QuakeIndex

Earthquake · reviewed by a seismologist

M 2.2md

Earthquake near Levittown, PR

No earthquake was likely felt in Levittown in the 24 hours to 11:31 pm AST (03:31 UTC). The last one was M 4.8, 99 km (61 mi) SW, at 9:19 am AST on 18 September 2026, estimated intensity III (weak) in town; 86 felt reports to USGS. Every earthquake near Levittown

This page: a magnitude 2.2 earthquake was recorded 6 km (3 mi) north-northwest of Levittown, PR, at 8:58 pm AST on 31 May 2018 (00:58 UTC), 83 km deep.

USGS: 5 km NNW of Levittown, Puerto Rico

18 km (11 mi) WNW of San Juan, PR · 13 km (8 mi) NNW of Bayamón, PR

8:58 pm AST, May 31, 2018 · · 83 km deep · released about 54 lb of TNT

Every earthquake near Levittown Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Toa Baja Municipio 4 kmDorado Municipio 6 kmCataño Municipio 8 kmToa Alta Municipio 15 kmVega Alta Municipio 15 kmBayamón Municipio 16 kmSan Juan Municipio 17 kmGuaynabo Municipio 19 kmVega Baja 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
8:58 pm AST on 31 May 2018 ()
Where
6 km (3 mi) north-northwest of Levittown, PR · earthquakes near Levittown
Magnitude
M 2.2 (md)
Depth
83 km below the surface
Felt
no reports yet
Nearest
Toa Baja Municipio, 4 km SSE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3086 days ago

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

At this magnitude and depth it was probably too small to be felt, even directly above it. In Levittown, 6 km away, the estimate is intensity I (not felt). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.

Earthquakes near other towns within 30 km: Ingenio, Dorado, Toa Baja, Sabana Seca, Candelaria Arenas, Campanilla.

How big was it?

This earthquake released about 54 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.2 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 280,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 200,000× the energy of this one
  3. Around the size people start to feel M 3.0 18× the energy of this one
  4. This earthquake M 2.2 about 54 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.

For this area

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists 3 earthquakes of M5 or more within 50 km:

  1. 5.8 12 km N of Garrochales, Puerto Rico · 38 km WNW of this epicentre
  2. 5.1 3 km W of Aguas Buenas, Puerto Rico · 27 km SSE of this epicentre
  3. 5.0 3 km N of Brenas, Puerto Rico · 14 km W of this epicentre

Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.

Where

Epicentre 18.4926, -66.2086. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Toa Baja Municipio, PR 4 km (3 mi) SSE earthquakes near Toa Baja Municipio
Dorado Municipio, PR 6 km (4 mi) WSW earthquakes near Dorado Municipio
Cataño Municipio, PR 8 km (5 mi) SE earthquakes near Cataño Municipio
Toa Alta Municipio, PR 15 km (9 mi) SSW earthquakes near Toa Alta Municipio
Vega Alta Municipio, PR 15 km (9 mi) WSW earthquakes near Vega Alta Municipio
Bayamón Municipio, PR 16 km (10 mi) SSE earthquakes near Bayamón Municipio

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

Aftershocks so far

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

  1. 2.1 14 km N of Brenas, Puerto Rico
  2. 1.8 4 km S of Caguas, Puerto Rico
  3. 2.3 3 km ENE of Bayamón, Puerto Rico
  4. 2.9 8 km NNW of Dorado, Puerto Rico
  5. 2.8 31 km N of San Juan, Puerto Rico
  6. 2.4 4 km NNE of Orocovis, Puerto Rico
  7. 2.3 20 km N of Garrochales, Puerto Rico
  8. 2.0 9 km N of Animas, Puerto Rico
  9. 2.9 49 km N of Brenas, Puerto Rico
  10. 2.0 1 km N of Bayamon, Puerto Rico
  11. 2.9 36 km N of Tierras Nuevas Poniente, Puerto Rico
  12. 2.5 7 km E of Jayuya, Puerto Rico
  13. 2.9 5 km NNW of Brenas, Puerto Rico
  14. 2.6 40 km NNW of Brenas, Puerto Rico
  15. 1.6 12 km NNW of Brenas, 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.