QuakeIndex

Earthquake · reviewed by a seismologist

M 3.8mb

14 km E of Gonzalo, Dominican Republic

· 75 km deep · released about 7.6 tons of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N
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 3.8 (mb)
Depth
75 km below the surface
Felt
15 reports · strongest reported intensity III
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2928 days ago

This was a small earthquake. Shaking like this is often felt indoors nearby and very rarely causes damage. 15 people have reported feeling it to USGS.

How big was it?

This earthquake released about 7.6 tons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 4.8 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 22,000× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 1,000× the energy of this one
  3. Magna, Utah 2020 M 5.7 710× the energy of this one
  4. This earthquake M 3.8 about 7.6 tons of TNT
  5. Around the size people start to feel M 3.0 this one released 16× more

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.

Where

Epicentre 18.9740, -69.6109. Map © OpenStreetMap contributors.

Aftershocks so far

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

  1. 4.2 13 km SSW of Bayaguana, Dominican Republic
  2. 4.5 3 km S of Sánchez, Dominican Republic
  3. 4.4 7 km NNW of Bayaguana, Dominican Republic
  4. 4.0 10 km SE of El Valle, Dominican Republic
  5. 3.3 3 km WNW of Sabana de la Mar, Dominican Republic
  6. 4.2 5 km NW of Las Terrenas, Dominican Republic
  7. 4.1 8 km E of Gonzalo, Dominican Republic
  8. 4.2 7 km S of Monte Plata, Dominican Republic
  9. 4.1 9 km SSW of Sánchez, Dominican Republic
  10. 4.4 4 km WNW of Villa Riva, Dominican Republic
  11. 4.4 5 km N of Villa Riva, Dominican Republic
  12. 3.9 7 km E of El Factor, Dominican Republic
  13. 4.0 5 km SE of El Factor, Dominican Republic
  14. 4.2 11 km WNW of Guayabo Dulce, Dominican Republic
  15. 3.4 7 km SSW of Samaná, 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.

For this area

The largest earthquake within 50 km in our catalogue was M 4.7 on 2018-06-03 — it released about 22 times the energy of this one.

From the QuakeIndex catalogue, built from the USGS FDSN event service.

On USGS

QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.