QuakeIndex

Earthquake · reviewed by a seismologist

M 2.0mb_lg

15 km N of Rockport, Massachusetts

· 10 km deep · released about 30 lb of TNT

Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Essex County 28 kmRockingham County 47 kmSuffolk County 62 kmStrafford County 66 kmYork County 70 kmMiddlesex County 75 kmNorfolk County 85 kmPlymouth County 91 kmHillsborough County 94 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 2.0 (mb_lg)
Depth
10 km below the surface
Felt
5 reports · strongest reported intensity III
Nearest
Essex County, 28 km SW
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 1659 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage. 5 people have reported feeling it to USGS.

How big was it?

This earthquake released about 30 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 3.0 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 500,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 350,000× the energy of this one
  3. Around the size people start to feel M 3.0 32× the energy of this one
  4. This earthquake M 2.0 about 30 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.

Where

Epicentre 42.7960, -70.5864. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection
Essex County, MA 28 km (18 mi) NE of here earthquakes near Essex County
Rockingham County, NH 47 km (29 mi) ESE of here earthquakes near Rockingham County
Suffolk County, MA 62 km (38 mi) NE of here earthquakes near Suffolk County
Strafford County, NH 66 km (41 mi) SSE of here earthquakes near Strafford County
York County, ME 70 km (44 mi) S of here earthquakes near York County
Middlesex County, MA 75 km (46 mi) ENE of here earthquakes near Middlesex County

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

Aftershocks so far

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

  1. 1.7 2 km NE of Danville, New Hampshire
  2. 2.1 34 km SE of York Beach, Maine
  3. 1.6 3 km SSE of Greenland, New Hampshire
  4. 2.0 13 km SE of York Harbor, Maine
  5. 2.0 10 km SE of York Harbor, Maine
  6. 3.8 9 km SE of York Harbor, Maine
  7. 1.9 42 km ENE of Rockport, Massachusetts

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.