QuakeIndex

Earthquake · reviewed by a seismologist

M 1.6md

Earthquake near Hickory, NC

No earthquake was likely felt in Hickory in the 24 hours to 11:54 am EST (16:54 UTC). The last one was M 4.1, 240 km (149 mi) W, at 9:04 am EDT on 10 May 2025, estimated intensity III (weak) in town; 45,935 felt reports to USGS. Every earthquake near Hickory

This page: a magnitude 1.6 earthquake was recorded 7 km (4 mi) south of Hickory, NC, at 6:13 pm EDT on 21 October 2018 (22:13 UTC), 1.3 km deep. 1 person has reported feeling it to USGS.

USGS: 3 km SSE of Brookford, North Carolina

69 km (43 mi) NW of Charlotte, NC · 47 km (29 mi) WNW of Mooresville, NC

6:13 pm EDT, Oct 21, 2018 · · 1.3 km deep · released about 8.1 lb of TNT

10 km30 km60 km120 km N Catawba County 11 kmLincoln County 23 kmAlexander County 31 kmBurke County 35 kmCaldwell County 36 kmCleveland County 43 kmIredell County 44 kmGaston County 45 kmRutherford County 61 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
6:13 pm EDT on 21 October 2018 ()
Where
7 km (4 mi) south of Hickory, NC · earthquakes near Hickory
North Carolina today
every earthquake in North Carolina in the last 24 hours
Magnitude
M 1.6 (md)
Depth
1.3 km below the surface
Felt
1 report · strongest reported intensity I
Nearest
Catawba County, 11 km E
Status
Reviewed by a seismologist

USGS · last changed by USGS · we first saw it 2937 days ago

This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.

At this magnitude and depth, people at rest would likely notice it out to about 8 km (5 mi) from the epicentre. In Hickory, 7 km away, the estimate is intensity II (weak). 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.

Earthquakes near other towns within 30 km: Mountain View, Longview, Hildebran, Newton, Conover, Saint Stephens.

How big was it?

This earthquake released about 8.1 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.6 would have released about 32 times as much.

  1. Mineral, Virginia 2011 M 5.8 1,900,000× the energy of this one
  2. Magna, Utah 2020 M 5.7 1,300,000× the energy of this one
  3. Around the size people start to feel M 3.0 120× the energy of this one
  4. This earthquake M 1.6 about 8.1 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 since 1900 lists no earthquake of M5 or more within 50 km.

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 35.6745, -81.3310. Map © OpenStreetMap contributors.

Nearby places

PlaceDistanceDirection from the epicentre
Catawba County, NC 11 km (7 mi) E earthquakes near Catawba County
Lincoln County, NC 23 km (14 mi) SSE earthquakes near Lincoln County
Alexander County, NC 31 km (19 mi) NNE earthquakes near Alexander County
Burke County, NC 35 km (22 mi) WNW earthquakes near Burke County
Caldwell County, NC 36 km (23 mi) NNW earthquakes near Caldwell County
Cleveland County, NC 43 km (27 mi) SSW earthquakes near Cleveland County

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

Aftershocks so far

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

  1. 2.2 13 km NNW of Cedar Rock, North Carolina
  2. 1.8 3 km SE of Troutman, North Carolina
  3. 1.8 North Carolina
  4. 2.0 3 km ESE of Catawba, North Carolina
  5. 2.1 3 km ESE of Catawba, North Carolina
  6. 2.6 6 km N of Morganton, North Carolina
  7. 2.0 5 km W of Statesville, North Carolina
  8. 1.6 2 km N of Catawba, North Carolina
  9. 1.7 6 km ESE of Mountain View, North Carolina
  10. 2.1 12 km NNW of Cedar Rock, North Carolina
  11. 2.4 7 km WSW of Newton, North Carolina

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.