSW of here earthquakes near Cayey Municipio
Aibonito Municipio, PR 21 km (13 mi) S of here earthquakes near Aibonito Municipio
Coamo Municipio, PR 21 km (13 mi) SSE of here earthquakes near Coamo Municipio

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

Aftershocks so far

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

  1. 2.6 14 km SW of Potala Pastillo, Puerto Rico
  2. 3.3 3 km SSE of Pájaros, Puerto Rico
  3. 2.5 5 km SSW of Potala Pastillo, Puerto Rico
  4. 2.7 2 km WNW of Gurabo, Puerto Rico
  5. 2.7 18 km SSE of Arroyo, Puerto Rico
  6. 2.3 4 km W of Las Piedras, Puerto Rico
  7. 2.4 7 km WNW of Coto Laurel, Puerto Rico
  8. 2.0 2 km NW of Coto Laurel, Puerto Rico
  9. 2.2 3 km S of Potala Pastillo, Puerto Rico
  10. 3.3 5 km NW of Aguas Buenas, Puerto Rico
  11. 2.1 5 km NNE of Ponce, Puerto Rico
  12. 2.7 0 km N of Santa Isabel, Puerto Rico
  13. 2.5 7 km ENE of Jayuya, Puerto Rico
  14. 2.1 3 km SSW of Capitanejo, Puerto Rico
  15. 2.4 1 km S of Tallaboa, 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 28,000 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.