QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

6 km WSW of Guaynabo, Puerto Rico

· 58 km deep · released about 240 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Bayamón Municipio 3 kmGuaynabo Municipio 6 kmAguas Buenas Municipio 8 kmToa Alta Municipio 10 kmNaranjito Municipio 10 kmComerío Municipio 12 kmCataño Municipio 13 kmSan Juan Municipio 15 kmToa Baja Municipio 15 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
58 km below the surface
Felt
5 reports · strongest reported intensity IV
Nearest
Bayamón Municipio, 3 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 461 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 5 people have reported feeling it to USGS.

How big was it?

This earthquake released about 240 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 63,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 45,000× the energy of this one
  3. Around the size people start to feel M 3.0 4× the energy of this one
  4. This earthquake M 2.6 about 240 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 18.3247, -66.1648. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Bayamón Municipio, PR 3 km (2 mi) S of here earthquakes near Bayamón Municipio
Guaynabo Municipio, PR 6 km (4 mi) WSW of here earthquakes near Guaynabo Municipio
Aguas Buenas Municipio, PR 8 km (5 mi) NNW of here earthquakes near Aguas Buenas Municipio
Toa Alta Municipio, PR 10 km (6 mi) ESE of here earthquakes near Toa Alta Municipio
Naranjito Municipio, PR 10 km (6 mi) ENE of here earthquakes near Naranjito Municipio
Comerío Municipio, PR 12 km (8 mi) NNE of here earthquakes near Comerío Municipio

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

Aftershocks so far

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

  1. 2.5 6 km WNW of Aguas Buenas, Puerto Rico
  2. 2.5 3 km S of Salinas, Puerto Rico
  3. 2.1 4 km WNW of Orocovis, Puerto Rico
  4. 2.7 3 km SSE of San Lorenzo, Puerto Rico
  5. 2.4 4 km S of Salinas, Puerto Rico
  6. 3.0 1 km SE of Coto Norte, Puerto Rico
  7. 2.2 3 km SSE of G. L. Garcia, Puerto Rico
  8. 2.2 4 km S of Salinas, Puerto Rico
  9. 2.4 6 km N of Villalba, Puerto Rico
  10. 2.8 2 km ENE of Parcelas Nuevas, Puerto Rico
  11. 2.6 21 km NNE of Dorado, Puerto Rico
  12. 3.6 20 km N of Dorado, Puerto Rico
  13. 1.8 5 km W of Rosa Sanchez, Puerto Rico
  14. 2.0 5 km WSW of Central Aguirre, Puerto Rico
  15. 1.8 4 km E of Pastos, 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 4.6 on 2019-03-12 — it released about 1,000 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.