QuakeIndex

Earthquake · reviewed by a seismologist

M 2.8md

56 km ENE of Punta Cana, Dominican Republic

Yes. A magnitude 2.8 earthquake was recorded 56 km ENE of Punta Cana, Dominican Republic, at 12:54 am AST on 7 May 2018 (04:54 UTC), 111 km deep.

· 111 km deep · released about 510 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Mayagüez Municipio 69 kmRincón Municipio 78 kmAguadilla Municipio 82 kmAguada Municipio 82 kmAñasco Municipio 92 kmMoca Municipio 92 kmIsabela Municipio 95 kmHormigueros Municipio 103 kmQuebradillas Municipio 104 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 2.8 (md)
Depth
111 km below the surface
Felt
no reports yet
Nearest
Mayagüez Municipio, 69 km S
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 3017 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. 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 510 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.8 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 30,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 21,000× the energy of this one
  3. Around the size people start to feel M 3.0 1.9× the energy of this one
  4. This earthquake M 2.8 about 510 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 4.4 on 2017-10-01 — about 230 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 18.7001, -67.8866. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Mayagüez Municipio, PR 69 km (43 mi) S earthquakes near Mayagüez Municipio
Rincón Municipio, PR 78 km (49 mi) ESE earthquakes near Rincón Municipio
Aguadilla Municipio, PR 82 km (51 mi) ESE earthquakes near Aguadilla Municipio
Aguada Municipio, PR 82 km (51 mi) ESE earthquakes near Aguada Municipio
Añasco Municipio, PR 92 km (57 mi) ESE earthquakes near Añasco Municipio
Moca Municipio, PR 92 km (57 mi) ESE earthquakes near Moca Municipio

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

Aftershocks so far

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

  1. 3.1 61 km WNW of Rincón, Puerto Rico
  2. 2.3 31 km WNW of Rincón, Puerto Rico
  3. 3.0 34 km ESE of Punta Cana, Dominican Republic
  4. 2.3 50 km W of Rincón, Puerto Rico
  5. 2.7 46 km ENE of Punta Cana, Dominican Republic
  6. 2.8 45 km NW of San Antonio, Puerto Rico
  7. 2.2 52 km NW of San Antonio, Puerto Rico
  8. 2.9 54 km SE of Punta Cana, Dominican Republic
  9. 2.6 58 km ESE of Punta Cana, Dominican Republic
  10. 2.9 48 km NE of Punta Cana, Dominican Republic
  11. 2.8 59 km NW of San Antonio, Puerto Rico
  12. 2.7 32 km NW of Rincón, Puerto Rico
  13. 2.6 62 km NW of San Antonio, Puerto Rico
  14. 3.0 70 km NW of Rincón, Puerto Rico
  15. 3.0 20 km SE of Punta Cana, Dominican Republic

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.