QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9Md

5 km N of Suárez, Puerto Rico

· 17 km deep · released about 21 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Loíza Municipio 10 kmRío Grande Municipio 13 kmCarolina Municipio 15 kmCanóvanas Municipio 17 kmLuquillo Municipio 20 kmTrujillo Alto Municipio 22 kmSan Juan Municipio 23 kmGurabo Municipio 27 kmJuncos Municipio 29 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 1.9 (Md)
Depth
17 km below the surface
Felt
no reports yet
Nearest
Loíza Municipio, 10 km WSW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3606 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

How big was it?

This earthquake released about 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 710,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 500,000× the energy of this one
  3. Around the size people start to feel M 3.0 45× the energy of this one
  4. This earthquake M 1.9 about 21 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 18.4822, -65.8580. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Loíza Municipio, PR 10 km (6 mi) ENE of here earthquakes near Loíza Municipio
Río Grande Municipio, PR 13 km (8 mi) NNW of here earthquakes near Río Grande Municipio
Carolina Municipio, PR 15 km (9 mi) NE of here earthquakes near Carolina Municipio
Canóvanas Municipio, PR 17 km (11 mi) N of here earthquakes near Canóvanas Municipio
Luquillo Municipio, PR 20 km (13 mi) NW of here earthquakes near Luquillo Municipio
Trujillo Alto Municipio, PR 22 km (14 mi) NE of here earthquakes near Trujillo Alto Municipio

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

Aftershocks so far

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

  1. 3.2 53 km NNE of Vieques, Puerto Rico
  2. 2.5 0 km SW of Aguas Claras, Puerto Rico
  3. 2.6 46 km NNE of San Juan, Puerto Rico
  4. 1.6 3 km SE of Punta Santiago, Puerto Rico
  5. 2.5 20 km NNE of San Juan, Puerto Rico
  6. 3.6 20 km NNW of Loíza, Puerto Rico
  7. 2.1 46 km NNE of Suárez, Puerto Rico
  8. 2.8 53 km N of Suárez, Puerto Rico
  9. 1.5 2 km WSW of Las Piedras, Puerto Rico
  10. 3.1 1 km SSE of Pájaros, Puerto Rico
  11. 2.4 3 km WSW of Gurabo, Puerto Rico
  12. 3.1 20 km N of Dorado, Puerto Rico
  13. 3.2 17 km WNW of Culebra, Puerto Rico
  14. 2.1 2 km SW of Canovanas, Puerto Rico
  15. 2.2 1 km ESE of Cidra, 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.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.