QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

20 km NE of San Juan, Puerto Rico

· 64 km deep · released about 32 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Loíza Municipio 19 kmSan Juan Municipio 23 kmCarolina Municipio 24 kmCataño Municipio 25 kmToa Baja Municipio 28 kmTrujillo Alto Municipio 31 kmRío Grande Municipio 32 kmGuaynabo Municipio 33 kmCanóvanas Municipio 33 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 2.0 (md)
Depth
64 km below the surface
Felt
no reports yet
Nearest
Loíza Municipio, 19 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2808 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 32 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 470,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 330,000× the energy of this one
  3. Around the size people start to feel M 3.0 30× the energy of this one
  4. This earthquake M 2.0 about 32 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 18.6091, -65.9823. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Loíza Municipio, PR 19 km (12 mi) NNW of here earthquakes near Loíza Municipio
San Juan Municipio, PR 23 km (14 mi) NNE of here earthquakes near San Juan Municipio
Carolina Municipio, PR 24 km (15 mi) N of here earthquakes near Carolina Municipio
Cataño Municipio, PR 25 km (16 mi) NE of here earthquakes near Cataño Municipio
Toa Baja Municipio, PR 28 km (17 mi) NE of here earthquakes near Toa Baja Municipio
Trujillo Alto Municipio, PR 31 km (19 mi) N 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

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

  1. 1.7 3 km ENE of Vieques, Puerto Rico
  2. 2.1 4 km N of Suárez, Puerto Rico
  3. 2.8 42 km NNE of Luquillo, Puerto Rico
  4. 2.9 39 km NNE of Luquillo, Puerto Rico
  5. 2.1 12 km NE of Vieques, Puerto Rico
  6. 2.7 14 km NE of Luquillo, Puerto Rico
  7. 2.0 14 km NE of Luquillo, Puerto Rico
  8. 2.2 16 km N of San Juan, Puerto Rico
  9. 2.1 54 km N of San Juan, Puerto Rico
  10. 1.7 4 km ENE of Bayamon, Puerto Rico
  11. 2.6 31 km NNE of Brenas, Puerto Rico
  12. 2.6 49 km N of Brenas, Puerto Rico
  13. 2.5 22 km NNE of Playa Fortuna, Puerto Rico
  14. 2.2 45 km NNE of Luquillo, Puerto Rico
  15. 3.0 2 km WSW of Vega Baja, 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 4.4 on 2018-12-09 — it released about 3,700 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.