QuakeIndex

Earthquake · reviewed by a seismologist

M 5.3mwp

65 km NE of Samaná, Dominican Republic

· 10 km deep · released about 1.1 kilotons of TNT

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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 5.3 (mwp)
Depth
10 km below the surface
Felt
114 reports · strongest reported intensity VII
Measured shaking
intensity IV (ShakeMap)
USGS impact alert
green
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 943 days ago

This was a moderate earthquake. Shaking at this size can damage poorly built structures close to the epicentre. 114 people have reported feeling it to USGS.

How big was it?

This earthquake released about 1.1 kilotons of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 6.3 would have released about 32 times as much.

  1. Northridge, California 1994 M 6.7 150× the energy of this one
  2. Mineral, Virginia 2011 M 5.8 6.7× the energy of this one
  3. Magna, Utah 2020 M 5.7 4.7× the energy of this one
  4. This earthquake M 5.3 about 1.1 kilotons of TNT
  5. Around the size people start to feel M 3.0 this one released 2,400× 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 19.5388, -68.8215. Map © OpenStreetMap contributors.

Aftershocks so far

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

  1. 3.0 46 km NE of Saman?, Dominican Republic
  2. 4.3 33 km NE of Samaná, Dominican Republic
  3. 4.4 33 km NE of Samaná, Dominican Republic
  4. 3.7 45 km NE of Miches, Dominican Republic
  5. 4.2 91 km NE of Miches, Dominican Republic
  6. 3.5 59 km NE of Miches, Dominican Republic
  7. 3.9 62 km NNE of Miches, Dominican Republic
  8. 4.0 44 km NE of Miches, Dominican Republic
  9. 3.4 54 km ENE of Miches, Dominican Republic
  10. 3.4 25 km NE of Miches, Dominican Republic
  11. 3.8 51 km NE of Miches, Dominican Republic
  12. 3.9 78 km NE of Samaná, Dominican Republic
  13. 3.5 45 km NNE of Miches, Dominican Republic
  14. 4.2 85 km NNE of Miches, Dominican Republic
  15. 3.9 39 km NE of Miches, 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 4.8 on 2016-11-13.

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

On USGS

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