QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

Earthquake near Maricao, PR

No earthquake was likely felt in Maricao in the 24 hours to 10:20 am AST (14:20 UTC). The last one was M 3.0, 33 km (20 mi) SSE, at 3:45 am AST on 8 November 2026, estimated intensity II (weak) in town. Every earthquake near Maricao

This page: a magnitude 2.6 earthquake was recorded 6 km (4 mi) west-northwest of Maricao, PR, at 6:20 am AST on 26 October 2022 (10:20 UTC), 19 km deep. 1 person has reported feeling it to USGS.

USGS: 5 km W of Maricao, Puerto Rico

12 km (7 mi) E of Mayagüez, PR · 105 km (65 mi) WSW of San Juan, PR

6:20 am AST, Oct 26, 2022 · · 19 km deep · released about 220 lb of TNT

Every earthquake near Maricao Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Las Marías Municipio 7 kmSan Germán Municipio 9 kmMaricao Municipio 10 kmHormigueros Municipio 11 kmSabana Grande Municipio 15 kmAñasco Municipio 15 kmSan Sebastián Municipio 17 kmLares Municipio 20 kmMoca 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
6:20 am AST on 26 October 2022 ()
Where
6 km (4 mi) west-northwest of Maricao, PR · earthquakes near Maricao
Magnitude
M 2.6 (md)
Depth
19 km below the surface
Felt
1 report · strongest reported intensity II
Nearest
Las Marías Municipio, 7 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1476 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, people at rest would likely notice it out to about 14 km (9 mi) from the epicentre. In Maricao, 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.

Likely felt in: Mayagüez 11 km, intensity II · San Germán 12 km, intensity II. Estimated for each town centre; each link is that town's own record.

How big was it?

This earthquake released about 220 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 68,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 48,000× the energy of this one
  3. Around the size people start to feel M 3.0 4.3× the energy of this one
  4. This earthquake M 2.6 about 220 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 6.4 on 2020-01-07 — about 540,000 times the energy of this one.

Before 2016, the USGS record lists 5 earthquakes of M5 or more within 50 km:

  1. 6.3 6 km WNW of Aguadilla, Puerto Rico · 34 km NW of this epicentre
  2. 6.1 15 km WNW of San Antonio, Puerto Rico · 45 km NNW of this epicentre
  3. 5.8 4 km E of Moca, Puerto Rico · 24 km N of this epicentre
  4. 5.2 19 km SW of Stella, Puerto Rico · 36 km W of this epicentre
  5. 5.1 21 km SW of Stella, Puerto Rico · 36 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 18.1908, -67.0328. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Las Marías Municipio, PR 7 km (4 mi) NE earthquakes near Las Marías Municipio
San Germán Municipio, PR 9 km (6 mi) S earthquakes near San Germán Municipio
Maricao Municipio, PR 10 km (6 mi) E earthquakes near Maricao Municipio
Hormigueros Municipio, PR 11 km (7 mi) SW earthquakes near Hormigueros Municipio
Sabana Grande Municipio, PR 15 km (9 mi) SE earthquakes near Sabana Grande Municipio
Añasco Municipio, PR 15 km (9 mi) NW earthquakes near Añasco Municipio

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

Aftershocks so far

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

  1. 1.9 1 km W of Guánica, Puerto Rico
  2. 1.9 2 km SW of Fuig, Puerto Rico
  3. 2.1 1 km N of Magas Arriba, Puerto Rico
  4. 2.3 1 km N of Guayanilla, Puerto Rico
  5. 2.4 3 km SW of Indios, Puerto Rico
  6. 2.4 Puerto Rico region
  7. 2.1 7 km SSE of Guánica, Puerto Rico
  8. 2.0 1 km SW of Guánica, Puerto Rico
  9. 2.9 6 km ENE of La Parguera, Puerto Rico
  10. 2.7 6 km SSW of Indios, Puerto Rico
  11. 2.0 4 km ESE of Indios, Puerto Rico
  12. 2.0 6 km WSW of Fuig, Puerto Rico
  13. 2.0 6 km SSE of Maria Antonia, Puerto Rico
  14. 1.7 5 km SE of La Parguera, Puerto Rico
  15. 2.1 2 km SW 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.