QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

Earthquake near Morovis, PR

No earthquake was likely felt in Morovis in the 24 hours to 8:31 pm AST (00:31 UTC). The last one was M 4.8, 71 km (44 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 Morovis

This page: a magnitude 2.0 earthquake was recorded 5 km (3 mi) south of Morovis, PR, at 3:50 am AST on 28 November 2021 (07:50 UTC), 26 km deep.

USGS: 5 km S of Morovis, Puerto Rico

39 km (24 mi) WSW of San Juan, PR · 28 km (17 mi) WSW of Bayamón, PR

3:50 am AST, Nov 28, 2021 · · 26 km deep · released about 29 lb of TNT

Every earthquake near Morovis Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Morovis Municipio 4 kmOrocovis Municipio 8 kmCorozal Municipio 9 kmCiales Municipio 12 kmBarranquitas Municipio 13 kmNaranjito Municipio 16 kmVillalba Municipio 18 kmVega Alta Municipio 19 kmToa Alta Municipio 19 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
3:50 am AST on 28 November 2021 ()
Where
5 km (3 mi) south of Morovis, PR · earthquakes near Morovis
Magnitude
M 2.0 (md)
Depth
26 km below the surface
Felt
no reports yet
Nearest
Morovis Municipio, 4 km NNW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1810 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 Morovis, 5 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: Franquez, Barahona, Ciales, Corozal, Miranda, Barranquitas.

How big was it?

This earthquake released about 29 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 5.8 520,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 370,000× the energy of this one
  3. Around the size people start to feel M 3.0 33× the energy of this one
  4. This earthquake M 2.0 about 29 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

The largest earthquake within 50 km since 2016 was M 5.6 on 2020-01-07 — about 260,000 times the energy of this one.

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 · 36 km NNW of this epicentre
  2. 5.1 3 km W of Aguas Buenas, Puerto Rico · 29 km E of this epicentre
  3. 5.0 3 km N of Brenas, Puerto Rico · 25 km NNE 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 18.2805, -66.4046. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Morovis Municipio, PR 4 km (3 mi) NNW earthquakes near Morovis Municipio
Orocovis Municipio, PR 8 km (5 mi) SSW earthquakes near Orocovis Municipio
Corozal Municipio, PR 9 km (5 mi) ENE earthquakes near Corozal Municipio
Ciales Municipio, PR 12 km (7 mi) W earthquakes near Ciales Municipio
Barranquitas Municipio, PR 13 km (8 mi) SE earthquakes near Barranquitas Municipio
Naranjito Municipio, PR 16 km (10 mi) E earthquakes near Naranjito Municipio

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

Aftershocks so far

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

  1. 3.3 1 km SW of Cayey, Puerto Rico
  2. 1.9 10 km SW of Potala Pastillo, Puerto Rico
  3. 2.8 1 km SSW of Cayey, Puerto Rico
  4. 2.6 1 km S of Magas Arriba, Puerto Rico
  5. 3.2 5 km SSE of Ponce, Puerto Rico
  6. 2.7 6 km SSE of Ponce, Puerto Rico
  7. 2.3 1 km NE of Magas Arriba, Puerto Rico
  8. 2.4 2 km NNW of Guayanilla, Puerto Rico
  9. 2.6 2 km S of Santo Domingo, Puerto Rico
  10. 2.9 3 km S of Magas Arriba, Puerto Rico
  11. 2.5 0 km NNW of Magas Arriba, Puerto Rico
  12. 3.3 1 km W of Tallaboa, Puerto Rico
  13. 3.2 1 km NE of Magas Arriba, Puerto Rico
  14. 2.4 5 km SE of Tallaboa, 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.