QuakeIndex

Earthquake · reviewed by a seismologist

M 3.2md

Earthquake near Mora, PR

No earthquake was likely felt in Mora in the 24 hours to 4:19 pm AST (20:19 UTC). The last one was M 3.5, 12 km (7 mi) SW, at 12:03 am AST on 6 November 2026, estimated intensity II (weak) in town. Every earthquake near Mora

This page: a magnitude 3.2 earthquake was recorded 6 km (4 mi) south-southeast of Mora, PR, at 3:55 am AST on 1 November 2024 (07:55 UTC), 94 km deep.

USGS: 5 km SSE of Mora, Puerto Rico

99 km (62 mi) W of San Juan, PR · 28 km (17 mi) NNE of Mayagüez, PR

3:55 am AST, Nov 1, 2024 · · 94 km deep · released about 1,700 lb of TNT

Every earthquake near Mora Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Isabela Municipio 8 kmMoca Municipio 9 kmQuebradillas Municipio 10 kmSan Sebastián Municipio 10 kmCamuy Municipio 15 kmAguadilla Municipio 16 kmAñasco Municipio 20 kmAguada Municipio 20 kmLares Municipio 21 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
3:55 am AST on 1 November 2024 ()
Where
6 km (4 mi) south-southeast of Mora, PR · earthquakes near Mora
Magnitude
M 3.2 (md)
Depth
94 km below the surface
Felt
no reports yet
Nearest
Isabela Municipio, 8 km N
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 664 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage.

At this magnitude and depth it was probably too small to be felt, even directly above it. In Mora, 6 km away, the estimate is intensity II (weak). 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: Aceitunas, Cacao, San Sebastián, Quebradillas, Isabela, Rafael Hernandez.

How big was it?

This earthquake released about 1,700 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.2 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 200,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 8,800× the energy of this one
  3. Magna, Utah 2020 M 5.7 6,200× the energy of this one
  4. This earthquake M 3.2 about 1,700 lb of TNT
  5. Around the size people start to feel M 3.0 this one released 1.8× more

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

The largest earthquake within 50 km since 2016 was M 5.6 on 2020-01-07 — about 4,400 times the energy of this one.

Before 2016, the USGS record lists 11 earthquakes of M5 or more within 50 km; the five largest:

  1. 7.1 24 km NNW of San Antonio, Puerto Rico · 37 km NNW of this epicentre
  2. 6.4 32 km NW of Aguadilla, Puerto Rico · 46 km WNW of this epicentre
  3. 6.3 6 km WNW of Aguadilla, Puerto Rico · 22 km W of this epicentre
  4. 6.1 15 km WNW of San Antonio, Puerto Rico · 28 km WNW of this epicentre
  5. 6.1 18 km NNW of San Antonio, Puerto Rico · 31 km NW 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 18.4165, -67.0037. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Isabela Municipio, PR 8 km (5 mi) N earthquakes near Isabela Municipio
Moca Municipio, PR 9 km (6 mi) WSW earthquakes near Moca Municipio
Quebradillas Municipio, PR 10 km (6 mi) NE earthquakes near Quebradillas Municipio
San Sebastián Municipio, PR 10 km (6 mi) SSE earthquakes near San Sebastián Municipio
Camuy Municipio, PR 15 km (9 mi) ENE earthquakes near Camuy Municipio
Aguadilla Municipio, PR 16 km (10 mi) WNW earthquakes near Aguadilla Municipio

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

Aftershocks so far

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

  1. 3.1 13 km W of Mayagüez, Puerto Rico
  2. 2.9 17 km N of Isabela, Puerto Rico
  3. 3.3 22 km W of Stella, Puerto Rico
  4. 2.3 2 km WNW of Indios, Puerto Rico
  5. 3.0 14 km SW of La Playa, Puerto Rico
  6. 2.6 5 km SSW of Palmarejo, Puerto Rico
  7. 2.9 21 km NW of Rincón, Puerto Rico
  8. 2.3 3 km NNW of La Parguera, Puerto Rico
  9. 2.9 2 km ENE of Maria Antonia, Puerto Rico
  10. 3.4 2 km NNE of La Parguera, Puerto Rico
  11. 2.4 6 km W of Fuig, Puerto Rico
  12. 2.0 2 km WSW of Fuig, Puerto Rico
  13. 3.4 19 km SSW of Stella, Puerto Rico
  14. 2.6 5 km NNW of Arecibo, Puerto Rico
  15. 2.4 2 km W of Indios, 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.