QuakeIndex

Earthquake · reviewed by a seismologist

M 2.6md

Mona Passage

Yes. A magnitude 2.6 earthquake was recorded in Mona Passage, at 6:16 am AST on 26 December 2019 (10:16 UTC), 24 km deep.

· 24 km deep · released about 280 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Aguadilla Municipio 80 kmRincón Municipio 86 kmAguada Municipio 86 kmIsabela Municipio 89 kmMoca Municipio 93 kmQuebradillas Municipio 98 kmAñasco Municipio 98 kmCamuy Municipio 104 kmSan Sebastián Municipio 105 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
Magnitude
M 2.6 (md)
Depth
24 km below the surface
Felt
no reports yet
Nearest
Aguadilla Municipio, 80 km SE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2512 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 5 km (3 mi) from the epicentre. 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.

How big was it?

This earthquake released about 280 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 55,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 39,000× the energy of this one
  3. Around the size people start to feel M 3.0 3.5× the energy of this one
  4. This earthquake M 2.6 about 280 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 in our catalogue was M 6.0 on 2019-09-24 — about 110,000 times the energy of this one.

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 19.0186, -67.6478. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Aguadilla Municipio, PR 80 km (50 mi) SE earthquakes near Aguadilla Municipio
Rincón Municipio, PR 86 km (54 mi) SSE earthquakes near Rincón Municipio
Aguada Municipio, PR 86 km (54 mi) SE earthquakes near Aguada Municipio
Isabela Municipio, PR 89 km (56 mi) SE earthquakes near Isabela Municipio
Moca Municipio, PR 93 km (58 mi) SE earthquakes near Moca Municipio
Quebradillas Municipio, PR 98 km (61 mi) SE earthquakes near Quebradillas 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. 2.8 89 km NE of Punta Cana, Dominican Republic
  2. 2.5 94 km NW of San Antonio, Puerto Rico
  3. 2.8 91 km NE of Punta Cana, Dominican Republic
  4. 2.6 Mona Passage
  5. 3.0 99 km NW of San Antonio, Puerto Rico
  6. 3.2 70 km NNE of Punta Cana, Dominican Republic
  7. 2.9 82 km NE of Punta Cana, Dominican Republic
  8. 2.9 102 km NE of Punta Cana, Dominican Republic
  9. 3.0 89 km NE of Punta Cana, Dominican Republic
  10. 3.2 75 km NNE of Punta Cana, Dominican Republic
  11. 2.9 96 km NE of Punta Cana, Dominican Republic
  12. 3.5 86 km NE of Punta Cana, Dominican Republic
  13. 3.1 87 km NE of Punta Cana, Dominican Republic
  14. 3.3 90 km NNE of Punta Cana, Dominican Republic
  15. 3.0 68 km NNW of San Antonio, 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.