QuakeIndex

Earthquake · reviewed by a seismologist

M 1.9ml

Earthquake near Berlin, NH

USGS: 11 km SSW of Gilead, Maine

6:06 pm EDT, Sep 2, 2018 · · 5.2 km deep · released about 21 lb of TNT

Every earthquake near Berlin Felt it? Tell USGS Check my area
10 km30 km60 km120 km N Oxford County 32 kmCoos County 45 kmCarroll County 49 kmAndroscoggin County 67 kmEssex County 74 kmGrafton County 77 kmCumberland County 77 kmCaledonia County 89 kmFranklin County 90 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
6:06 pm EDT on 2 September 2018 ()
Where
23 km (15 mi) SSE of Berlin, NH · earthquakes near Berlin
Magnitude
M 1.9 (ml)
Depth
5.2 km below the surface
Felt
no reports yet
Nearest
Oxford County, 32 km NE
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2886 days ago

A magnitude 1.9 earthquake was recorded 23 km (15 mi) SSE of Berlin, NH, at 6:06 pm EDT on 2 September 2018 (22:06 UTC). This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

Earthquakes near other towns within 30 km: Gorham, Lovell, Bethel, North Conway.

How big was it?

This earthquake released about 21 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.9 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 710,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 500,000× the energy of this one
  3. Around the size people start to feel M 3.0 45× the energy of this one
  4. This earthquake M 1.9 about 21 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

No earthquake of M4 or more has been recorded within 50 km since our catalogue begins in 2016.

Before 2016, the USGS record lists one earthquake of M5 or more within 50 km:

  1. 5.6 5 km NNW of Tamworth, New Hampshire · 48 km SSW of this epicentre

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 44.2931, -71.0237. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Oxford County, ME 32 km (20 mi) NE earthquakes near Oxford County
Coos County, NH 45 km (28 mi) NNW earthquakes near Coos County
Carroll County, NH 49 km (31 mi) SSW earthquakes near Carroll County
Androscoggin County, ME 67 km (41 mi) ESE earthquakes near Androscoggin County
Essex County, VT 74 km (46 mi) NW earthquakes near Essex County
Grafton County, NH 77 km (48 mi) WSW earthquakes near Grafton County

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

Aftershocks so far

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

  1. 1.6 2 km NW of Hanover, Maine
  2. 2.4 Maine
  3. 1.9 0 km NNE of Gorham, New Hampshire
  4. 2.9 0 km SSW of Gorham, New Hampshire
  5. 2.0 7 km WNW of Andover, Maine
  6. 2.0 5 km SW of Albany, New Hampshire
  7. 1.8 2 km SSE of West Paris, Maine
  8. 2.1 9 km NNW of Harrison, Maine
  9. 1.5 2 km N of Livermore, New Hampshire
  10. 1.9 5 km WNW of Albany, New Hampshire
  11. 2.3 10 km NNW of Livermore, New Hampshire
  12. 1.7 4 km N of Paris, Maine

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.