QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0md

Earthquake near Coamo, PR

No earthquake was likely felt in Coamo in the 24 hours to 4:24 pm AST (20:24 UTC). The last one was M 2.2, 6 km (4 mi) S, at 5:05 pm AST on 8 November 2026, estimated intensity II (weak) in town. Every earthquake near Coamo

This page: a magnitude 2.0 earthquake was recorded 6 km (4 mi) east-southeast of Coamo, PR, at 2:35 am AST on 9 November 2019 (06:35 UTC), 36 km deep.

USGS: 2 km SE of Palmarejo, Puerto Rico

47 km (29 mi) SSW of San Juan, PR · 34 km (21 mi) E of Ponce, PR

2:35 am AST, Nov 9, 2019 · · 36 km deep · released about 33 lb of TNT

Every earthquake near Coamo Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Coamo Municipio 8 kmSalinas Municipio 10 kmAibonito Municipio 10 kmSanta Isabel Municipio 14 kmBarranquitas Municipio 17 kmCayey Municipio 17 kmVillalba Municipio 20 kmGuayama Municipio 20 kmJuana Díaz 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
2:35 am AST on 9 November 2019 ()
Where
6 km (4 mi) east-southeast of Coamo, PR · earthquakes near Coamo
Magnitude
M 2.0 (md)
Depth
36 km below the surface
Felt
no reports yet
Nearest
Coamo Municipio, 8 km NW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2560 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 Coamo, 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: Mariano Colón, Parcelas Peñuelas, Coco, Vázquez, Las Ochenta, Salinas.

How big was it?

This earthquake released about 33 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 5.8 450,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 320,000× the energy of this one
  3. Around the size people start to feel M 3.0 29× the energy of this one
  4. This earthquake M 2.0 about 33 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 4.6 on 2016-12-05 — about 7,200 times the energy of this one.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.1 3 km W of Aguas Buenas, Puerto Rico · 29 km NE 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 18.0505, -66.3060. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Coamo Municipio, PR 8 km (5 mi) NW earthquakes near Coamo Municipio
Salinas Municipio, PR 10 km (6 mi) SSE earthquakes near Salinas Municipio
Aibonito Municipio, PR 10 km (6 mi) NNE earthquakes near Aibonito Municipio
Santa Isabel Municipio, PR 14 km (9 mi) SW earthquakes near Santa Isabel Municipio
Barranquitas Municipio, PR 17 km (10 mi) N earthquakes near Barranquitas Municipio
Cayey Municipio, PR 17 km (11 mi) ENE earthquakes near Cayey Municipio

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

Aftershocks so far

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

  1. 2.1 10 km SSE of Ponce, Puerto Rico
  2. 2.1 8 km S of Potala Pastillo, Puerto Rico
  3. 2.3 2 km SW of Vázquez, Puerto Rico
  4. 2.5 1 km SW of Bairoa, Puerto Rico
  5. 2.0 2 km WSW of Vázquez, Puerto Rico
  6. 2.1 12 km SSE of Ponce, Puerto Rico
  7. 2.2 12 km SSE of Ponce, Puerto Rico
  8. 2.6 12 km SSE of Ponce, Puerto Rico
  9. 2.1 12 km SSE of Ponce, Puerto Rico
  10. 2.7 11 km SSE of Ponce, Puerto Rico
  11. 2.4 12 km SSE of Ponce, Puerto Rico
  12. 2.0 2 km SSE of Magas Arriba, Puerto Rico
  13. 3.1 0 km ESE of Río Lajas, Puerto Rico
  14. 2.2 13 km SSE of Ponce, Puerto Rico
  15. 2.3 9 km SSW of Central Aguirre, 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.